org.apache.openjpa.kernel.exps
Class BindVariableAndExpression

java.lang.Object
  org.apache.openjpa.kernel.exps.Exp
      org.apache.openjpa.kernel.exps.AndExpression
          org.apache.openjpa.kernel.exps.BindVariableAndExpression

All Implemented Interfaces:

Serializable, Expression

 class BindVariableAndExpression
extends AndExpression

Any contains(var) expression must be followed by at least one AND clause using the variable 'var'. This expression type represents one of those and AND clauses. It is responsible for evaluating the right subexpression for every possible value of the variable.

Author:

Abe White

Constructor Summary

BindVariableAndExpression(BindVariableExpression var, Exp exp)
Constructor.

Method Summary

protected boolean	eval(Collection candidates, StoreContext ctx, Object[] params) Evaluate the expression for the given group.
protected boolean	eval(Object candidate, Object orig, StoreContext ctx, Object[] params) Evaluate the expression for the given context candidate and original candidate.

Methods inherited from class org.apache.openjpa.kernel.exps.AndExpression

acceptVisit, getExpression1, getExpression2

Methods inherited from class org.apache.openjpa.kernel.exps.Exp

evaluate, evaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

BindVariableAndExpression

public BindVariableAndExpression(BindVariableExpression var,
                                 Exp exp)

Constructor. Provide expression binding the variable and the expression it is AND'd with.

Method Detail

eval

protected boolean eval(Object candidate,
                       Object orig,
                       StoreContext ctx,
                       Object[] params)

Description copied from class: Exp

Evaluate the expression for the given context candidate and original candidate.

Overrides:

eval in class AndExpression

eval

protected boolean eval(Collection candidates,
                       StoreContext ctx,
                       Object[] params)

Description copied from class: Exp

Evaluate the expression for the given group.

Overrides:

eval in class AndExpression