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Tutorial
6

Step 2: Entity Class and Persistence Unit

; import java.sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue ... Long id; private String name; private Date signingDate; // Constructors: public ... ; this.signingDate = new Date(System.currentTimeMillis()); } // String Representation: @Override
Tutorial
6

Step 2: Entity Class and Persistence Unit

with the following code: package guest; import java.io.Serializable; import java.sql.Date; import javax ... ; private Date signingDate; // Constructors: public Guest() { } public Guest(String name) { this.name = name; this.signingDate = new Date(System.currentTimeMillis
JPA Doc
6

currentDate()

Method javax.persistence.criteria.CriteriaBuilder Expression<Date> currentDate() Create expression to return current date. Returns: expression for current date Since: JPA 2.0
Manual
5

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
JDO Doc
4

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
JDO Doc
4

setFilter(filter)

classes are valid. Equality and ordering comparisons of Date fields and Date parameters are valid. White ... for the evaluation of the current set of variable values. Other values for variables
Manual
4

Locking in JPA

another EntityManager) since it was retrieved by the current updater. Optimistic locking ... another EntityManager instance) currently holds a PESSIMISTIC_WRITE lock on that database object. A PESSIMISTIC_WRITE lock request fails if another user currently holds either a PESSIMISTIC_WRITE lock or
Result
3

Apache License, Version 2.0, January 2004

to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution
JPA Doc
3

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.
Manual
3

JPA Criteria API Queries

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