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Hibernate's core ORM functionality
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.engine.query.spi.sql;
import java.util.Map;
import org.hibernate.LockMode;
/**
* Represents a return defined as part of a native sql query which
* names a fetched role.
*
* @author Steve Ebersole
*/
public class NativeSQLQueryJoinReturn extends NativeSQLQueryNonScalarReturn {
private final String ownerAlias;
private final String ownerProperty;
private final int hashCode;
/**
* Construct a return descriptor representing some form of fetch.
*
* @param alias The result alias
* @param ownerAlias The owner's result alias
* @param ownerProperty The owner's property representing the thing to be fetched
* @param propertyResults Any user-supplied column->property mappings
* @param lockMode The lock mode to apply
*/
@SuppressWarnings("unchecked")
public NativeSQLQueryJoinReturn(
String alias,
String ownerAlias,
String ownerProperty,
Map propertyResults,
LockMode lockMode) {
super( alias, propertyResults, lockMode );
this.ownerAlias = ownerAlias;
this.ownerProperty = ownerProperty;
this.hashCode = determineHashCode();
}
private int determineHashCode() {
int result = super.hashCode();
result = 31 * result + ( ownerAlias != null ? ownerAlias.hashCode() : 0 );
result = 31 * result + ( ownerProperty != null ? ownerProperty.hashCode() : 0 );
return result;
}
/**
* Retrieve the alias of the owner of this fetched association.
*
* @return The owner's alias.
*/
public String getOwnerAlias() {
return ownerAlias;
}
/**
* Retrieve the property name (relative to the owner) which maps to
* the association to be fetched.
*
* @return The property name.
*/
public String getOwnerProperty() {
return ownerProperty;
}
@Override
@SuppressWarnings("RedundantIfStatement")
public boolean equals(Object o) {
if ( this == o ) {
return true;
}
if ( o == null || getClass() != o.getClass() ) {
return false;
}
if ( !super.equals( o ) ) {
return false;
}
final NativeSQLQueryJoinReturn that = (NativeSQLQueryJoinReturn) o;
if ( ownerAlias != null ? !ownerAlias.equals( that.ownerAlias ) : that.ownerAlias != null ) {
return false;
}
if ( ownerProperty != null ? !ownerProperty.equals( that.ownerProperty ) : that.ownerProperty != null ) {
return false;
}
return true;
}
@Override
public int hashCode() {
return hashCode;
}
}