Misplaced Pages

#754245

121-732: Jet Data Access Objects is a general programming interface for database access on Microsoft Windows systems, primarily for Jet and ACE databases . DAO were originally called "VT Objects.: DAO 1.0 came up in November 1992 as part of Access 1.0. In version 3.5 it was able to bypass the Jet engine all together and directly access ODBC data sources, including Microsoft SQL Server and other enterprise database systems. DAO 3.6 shipped with Jet 4.0. Access 2007 and later uses ACE with its ACEDAO, where most new features supported by ACE are added to. ACEDAO no longer supports ODBCDirect. DAO works by creating

242-412: A Law Commission -sponsored proposal to both unite and codify English and Scots Law, proposed the abolition of consideration. Some commentators have suggested for consideration to be replaced by estoppel as a basis for contracts. A contract is often evidenced in writing or by deed . The general rule is that a person who signs a contractual document will be bound by the terms in that document. This rule

363-539: A meeting of the minds between the parties. Within the overarching category of civil law jurisdictions, there are several distinct varieties of contract law with their own distinct criteria: the German tradition is characterised by the unique doctrine of abstraction , systems based on the Napoleonic Code are characterised by their systematic distinction between different types of contracts, and Roman-Dutch law

484-544: A procedural language such as Lua could consist primarily of basic routines to execute code, manipulate data or handle errors while an API for an object-oriented language , such as Java, would provide a specification of classes and its class methods . Hyrum's law states that "With a sufficient number of users of an API, it does not matter what you promise in the contract: all observable behaviors of your system will be depended on by somebody." Meanwhile, several studies show that most applications that use an API tend to use

605-434: A severability clause . The test of whether a clause is severable is an objective test—whether a reasonable person would see the contract standing even without the clauses. Typically, non-severable contracts only require the substantial performance of a promise rather than the whole or complete performance of a promise to warrant payment. However, express clauses may be included in a non-severable contract to explicitly require

726-420: A software framework : a framework can be based on several libraries implementing several APIs, but unlike the normal use of an API, the access to the behavior built into the framework is mediated by extending its content with new classes plugged into the framework itself. Moreover, the overall program flow of control can be out of the control of the caller and in the framework's hands by inversion of control or

847-467: A tort action based on reliance. Although verbal contracts are generally binding in most common law jurisdictions, some types of contracts may require formalities such as being in writing or by deed . A contract cannot be formed without assent of the two parties to be bound by its terms. Normally this is by written signature (which may include an electronic signature), but the assent may also be oral or by conduct. Assent may be given by an agent for

968-418: A user interface , which connects a computer to a person, an application programming interface connects computers or pieces of software to each other. It is not intended to be used directly by a person (the end user ) other than a computer programmer who is incorporating it into software. An API is often made up of different parts which act as tools or services that are available to the programmer. A program or

1089-567: A "workspace" object in which all database operations are performed. The workspace object exists as a session object that exists within a larger database engine object. There are two types of database engines: a Jet Database Engine object, and an ODBCDirect database engine. The Jet database engine (in Access 2007 and later, ACE) object consists of several objects: The first version of DAO used Snapshot/Dynaset/Table objects etc. In DAO 2.0 Recordset etc. objects were introduced. DAO 3.0/3.5 only supported

1210-449: A broad term describing much of the communication on the internet. When used in this way, the term API has overlap in meaning with the term communication protocol . The interface to a software library is one type of API. The API describes and prescribes the "expected behavior" (a specification) while the library is an "actual implementation" of this set of rules. A single API can have multiple implementations (or none, being abstract) in

1331-517: A business ecosystem. The main policies for releasing an API are: An important factor when an API becomes public is its "interface stability". Changes to the API—for example adding new parameters to a function call—could break compatibility with the clients that depend on that API. When parts of a publicly presented API are subject to change and thus not stable, such parts of a particular API should be documented explicitly as "unstable". For example, in

SECTION 10

#1732791851755

1452-407: A certain field. In addition, the court may also imply a term; if price is excluded, the court may imply a reasonable price, with the exception of land, and second-hand goods, which are unique. If there are uncertain or incomplete clauses in the contract, and all options in resolving its true meaning have failed, it may be possible to sever and void just those affected clauses if the contract includes

1573-696: A civil law legal system at independence or adopting civil and commercial codes based on German or French law. While jurisdictions such as Japan, South Korea, and the Republic of China modelled their contract law after the German pandectist tradition, the Arab world largely modelled its legal framework after the Napoleonic Code . While the Netherlands adopted a legal system based on the Napoleonic Code in

1694-460: A client would need to know for practical purposes. Documentation is crucial for the development and maintenance of applications using the API. API documentation is traditionally found in documentation files but can also be found in social media such as blogs, forums, and Q&A websites. Traditional documentation files are often presented via a documentation system, such as Javadoc or Pydoc, that has

1815-435: A consistent appearance and structure. However, the types of content included in the documentation differs from API to API. In the interest of clarity, API documentation may include a description of classes and methods in the API as well as "typical usage scenarios, code snippets, design rationales, performance discussions, and contracts", but implementation details of the API services themselves are usually omitted. It can take

