14 | Numbers in JPQL and Criteria Queries numeric promotion principles. For example, the resulting type of a binary arithmetic operation on an int ... . For example: ABS(-5) is evaluated to 5 ABS(10.7) is evaluated to 10.7 The ABS function takes as ... (%) in Java (which is also supported by ObjectDB as an extension). For example: MOD(11, 3 |
13 | Collections in JPQL and Criteria Queries] EMPTY operator checks whether a specified collection is empty or not. For example: c.languages ... of elements in a specified collection. For example: SIZE(c.languages) is evaluated to the number ... is contained in a specified persistent collection field. For example: 'English' MEMBER OF c |
11 | JPA Persistable Types, its date and time fields are automatically adjusted to the requested mode. For example, fields date1 ... is retrieved from the database. For example, the Arrays.asList method returns an instance of an internal Java ... the original classes and enable transparent activation and transparent persistence. For example |
11 | Privacy Policy infrastructure itself (for example, the duration of a page visit and user actions during page views). Website ... , and single-pixel gifs) that permit the Company, for example, to count users who have visited those pages or opened an email and for other related website statistics (for example, recording the popularity |
11 | JPA Metamodel API by the EntityManager's getMetamodel method (both methods are equivalent). For example, given ... for exploring managed fields and properties (which are referred to as attributes). For example ... on the primary key and the version attributes and the super type. For example: // Get the super type |
11 | UPDATE SET Queries in JPA/JPQL with the database. For example, the EntityManager may not be aware that a cached entity object in ... instances of subclasses). For example, the following three equivalent queries increase the population size ... expressions, separated by commas, are also allowed. For example: UPDATE Country SET population = 0 |
11 | Paths and Types in JPQL and Criteria API. For example - c.capital, where c represents a Country entity object uses the capital persistent field ... is a persistable user class can be extended further by reusing the dot (.) operator. For example, c ... type method. For example, the following criteria expression checks if the type of a specified entity e |
10 | Setting and Tuning of JPA Queries. These methods support the implementation of efficient result paging. For example, if each result ... that has to be applied on all the result objects that the query retrieves. For example, the following query ... all the queries in that scope (unless it is overridden in a more local scope). For example, setting a query |
1 | [ODB1] Chapter 6 - Persistent Objects is not allocated yet. Such an object ID is fixed on commit(). For example: pm.currentTransaction ... . For example, a root with the name "me" can be retrieved with: Person person = (Person)pm ... of the direct interaction with the database, in order to make database programming easier. For example |
1 | [ODB1] Chapter 8 - ObjectDB Server and the restart server commands). For example: > server.exe -client -Xmx256m -port 6666 The specified ... in a comma separated list and using a hyphen (-) to indicate a range. For example, a value "192.18 ... subdirs="20" files="20" diskspace="5m" /> </dir> <dir path="/examples |
