oracle.toplink.ejb.cmp
Class EJBCollectionHelper

java.lang.Object
  oracle.toplink.ejb.cmp.EJBCollectionHelper

Direct Known Subclasses:

EJBCollectionHelper

public class EJBCollectionHelper
extends java.lang.Object

Constructor Summary

EJBCollectionHelper()
EJBIndexer constructor comment.

Method Summary

static boolean	contains(javax.ejb.EJBObject ejbObject, java.util.Vector vector) With vectors of EJBObjects you cannot use the regular contains() method since this will use the .equals() method for comparing EJBObjects which is not valid - isIdentical should be used instead.
static int	indexOf(javax.ejb.EJBObject ejbObject, java.util.Vector vector) When dealing with collections of EJBObjects, it is wrong to use standard Vector methods such as indexOf() because these use .equals insead of the ejb method .isIdentical().
static boolean	remove(javax.ejb.EJBObject ejbObject, java.util.Vector vector) With vectors of EJBObjects you cannot use the regular contains() method since this will use the .equals() method for comparing EJBObjects which is not valid - isIdentical should be used instead.

Methods inherited from class java.lang.Object

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

Constructor Detail

EJBCollectionHelper

public EJBCollectionHelper()

EJBIndexer constructor comment.

Method Detail

contains

public static boolean contains(javax.ejb.EJBObject ejbObject,
                               java.util.Vector vector)

With vectors of EJBObjects you cannot use the regular contains() method since this will use the .equals() method for comparing EJBObjects which is not valid - isIdentical should be used instead.

Parameters:

ejbObject - javax.ejb.EJBObject

vector - java.util.Vector

indexOf

public static int indexOf(javax.ejb.EJBObject ejbObject,
                          java.util.Vector vector)

When dealing with collections of EJBObjects, it is wrong to use standard Vector methods such as indexOf() because these use .equals insead of the ejb method .isIdentical(). This method will return the index of the given ejbObject within the given collection. If isIdentical fails for all elements of the collection, a value of -1 is returned. (This is what Vector does also).

Parameters:

ejbObject - javax.ejb.EJBObject

vector - java.util.Vector

Returns:

int

remove

public static boolean remove(javax.ejb.EJBObject ejbObject,
                             java.util.Vector vector)

With vectors of EJBObjects you cannot use the regular contains() method since this will use the .equals() method for comparing EJBObjects which is not valid - isIdentical should be used instead.

Parameters:

ejbObject - javax.ejb.EJBObject

vector - java.util.Vector