1936-569: A contract use technicalities to satisfy requirements while in fact circumventing them in practice. Typically, this is in the form of "peppercorn" consideration, i.e. consideration that is negligible but still satisfies the requirements of law. The doctrine of consideration has been expressly rejected by the UNIDROIT Principles of International Commercial Contracts on the grounds that it yields uncertainty and unnecessary litigation, thereby hindering international trade. Similarly,

2057-454: A contractual term will become a condition: A term is a condition (rather than an intermediate or innominate term, or a warranty), in any of the following five situations: (1) statute explicitly classifies the term in this way; (2) there is a binding judicial decision supporting this classification of a particular term as a "condition"; (3) a term is described in the contract as a "condition" and upon construction it has that technical meaning; (4)

2178-411: A future date. The activities and intentions of the parties entering into a contract may be referred to as contracting . In the event of a breach of contract , the injured party may seek judicial remedies such as damages or equitable remedies such as specific performance or rescission . A binding agreement between actors in international law is known as a treaty . Contract law, the field of

2299-534: A given API, it is possible to infer the typical usages, as well the required contracts and directives. Then, templates can be used to generate natural language from the mined data. In 2010, Oracle Corporation sued Google for having distributed a new implementation of Java embedded in the Android operating system. Google had not acquired any permission to reproduce the Java API, although permission had been given to

2420-411: A mixture of Roman-Dutch law and English common law (e.g. South Africa and neighbouring countries). In common law jurisdictions, the formation of a contract generally requires an offer, acceptance , consideration , and mutual intent to be bound . The concept of contract law as a distinct area of law in common law jurisdictions originated with the now-defunct writ of assumpsit , which was originally

2541-441: A modular software library in the 1940s for EDSAC , an early computer. The subroutines in this library were stored on punched paper tape organized in a filing cabinet . This cabinet also contained what Wilkes and Wheeler called a "library catalog" of notes about each subroutine and how to incorporate it into a program. Today, such a catalog would be called an API (or an API specification or API documentation) because it instructs

SECTION 20

#1732791851755

2662-417: A new software product. The process of joining is called integration . As an example, consider a weather sensor that offers an API. When a certain message is transmitted to the sensor, it will detect the current weather conditions and reply with a weather report. The message that activates the sensor is an API call , and the weather report is an API response . A weather forecasting app might integrate with

2783-470: A number of forms, including instructional documents, tutorials, and reference works. It'll also include a variety of information types, including guides and functionalities. Restrictions and limitations on how the API can be used are also covered by the documentation. For instance, documentation for an API function could note that its parameters cannot be null, that the function itself is not thread safe . Because API documentation tends to be comprehensive, it

2904-414: A number of weather sensor APIs, gathering weather data from throughout a geographical area. An API is often compared to a contract . It represents an agreement between parties: a service provider who offers the API and the software developers who rely upon it. If the API remains stable, or if it changes only in predictable ways, developers' confidence in the API will increase. This may increase their use of

3025-451: A party. Remedies for breach of contract include damages (monetary compensation for loss) and, for serious breaches only, cancellation. Specific performance and injunction may also be available if damages are insufficient. In order for a legally enforceable contract to be formed, the parties must reach mutual assent (also called a meeting of the minds ). This is typically reached through an offer and an acceptance which does not vary

3146-406: A patient refuses to pay after being examined by a doctor, the patient has breached a contract implied in fact. A contract which is implied in law is sometimes called a quasi-contract . Such contracts are means for courts to remedy situations in which one party would be unjustly enriched were he or she not required to compensate the other. Quantum meruit claims are an example. Where something

3267-478: A pharmaceutical manufacturer, advertised a smoke ball that would, if sniffed "three times daily for two weeks", prevent users from catching the flu . If it failed to do so, the company promised to pay the user £ 100, adding that they had "deposited £1,000 in the Alliance Bank to show [their] sincerity in the matter". When the company was sued for the money, they argued the advert should not have been taken as

3388-440: A programmer on how to use (or "call") each subroutine that the programmer needs. Wilkes and Wheeler's book The Preparation of Programs for an Electronic Digital Computer contains the first published API specification. Joshua Bloch considers that Wilkes and Wheeler "latently invented" the API, because it is more of a concept that is discovered than invented. The term "application program interface" (without an -ing suffix)

3509-453: A programmer that uses one of these parts is said to call that portion of the API. The calls that make up the API are also known as subroutines , methods, requests, or endpoints . An API specification defines these calls, meaning that it explains how to use or implement them. One purpose of APIs is to hide the internal details of how a system works, exposing only those parts a programmer will find useful and keeping them consistent even if

3630-530: A purported acceptance that varies the terms of an offer is not an acceptance but a counteroffer and hence a rejection of the original offer. The principle of offer and acceptance has been codified under the Indian Contract Act, 1872 . In determining if a meeting of the minds has occurred, the intention of contracting parties is interpreted objectively from the perspective of a reasonable person . The "objective" approach towards contractual intent

3751-438: A reasonable construction of the contract. In New South Wales, even if there is uncertainty or incompleteness in a contract, the contract may still be binding on the parties if there is a sufficiently certain and complete clause requiring the parties to undergo arbitration, negotiation or mediation. Courts may also look to external standards, which are either mentioned explicitly in the contract or implied by common practice in

