Home » JPA » Queries » CriteriaBuilder » nullif(x, y) - JPA CriteriaBuilder's method

nullif(x, y) - JPA CriteriaBuilder's method

Create an expression that tests whether its argument are equal, returning null if they are and the value of the first expression if they are not.
x - expression
y - expression
nullif expression
JPA 2.0

This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
ObjectDB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.