org.datanucleus.jdo.query
Class BooleanExpressionImpl<T>

java.lang.Object
  org.datanucleus.jdo.query.ExpressionImpl<T>
      org.datanucleus.jdo.query.ComparableExpressionImpl<java.lang.Boolean>
          org.datanucleus.jdo.query.BooleanExpressionImpl<T>

All Implemented Interfaces:

BooleanExpression, ComparableExpression<java.lang.Boolean>, Expression<java.lang.Boolean>

public class BooleanExpressionImpl<T>
extends ComparableExpressionImpl<java.lang.Boolean>
implements BooleanExpression

Implementation of a BooleanExpression

Constructor Summary

BooleanExpressionImpl(java.lang.Class<java.lang.Boolean> cls, java.lang.String name, ExpressionType type)

BooleanExpressionImpl(Expression queryExpr)

BooleanExpressionImpl(PersistableExpression parent, java.lang.String name)

Method Summary

BooleanExpression	and(BooleanExpression expr) Method to return the AND of this expression and the other expression.
BooleanExpression	not() Method to negate this expression.
BooleanExpression	or(BooleanExpression expr) Method to return the OR of this expression and the other expression.

Methods inherited from class org.datanucleus.jdo.query.ComparableExpressionImpl

asc, desc, gt, gt, gteq, gteq, lt, lt, lteq, lteq, max, min

Methods inherited from class org.datanucleus.jdo.query.ExpressionImpl

cast, count, countDistinct, eq, eq, getQueryExpression, instanceOf, isParameter, isVariable, ne, ne

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.datanucleus.query.typesafe.ComparableExpression

asc, desc, gt, gt, gteq, gteq, lt, lt, lteq, lteq, max, min

Methods inherited from interface org.datanucleus.query.typesafe.Expression

cast, count, countDistinct, eq, eq, instanceOf, ne, ne

Constructor Detail

BooleanExpressionImpl

public BooleanExpressionImpl(PersistableExpression parent,
                             java.lang.String name)

BooleanExpressionImpl

public BooleanExpressionImpl(Expression queryExpr)

BooleanExpressionImpl

public BooleanExpressionImpl(java.lang.Class<java.lang.Boolean> cls,
                             java.lang.String name,
                             ExpressionType type)

Method Detail

and

public BooleanExpression and(BooleanExpression expr)

Description copied from interface: BooleanExpression

Method to return the AND of this expression and the other expression.

Specified by:

and in interface BooleanExpression

Parameters:

expr - The other expression

Returns:

The resultant (boolean) expression

not

public BooleanExpression not()

Description copied from interface: BooleanExpression

Method to negate this expression.

Specified by:

not in interface BooleanExpression

Returns:

The negated expression

or

public BooleanExpression or(BooleanExpression expr)

Description copied from interface: BooleanExpression

Method to return the OR of this expression and the other expression.

Specified by:

or in interface BooleanExpression

Parameters:

expr - The other expression

Returns:

The resultant (boolean) expression