Jet Data Access Objects - Misplaced Pages Continue

3872-430: A serious, legally binding offer but a puff . The Court of Appeal held that it would appear to a reasonable man that Carbolic had made a serious offer and determined that the reward was a contractual promise. As decided in the case of Pharmaceutical Society of Great Britain v Boots Cash Cashiers , an offer that is made in response to an invitation to treat, without any negotiation or explicit modification of terms,

3993-643: A shipping company API that can be added to an eCommerce-focused website to facilitate ordering shipping services and automatically include current shipping rates, without the site developer having to enter the shipper's rate table into a web database. While "web API" historically has been virtually synonymous with web service , the recent trend (so-called Web 2.0 ) has been moving away from Simple Object Access Protocol ( SOAP ) based web services and service-oriented architecture (SOA) towards more direct representational state transfer (REST) style web resources and resource-oriented architecture (ROA). Part of this trend

4114-404: A similar mechanism. An API can specify the interface between an application and the operating system . POSIX , for example, specifies a set of common APIs that aim to enable an application written for a POSIX conformant operating system to be compiled for another POSIX conformant operating system. Linux and Berkeley Software Distribution are examples of operating systems that implement

4235-441: A small part of the API. Language bindings are also APIs. By mapping the features and capabilities of one language to an interface implemented in another language, a language binding allows a library or service written in one language to be used when developing in another language. Tools such as SWIG and F2PY, a Fortran -to- Python interface generator, facilitate the creation of such interfaces. An API can also be related to

4356-463: A software system, used for machine-to-machine communication. A well-designed API exposes only objects or actions needed by software or software developers. It hides details that have no use. This abstraction simplifies programming. Building software using APIs has been compared to using building-block toys, such as Lego bricks. Software services or software libraries are analogous to the bricks; they may be joined together via their APIs, composing

4477-625: A statement of common contractual principles for arbitrators and judges to apply where national laws are lacking. Notably, the Principles reject the doctrine of consideration, arguing that elimination of the doctrine "bring[s] about greater certainty and reduce litigation" in international trade. The Principles also rejected the abstraction principle on the grounds that it and similar doctrines are "not easily compatible with modern business perceptions and practice". Contract law can be contrasted with tort law (also referred to in some jurisdictions as

4598-411: A system of commands and thereby bar all others from writing its different versions to carry out all or part of the same commands. Contract A contract is an agreement that specifies certain legally enforceable rights and obligations pertaining to two or more parties . A contract typically involves consent to transfer of goods , services , money , or promise to transfer any of those at

4719-455: A term is a condition is determined in part by the parties' intent. In a less technical sense, however, a condition is a generic term and a warranty is a promise. In specific circumstances these terms are used differently. For example, in English insurance law, violation of a "condition precedent" by an insured is a complete defence against the payment of claims. In general insurance law,

4840-486: A tort-based action (such as the tort of deceit ) if the misrepresentation is negligent or fraudulent. In U.S. law, the distinction between the two is somewhat unclear. Warranties are generally viewed as primarily contract-based legal action, while negligent or fraudulent misrepresentations are tort-based, but there is a confusing mix of case law in the United States. In modern English law, sellers often avoid using

4961-488: A warranty is a promise that must be complied with. In product transactions, warranties promise that the product will continue to function for a certain period of time. In the United Kingdom, the courts determine whether a term is a condition or warranty, regardless of how or whether the term was classified in the contract. Statute may also declare a term or nature of term to be a condition or warranty. For example,

Jet Data Access Objects - Misplaced Pages Continue

5082-430: A wider class of persons. Research in business and management has also paid attention to the influence of contracts on relationship development and performance. Private international law is rooted in the principle that every jurisdiction has its own distinct contract law shaped by differences in public policy, judicial tradition, and the practices of local businesses. Consequently, while all systems of contract law serve

5203-408: Is a "provision forming part of a contract". Each term gives rise to a contractual obligation, breach of which can give rise to litigation , although a contract may also state circumstances in which performance of an obligation may be excused. Not all terms are stated expressly, and terms carry different legal weight depending on how central they are to the objectives of the contract. Contracting

5324-454: Is a challenge for writers to keep the documentation updated and for users to read it carefully, potentially yielding bugs. API documentation can be enriched with metadata information like Java annotations . This metadata can be used by the compiler, tools, and by the run-time environment to implement custom behaviors or custom handling. It is possible to generate API documentation in a data-driven manner. By observing many programs that use

5445-436: Is a specific phase within procurement . It includes creating, negotiating, and managing contracts. Obligations created by contracts can generally be transferred, subject to requirements imposed by law. Laws regarding the modification of contracts or the assignment of rights under a contract are broadly similar across jurisdictions. In most jurisdictions, a contract may be modified by a subsequent contract or agreement between

5566-433: Is advertised in a newspaper or on a poster, the advertisement will not normally constitute an offer but will instead be an invitation to treat , an indication that one or both parties are prepared to negotiate a deal. An exception arises if the advertisement makes a unilateral promise, such as the offer of a reward, as in the case of Carlill v Carbolic Smoke Ball Co , decided in nineteenth-century England . The company,

