/**
* Compare the attributes. Return true if they are alike. Assume the passed-in attributes are
* non-null.
*/
private boolean compareAttributeValues(
Object collection1, Object collection2, AbstractSession session) {
ContainerPolicy cp = this.getContainerPolicy();
if (cp.sizeFor(collection1) != cp.sizeFor(collection2)) {
return false;
}
// if they are both empty, go no further...
if (cp.sizeFor(collection1) == 0) {
return true;
}
if (cp.hasOrder()) {
return this.compareAttributeValuesWithOrder(collection1, collection2, session);
} else {
return this.compareAttributeValuesWithoutOrder(collection1, collection2, session);
}
}
/**
* INTERNAL: Build and return the change record that results from comparing the two collection
* attributes.
*/
public ChangeRecord compareForChange(
Object clone, Object backup, ObjectChangeSet owner, AbstractSession session) {
ContainerPolicy cp = this.getContainerPolicy();
Object cloneCollection = this.getRealCollectionAttributeValueFromObject(clone, session);
Object backupCollection = null;
if (owner.isNew()) {
backupCollection = cp.containerInstance(1);
} else {
backupCollection = this.getRealCollectionAttributeValueFromObject(backup, session);
}
if (cp.hasOrder()) {
return this.compareAttributeValuesForChangeWithOrder(
cloneCollection, backupCollection, owner, session);
} else {
return this.compareAttributeValuesForChangeWithoutOrder(
cloneCollection, backupCollection, owner, session);
}
}