Examples of org.eclipse.persistence.jpa.jpql.tools.model.query.OrExpressionStateObject

org.eclipse.persistence.jpa.jpql.tools.model.query.OrExpressionStateObject

The OR logical operator chains multiple criteria together. A valid operand of an OR operator must be one of: TRUE, FALSE, and NULL. The OR operator has a lower precedence than the AND operator.

NULL represents unknown. Therefore, if one operand is NULL and the other operand is TRUE the result is TRUE, because one TRUE operand is sufficient for a TRUE result. If one operand is NULL and the other operand is either FALSE or NULL, the result is NULL (unknown).

The following table shows how the OR operator is evaluated based on its two operands:

	TRUE	FALSE	NULL
TRUE	TRUE	TRUE	TRUE
FALSE	TRUE	FALSE	NULL
NULL	TRUE	NULL	NULL

BNF: conditional_expression ::= conditional_expression OR conditional_term

@see OrExpression @version 2.4 @since 2.4 @author Pascal Filion

    checkBuilder(builder);


    StateObject rightStateObject = pop();
    StateObject leftStateObject  = pop();


    StateObject stateObject = new OrExpressionStateObject(
      getParent(),
      leftStateObject,
      rightStateObject
    );

    StateObject leftStateObject = stateObject;


    expression.getRightExpression().accept(this);
    StateObject rightStateObject = stateObject;


    OrExpressionStateObject stateObject = new OrExpressionStateObject(
      parent,
      leftStateObject,
      rightStateObject
    );


    stateObject.setExpression(expression);
    this.stateObject = stateObject;
  }

Examples of org.eclipse.persistence.jpa.jpql.tools.model.query.OrExpressionStateObject

Related Classes of org.eclipse.persistence.jpa.jpql.tools.model.query.OrExpressionStateObject