5687-512: Is an architectural approach that revolves around providing a program interface to a set of services to different applications serving different types of consumers. When used in the context of web development , an API is typically defined as a set of specifications, such as Hypertext Transfer Protocol (HTTP) request messages, along with a definition of the structure of response messages, usually in an Extensible Markup Language ( XML ) or JavaScript Object Notation ( JSON ) format. An example might be

5808-522: Is created in one place dynamically can be posted and updated to multiple locations on the web. For example, Twitter's REST API allows developers to access core Twitter data and the Search API provides methods for developers to interact with Twitter Search and trends data. The design of an API has significant impact on its usage. The principle of information hiding describes the role of programming interfaces as enabling modular programming by hiding

5929-399: Is first recorded in a paper called Data structures and techniques for remote computer graphics presented at an AFIPS conference in 1968. The authors of this paper use the term to describe the interaction of an application—a graphics program in this case—with the rest of the computer system. A consistent application interface (consisting of Fortran subroutine calls) was intended to free

6050-404: Is largely based on the writings of renaissance-era Dutch jurists and case law applying general principles of Roman law prior to the Netherlands' adoption of the Napoleonic Code. The UNIDROIT Principles of International Commercial Contracts , published in 2016, aim to provide a general harmonised framework for international contracts, independent of the divergences between national laws, as well as

6171-453: Is now the most common meaning of the term API. The Semantic Web proposed by Tim Berners-Lee in 2001 included "semantic APIs" that recast the API as an open , distributed data interface rather than a software behavior interface. Proprietary interfaces and agents became more widespread than open ones, but the idea of the API as a data interface took hold. Because web APIs are widely used to exchange data of all kinds online, API has become

SECTION 50

#1732791851755

6292-411: Is presumed to incorporate the terms of the invitation to treat. In contract law, consideration refers to something of value which is given in exchange for the fulfilment of a promise. In Dunlop v. Selfridge , Lord Dunedin described consideration "the price for which the promise of the other is bought". Consideration can take multiple forms and includes both benefits to the promisor and detriments to

6413-545: Is referred to as the rule in L'Estrange v Graucob or the "signature rule". This rule was approved by the High Court of Australia in Toll(FGCT) Pty Ltd v Alphapharm Pty Ltd . The rule typically binds a signatory to a contract regardless of whether they have actually read it, provided the document is contractual in nature. However, defences such as duress or unconscionability may enable the signer to avoid

6534-475: Is related to the Semantic Web movement toward Resource Description Framework (RDF), a concept to promote web-based ontology engineering technologies. Web APIs allow the combination of multiple APIs into new applications known as mashups . In the social media space, web APIs have allowed web communities to facilitate sharing content and data between communities and applications. In this way, content that

6655-729: Is restricted on public policy grounds. Consequently, the validity and enforceability of a contract depends not only on whether a jurisdiction is a common, civil, or mixed law jurisdiction but also on the jurisdiction's particular policies regarding capacity. For instance, very small children may not be held to bargains they have made, on the assumption that they lack the maturity to understand what they are doing; errant employees or directors may be prevented from contracting for their company, because they have acted ultra vires (beyond their power). Another example might be people who are mentally incapacitated, either by disability or drunkenness. Specifics vary between jurisdictions, for example article 39 of

6776-707: The Egyptian Civil Code , modelled after the Napoleonic Code but containing provisions designed to fit Arab and Islamic society. The Egyptian Civil Code was subsequently used as a model for the majority of Arab states. In the 20th century, the growth of export trade led to countries adopting international conventions, such as the Hague-Visby Rules and the UN Convention on Contracts for the International Sale of Goods , bringing

6897-620: The European Union being an economic community with a range of trade rules, there continues to be no overarching "EU Law of Contract". In 2021, Mainland China adopted the Civil Code of the People's Republic of China , which codifies its contract law in book three. While generally classified as a civil law jurisdiction, contract law in mainland China has been influenced by a number of sources, including traditional Chinese views toward

7018-549: The Google Guava library, the parts that are considered unstable, and that might change soon, are marked with the Java annotation @Beta . A public API can sometimes declare parts of itself as deprecated or rescinded. This usually means that part of the API should be considered a candidate for being removed, or modified in a backward incompatible way. Therefore, these changes allow developers to transition away from parts of

7139-686: The Java language in particular. In the 1990s, with the spread of the internet , standards like CORBA , COM , and DCOM competed to become the most common way to expose API services. Roy Fielding 's dissertation Architectural Styles and the Design of Network-based Software Architectures at UC Irvine in 2000 outlined Representational state transfer (REST) and described the idea of a "network-based Application Programming Interface" that Fielding contrasted with traditional "library-based" APIs. XML and JSON web APIs saw widespread commercial adoption beginning in 2000 and continuing as of 2021. The web API

7260-512: The Java remote method invocation API uses the Java Remote Method Protocol to allow invocation of functions that operate remotely, but appear local to the developer. Therefore, remote APIs are useful in maintaining the object abstraction in object-oriented programming ; a method call , executed locally on a proxy object, invokes the corresponding method on the remote object, using the remoting protocol, and acquires

7381-654: The Law of Property Act 1925 ). Nonetheless, a valid contract may generally be made orally or even by conduct. An oral contract may also be called a parol contract or a verbal contract, with "verbal" meaning "spoken" rather than "in words", an established usage in British English with regards to contracts and agreements, and common although somewhat deprecated as "loose" in American English . An unwritten, unspoken contract, also known as "a contract implied by

