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2

Comparison in JPQL and Criteria API

follow the logic of Java's equals, comparing the content rather than the identity. Date values can be compared by using any comparison operator. Equality operators (=, <>, ==, !=) on date values in
2

javax.persistence.criteria.CriteriaBuilder

of objects as its result. Returns: criteria query object Since: JPA 2.0 Expression<Date> currentDate() Create expression to return current date. Create expression to return current date. Returns: expression for current date Since: JPA 2.0 Expression<Time> currentTime() Create expression to return
2

javax.persistence.Query

instance. Returns: query properties and hints Since: JPA 2.0 LockModeType getLockMode() Get the current lock mode for the query. Get the current lock mode for the query. Returns: lock mode Throws ... position, Date value, TemporalType temporalType) Bind an instance of java.util.Date to a positional
1

Schema Update

side where the up to date classes are located. The following <schema> element demonstrates the supported schema update
1

ORDER BY clause (JPQL / Criteria API)

JPQL expression whose type is comparable (i.e. numbers, strings and date values) and is derived
1

Privacy Policy

(e.g. IP address), unique device identifiers, browser type, browser version, the time and date
1

JPA Annotations for Fields

The way a field of a persistable class is managed by JPA can be set by the following annotations: Additional annotations (and enum) are designated for enum fields: Other additional annotations (and enum) are designated for date and calendar fields: Chapter 2 of the ObjectDB manual explains how to use all the above annotations.
1

JPA Criteria API Queries

expressions are provided in the following page sections: Literals and Dates (literal, nullLiteral
1

Eclipse Public License - v 1.0

of the date such litigation is filed. All Recipient's rights under this Agreement shall terminate
0

javax.jdo.spi.StateManager

- the field number currentValue - the current value of the field Returns: the new value for the field ... instance field - the field number currentValue - the current value of the field Returns: the new ... PersistenceCapable instance field - the field number currentValue - the current value of the field

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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