/**
* INTERNAL: Return if the query is equal to the other. This is used to allow dynamic expression
* query SQL to be cached.
*/
public boolean equals(Object object) {
if (this == object) {
return true;
}
if (!super.equals(object)) {
return false;
}
ReadAllQuery query = (ReadAllQuery) object;
if (!getContainerPolicy().equals(query.getContainerPolicy())) {
return false;
}
return true;
}
/**
* INTERNAL: Select all objects for an interface descriptor. This is accomplished by selecting for
* all of the concrete classes and then merging the objects.
*
* @return Vector containing all objects.
* @exception DatabaseException - an error has occurred on the database.
*/
public Object selectAllObjectsUsingMultipleTableSubclassRead(ReadAllQuery query)
throws DatabaseException {
org.eclipse.persistence.internal.queries.ContainerPolicy containerPolicy =
query.getContainerPolicy();
Object objects = containerPolicy.containerInstance(1);
for (Enumeration childDescriptors = getChildDescriptors().elements();
childDescriptors.hasMoreElements(); ) {
ClassDescriptor descriptor = (ClassDescriptor) childDescriptors.nextElement();
objects =
containerPolicy.concatenateContainers(
objects, descriptor.getInterfacePolicy().selectAllObjects(query));
}
return objects;
}