SECTION 60

#1732791851755

7502-556: The Linux Standard Base provides an ABI. Remote APIs allow developers to manipulate remote resources through protocols , specific standards for communication that allow different technologies to work together, regardless of language or platform. For example, the Java Database Connectivity API allows developers to query many different types of databases with the same set of functions, while

7623-629: The Meiji Restoration , Japan adopted a series of legal codes modelled primarily on German law, adopting its commercial code in 1899. The Japanese adaptation of German civil law was spread to the Korean Peninsula and China as a result of Japanese occupation and influence, and continues to form the basis of the legal system in South Korea and the Republic of China. In 1949, Abd El-Razzak El-Sanhuri and Edouard Lambert drafted

7744-787: The Neolithic Revolution . A notable early modern development in contract law was the emergence of the hawala system in the Indian subcontinent and the Arab world , under which a series of contractual relationships formed the basis of an informal value transfer system spanning the Silk Road . In the Indian subcontinent, the hawala system gave rise to the hundi , a transferrable contract entitling its holder in due course to obtain money from its issuer or an agent thereof, giving rise to

7865-682: The Sale of Goods Act 1979 s15A provides that terms as to title, description, quality and sample are generally conditions . The United Kingdom has also developed the concept of an "intermediate term" (also called innominate terms), first established in Hong Kong Fir Shipping Co Ltd v Kawasaki Kisen Kaisha Ltd [1962]. Traditionally, while warranties are contractual promises which are enforced through legal action, regardless of materiality, intent, or reliance, representations are traditionally precontractual statements that allow for

7986-502: The United Nations Convention on Contracts for the International Sale of Goods does not require consideration for a contract to be valid, thereby excluding the doctrine with regard to contracts covered by the convention even in common law jurisdictions where it would otherwise apply. The continued existence of the doctrine in common law jurisdictions is controversial. Scots lawyer Harvey McGregor 's " Contract Code ",

8107-553: The law of obligations concerned with contracts, is based on the principle that agreements must be honoured . Like other areas of private law , contract law varies between jurisdictions. In general, contract law is exercised and governed either under common law jurisdictions, civil law jurisdictions, or mixed-law jurisdictions that combine elements of both common and civil law. Common law jurisdictions typically require contracts to include consideration in order to be valid, whereas civil and most mixed-law jurisdictions solely require

8228-417: The 1940s, though the term did not emerge until the 1960s and 70s. An API opens a software system to interactions from the outside. It allows two software systems to communicate across a boundary — an interface — using mutually agreed-upon signals. In other words, an API connects software entities together. Unlike a user interface , an API is typically not visible to users. It is an "under the hood" portion of

8349-461: The API that will be removed or not supported in the future. Client code may contain innovative or opportunistic usages that were not intended by the API designers. In other words, for a library with a significant user base, when an element becomes part of the public API, it may be used in diverse ways. On February 19, 2020, Akamai published their annual “State of the Internet” report, showcasing

8470-435: The API. The term API initially described an interface only for end-user-facing programs, known as application programs . This origin is still reflected in the name "application programming interface." Today, the term is broader, including also utility software and even hardware interfaces . The idea of the API is much older than the term itself. British computer scientists Maurice Wilkes and David Wheeler worked on

8591-611: The Canadian province of Quebec are mixed law jurisdictions which primarily adhere to French legal tradition with regard to contract law and other principles of private law. Over the course of the nineteenth and twentieth century, the majority of jurisdictions in the Middle East and East Asia adopted civil law legal frameworks based on the Napoleonic, German, or Swiss model. The Napoleonic Code shapes contract law across much of

8712-548: The Middle East, while contract law in Japan, South Korea, and the Republic of China is rooted in the German pandectist tradition. In 1926, Turkey replaced its Ottoman-era mixture of Islamic and secular laws with a secular civil code modelled after that of Switzerland , with its contract and commercial law modelled after the Swiss Code of Obligations , which was in turn influenced by German and French legal traditions. Following

8833-502: The POSIX APIs. Microsoft has shown a strong commitment to a backward-compatible API, particularly within its Windows API (Win32) library, so older applications may run on newer versions of Windows using an executable-specific setting called "Compatibility Mode". An API differs from an application binary interface (ABI) in that an API is source code based while an ABI is binary based. For instance, POSIX provides APIs while

8954-407: The United States requires a written contract for tangible product sales in excess of $ 500, and for real estate contracts to be written. If the contract is not required by law to be written, an oral contract is generally valid and legally binding. The United Kingdom has since replaced the original Statute of Frauds, but written contracts are still required for various circumstances such as land (through

9075-454: The acts of the parties", which can be legally implied either from the facts or as required in law . Implied-in-fact contracts are real contracts under which parties receive the "benefit of the bargain". However, contracts implied in law are also known as quasi-contracts, and the remedy is quantum meruit , the fair market value of goods or services rendered. In commercial agreements it is presumed that parties intend to be legally bound unless

9196-401: The application programming interface separately from other interfaces, such as the query interface. Database professionals in the 1970s observed these different interfaces could be combined; a sufficiently rich application interface could support the other interfaces as well. This observation led to APIs that supported all types of programming, not just application programming. By 1990, the API

