com.solarmetric.rd.kodo.query.exp
Class ContainsExpression

java.lang.Object
  |
  +--com.solarmetric.rd.kodo.query.exp.InMemoryExpression
        |
        +--com.solarmetric.rd.kodo.query.exp.ContainsExpression

All Implemented Interfaces:

Expression

Direct Known Subclasses:

ContainsKeyExpression, ContainsValueExpression

public class ContainsExpression

extends InMemoryExpression

Tests that a Collection contains a value.

Constructor Summary

ContainsExpression(com.solarmetric.rd.kodo.query.exp.InMemoryValue val1, com.solarmetric.rd.kodo.query.exp.InMemoryValue val2)
Constructor.

Method Summary

protected boolean	eval(java.lang.Object candidate, java.lang.Object orig, com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm, java.util.Map params) Evaluate the expression for the given context candidate and original candidate.
protected java.util.Collection	getCollection(com.solarmetric.rd.kodo.query.exp.InMemoryValue val, java.lang.Object candidate, java.lang.Object orig, com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm, java.util.Map params) Return the container collection for the given value.

Methods inherited from class com.solarmetric.rd.kodo.query.exp.InMemoryExpression

evaluate, order

Methods inherited from class java.lang.Object

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

Constructor Detail

ContainsExpression

public ContainsExpression(com.solarmetric.rd.kodo.query.exp.InMemoryValue val1,
                          com.solarmetric.rd.kodo.query.exp.InMemoryValue val2)

Constructor.

Parameters:

val1 - the container value

val2 - the containee to test

Method Detail

eval

protected boolean eval(java.lang.Object candidate,
                       java.lang.Object orig,
                       com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm,
                       java.util.Map params)

Description copied from class: InMemoryExpression

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

Overrides:

eval in class InMemoryExpression

getCollection

protected java.util.Collection getCollection(com.solarmetric.rd.kodo.query.exp.InMemoryValue val,
                                             java.lang.Object candidate,
                                             java.lang.Object orig,
                                             com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm,
                                             java.util.Map params)

Return the container collection for the given value. By defaults, eval's the value and casts the result to a collection.