9317-489: The basis of public policy . For example, in the English case Balfour v. Balfour a husband agreed to give his wife £30 a month while he was away from home, but the court refused to enforce the agreement when the husband stopped paying. In contrast, in Merritt v Merritt the court enforced an agreement between an estranged couple because the circumstances suggested their agreement was intended to have legal consequences. If

9438-446: The boundary between tort and contract law somewhat uncertain. Contracts are widely used in commercial law , and for the most part form the legal foundation for transactions across the world. Common examples include contracts for the sale of services and goods, construction contracts , contracts of carriage , software licenses , employment contracts , insurance policies , sales or leases of land, among others. A contractual term

9559-499: The buyer explicitly expressed the importance of this requirement. The relative knowledge of the parties may also be a factor, as in English case of Bissett v Wilkinson , where the court did not find misrepresentation when a seller said that farmland being sold would carry 2000 sheep if worked by one team; the buyer was considered sufficiently knowledgeable to accept or reject the seller's opinion. According to Andrew Tettenborn et al , there are five differing circumstances under which

9680-409: The categorisation of contracts into bilateral and unilateral ones. For example, the High Court of Australia stated that the term unilateral contract is "unscientific and misleading". In certain circumstances, an implied contract may be created. A contract is implied in fact if the circumstances imply that parties have reached an agreement even though they have not done so expressly. For example, if

9801-527: The contract itself, countries have rules to determine the law governing the contract and the jurisdiction for disputes. For example, European Union Member States apply Article 4 of the Rome I Regulation to decide the law governing the contract, and the Brussels I Regulation to decide jurisdiction. Contracts have existed since antiquity, forming the basis of trade since the dawn of commerce and sedentism during

9922-438: The crew were already contracted to sail the ship. The pre-existing duty rule also extends to general legal duties; for example, a promise to refrain from committing a tort or crime is not sufficient. Some jurisdictions have modified the English principle or adopted new ones. For example, in the Indian Contract Act, 1872 , past consideration constitutes valid consideration, and that consideration may be from any person even if not

10043-481: The early 19th century, Dutch colonies retained the precedent-based Roman-Dutch law . British colonies in Southern Africa adopted Roman-Dutch principles in areas of private law via reception statutes adopting South African law, retaining Roman-Dutch law for most matters of private law while applying English common law principles in most matters of public law . Saint Lucia , Mauritius , Seychelles , and

10164-431: The extent of their enforceability as part of a contract. English common law distinguishes between important conditions and warranties , with a breach of a condition by one party allowing the other to repudiate and be discharged while a warranty allows for remedies and damages but not complete discharge. In modern United States law the distinction is less clear but warranties may be enforced more strictly. Whether or not

10285-420: The form of different libraries that share the same programming interface. The separation of the API from its implementation can allow programs written in one language to use a library written in another. For example, because Scala and Java compile to compatible bytecode , Scala developers can take advantage of any Java API. API use can vary depending on the type of programming language involved. An API for

10406-508: The freedom of contract in order to prevent businesses from exploiting consumers. In 1993, Harvey McGregor , a British barrister and academic, produced a "Contract Code" under the auspices of the English and Scottish Law Commissions , which was a proposal to both unify and codify the contract laws of England and Scotland. This document was offered as a possible "Contract Code for Europe", but tensions between English and German jurists meant that this proposal has so far come to naught. In spite of

10527-534: The freedom of contract. For example, the Civil Rights Act of 1964 restricted private racial discrimination against African-Americans. The US Constitution contains a Contract Clause , but this has been interpreted as only restricting the retroactive impairment of contracts. In the late twentieth and early twenty-first century, consumer protection legislation, such as Singapore's Consumer Protection (Fair Trading) Act 2003, progressively imposed limits upon

10648-567: The full performance of an obligation. English courts have established that any intention to make the contract a "complete code", so as to exclude any option to resort to a common law or extra-contractual remedy, must be evidenced in "clear express words": otherwise a "presumption that each party to a contract is entitled to all remedies which arise by operation of law" will be honoured by the courts. Common law jurisdictions typically distinguish three different categories of contractual terms, conditions, warranties and intermediate terms, which vary in

10769-568: The general purpose of contract law is to enforce promises . Other approaches to contract theory are found in the writings of legal realists and critical legal studies theorists, which have propounded Marxist and feminist interpretations of contract. Attempts at understanding the overarching purpose and nature of contracting as a phenomenon have been made, notably relational contract theory . Additionally, certain academic conceptions of contracts focus on questions of transaction cost and ' efficient breach ' theory. Another important dimension of

10890-476: The growing trend of cybercriminals targeting public API platforms at financial services worldwide. From December 2017 through November 2019, Akamai witnessed 85.42 billion credential violation attacks. About 20%, or 16.55 billion, were against hostnames defined as API endpoints. Of these, 473.5 million have targeted financial services sector organizations. API documentation describes what services an API offers and how to use those services, aiming to cover everything

11011-403: The guardian of a young girl took out a loan to educate her. After she was married, her husband promised to pay the debt but the loan was determined to be past consideration. In the early English case of Stilk v. Myrick [1809], a captain promised to divide the wages of two deserters among the remaining crew if they agreed to sail home short-handed; however, this promise was found unenforceable as

11132-490: The implementation details of the modules so that users of modules need not understand the complexities inside the modules. Thus, the design of an API attempts to provide only the tools a user would expect. The design of programming interfaces represents an important part of software architecture , the organization of a complex piece of software. APIs are one of the more common ways technology companies integrate. Those that provide and use APIs are considered as being members of

11253-452: The internal details later change. An API may be custom-built for a particular pair of systems, or it may be a shared standard allowing interoperability among many systems. The term API is often used to refer to web APIs , which allow communication between computers that are joined by the internet . There are also APIs for programming languages , software libraries , computer operating systems , and computer hardware . APIs originated in

11374-482: The law of delicts), the other major area of the law of obligations. While tort law generally deals with private duties and obligations that exist by operation of law, and provide remedies for civil wrongs committed between individuals not in a pre-existing legal relationship , contract law provides for the creation and enforcement of duties and obligations through a prior agreement between parties. The emergence of quasi-contracts , quasi-torts , and quasi-delicts renders

11495-604: The majority of English-speaking countries, the rules are derived from English contract law which emerged as a result of precedents established by various courts in England over the centuries. Meanwhile, civil law jurisdictions generally derive their contract law from Roman law , although there are differences between German contract law , legal systems inspired by the Napoleonic Code or the Civil Code of Lower Canada (e.g. Québec and Saint Lucia ), and jurisdictions following Roman-Dutch law (e.g. Indonesia and Suriname ) or

11616-565: The obligation. Further, reasonable notice of a contract's terms must be given to the other party prior to their entry into the contract. Written contracts have typically been preferred in common law legal systems. In 1677 England passed the Statute of Frauds which influenced similar statute of frauds laws in the United States and other countries such as Australia. In general, the Uniform Commercial Code as adopted in

11737-405: The offer's terms, which is known as the " mirror image rule ". An offer is defined as a promise that is dependent on a certain act, promise, or forbearance given in exchange for the initial promise An acceptance is simply the assent of the other contracting party or parties to the terms stipulated in the contract. As an offer states the offeror's willingness to be bound to the terms proposed therein,

11858-450: The offeror. Consideration must be lawful for a contract to be binding. Applicable rules in determining if consideration is lawful exist both in case law and in the codes of some common law jurisdictions. The general principles of valid consideration in the common law tradition are that: The insufficiency of past consideration is related to the pre-existing duty rule . For example, in the early English case of Eastwood v. Kenyon [1840],

11979-554: The offeror. In a reward contract, for example, a person who has lost a dog could promise a reward if the dog is found, through publication or orally. The payment could be additionally conditioned on the dog being returned alive. Those who learn of the reward are not required to search for the dog, but if someone finds the dog and delivers it, the promisor is required to pay. On the other hand, advertisements which promise bargains are generally regarded not as offers for unilateral contracts but merely "invitations to treat". Some have criticised

12100-501: The old objects using a special compatibility TLB, which was removed completely in DAO 3.6. The ODBCDirect database engine consists of a workspace object and an errors object. The main differences between this database engine and the Jet database engine are: The ODBC connection objects consist of QueryDef objects and recordset objects. Application programming interface In contrast to

12221-437: The other party to the contract. Contract theory is a large body of legal theory that addresses normative and conceptual questions in contract law. One of the most important questions asked in contract theory is why contracts are enforced. One prominent answer to this question focuses on the economic benefits of enforcing bargains. Another approach, associated with Charles Fried in his book Contract as Promise , maintains that

12342-491: The parties expressly state the opposite. For example, in Rose & Frank Co v JR Crompton & Bros Ltd , an agreement between two business parties was not enforced because an "honour clause" in the document stated "this is not a commercial or legal agreement, but is only a statement of the intention of the parties". In contrast, domestic and social agreements such as those between children and parents are typically unenforceable on

12463-493: The parties have explicitly agreed that breach of that term, no matter what the factual consequences, will entitle the innocent party to terminate the contract for breach; or (5) as a matter of general construction of the contract, the clause must be understood as intended to operate as a condition. In all systems of contract law, the capacity of a variety of natural or juristic persons to enter into contracts, enforce contractual obligations, or have contracts enforced against them

12584-525: The parties to modify the terms governing their obligations to each other. This is reflected in Article 3.1.2 of the Principles of International Commercial Contracts , which states that "a contract is concluded, modified or terminated by the mere agreement of the parties, without any further requirement". Assignments are typically subject to statutory restrictions, particularly with regard to the consent of

12705-517: The principle underlying contemporary negotiable instruments . The hawala system also influenced the development of agency in common law and in civil laws . In Roman law, agents could not act on behalf of other individuals in the formation of binding contracts. On the other hand, Islamic law accepted agency as permissible in not only contract law but in the law of obligations generally, an approach that has since become mainstream in common law, mixed law, and most civil law jurisdictions. Analogously,

12826-614: The programmer from dealing with idiosyncrasies of the graphics display device, and to provide hardware independence if the computer or the display were replaced. The term was introduced to the field of databases by C. J. Date in a 1974 paper called The Relational and Network Approaches: Comparison of the Application Programming Interface . An API became a part of the ANSI/SPARC framework for database management systems . This framework treated

12947-447: The promisee. The Indian Contract Act also codifies examples of when consideration is invalid, for example when it involves marriage or the provision of a public office. The primary criticism of the doctrine of consideration is that it is purely a formality that merely serves to complicate commerce and create legal uncertainty by opening up otherwise simple contracts to scrutiny as to whether the consideration purportedly tendered satisfies

13068-422: The promisee. Forbearance to act, for example, can constitute valid consideration, but only if a legal right is surrendered in the process. Common law jurisdictions require consideration for a simple contract to be binding, but allow contracts by deed to not require consideration. Similarly, under the Uniform Commercial Code , firm offers in most American jurisdictions are valid without consideration if signed by

13189-470: The requirements of the law. While the purpose of the doctrine was ostensibly to protect parties seeking to void oppressive contracts, this is currently accomplished through the use of a sophisticated variety of defences available to the party seeking to void a contract. In practice, the doctrine of consideration has resulted in a phenomenon similar to that of Ḥiyal in Islamic contracts, whereby parties to

13310-442: The result to be used locally as a return value. A modification of the proxy object will also result in a corresponding modification of the remote object. Web APIs are the defined interfaces through which interactions happen between an enterprise and applications that use its assets, which also is a Service Level Agreement (SLA) to specify the functional provider and expose the service path or URL for its API users. An API approach

13431-778: The role of law, the PRC's socialist background, the Japanese/German-based law of the Republic of China on Taiwan , and the English-based common law used in Hong Kong. Consequently, contract law in the Chinese mainland functions as a de facto mixed system. The 2021 civil code provides for the regulation of nominate contracts in a manner similar to that of jurisdictions such as Japan, Germany, France, and Québec. The rules governing contracts vary between jurisdictions. In

13552-438: The sale of a home, the buyer promises to pay the seller $ 200,000 in exchange for the seller's promise to deliver title to the property. Bilateral contracts commonly take place in the daily flow of commercial transactions. Less common are unilateral contracts, in which one party makes a promise, but the other side does not promise anything. In these cases, those accepting the offer are not required to communicate their acceptance to

13673-432: The same overarching purpose of enabling the creation of legally enforceable obligations, they may contain significant differences. Accordingly, many contracts contain a choice of law clause and a forum selection clause to determine the jurisdiction whose system of contract law will govern the contract and the court or other forum in which disputes will be resolved, respectively. Failing express agreement on such matters in

13794-452: The similar OpenJDK project. Judge William Alsup ruled in the Oracle v. Google case that APIs cannot be copyrighted in the U.S. and that a victory for Oracle would have widely expanded copyright protection to a "functional set of symbols" and allowed the copyrighting of simple software commands: To accept Oracle's claim would be to allow anyone to copyright one version of code to carry out

13915-561: The term "represents" in order to avoid claims under the Misrepresentation Act 1967 , while in America the use of "warrants and represents" is relatively common. English courts may weigh parties' emphasis in determining whether a non-contractual statement is enforceable as part of the contract. In the English case of Bannerman v White , the court upheld a rejection by a buyer of hops which had been treated with sulphur since

14036-447: The terms of a contract are so uncertain or incomplete as to elude reasonable interpretation, the parties cannot have reached an agreement in the eyes of the law. An agreement to agree does not constitute a contract, and an inability to agree on key issues, which may include such things as price or safety, may cause an entire contract to fail. However, a court will attempt to give effect to commercial contracts where possible, by construing

14157-401: The theoretical debate in contract is its place within, and relationship to a wider law of obligations . Obligations have traditionally been divided into contracts, which are voluntarily undertaken and owed to a specific person or persons, and obligations in tort which are based on the wrongful infliction of harm to certain protected interests, primarily imposed by the law, and typically owed to

14278-552: The transfer of debt , which was not accepted under Roman law, became widely practiced in medieval European commerce, owing largely to trade with the Muslim world during the Middle Ages. Since the nineteenth century, two distinct traditions of contract law emerged. Jurisdictions that were previously British colonies generally adopted English common law . Other jurisdictions largely adopted the civil law tradition, either inheriting

14399-732: The various legal traditions closer together. In the early 20th century, the United States underwent the " Lochner era ", in which the Supreme Court of the United States struck down economic regulations on the basis of freedom of contract and the Due Process Clause . These decisions were eventually overturned, and the Supreme Court established a deference to legislative statutes and regulations that restrict freedom of contract. The need to prevent discrimination and unfair business practices has placed additional restrictions on

14520-455: Was defined simply as "a set of services available to a programmer for performing certain tasks" by technologist Carl Malamud . The idea of the API was expanded again with the dawn of remote procedure calls and web APIs . As computer networks became common in the 1970s and 80s, programmers wanted to call libraries located not only on their local computers, but on computers located elsewhere. These remote procedure calls were well supported by

14641-399: Was first used in the English case of Smith v Hughes in 1871. Where an offer specifies a particular mode of acceptance, only acceptance communicated via that method will be valid. Contracts may be bilateral or unilateral . A bilateral contract is an agreement in which each of the parties to the contract makes a promise or set of promises to each other. For example, in a contract for

#754245