org.hibernate.transform: public final class: RootEntityResultTransformer

org.hibernate.transform
public final class: RootEntityResultTransformer [javadoc | source]

java.lang.Object
   org.hibernate.transform.BasicTransformerAdapter
      org.hibernate.transform.RootEntityResultTransformer

All Implemented Interfaces:
Serializable, ResultTransformer

ResultTransformer implementation which limits the result tuple to only the "root entity".

Since this transformer is stateless, all instances would be considered equal. So for optimization purposes we limit it to a single, singleton instance .

author: Gavin - King

author: Steve - Ebersole

Field Summary
public static final RootEntityResultTransformer	INSTANCE

Constructor:
public RootEntityResultTransformer() { } Instantiate RootEntityResultTransformer.

Constructor:

 public RootEntityResultTransformer() {

}

Instantiate RootEntityResultTransformer.

Method from org.hibernate.transform.RootEntityResultTransformer Summary:
equals, hashCode, transformTuple

Methods from org.hibernate.transform.BasicTransformerAdapter:
transformList, transformTuple

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.hibernate.transform.RootEntityResultTransformer Detail:
public boolean equals(Object other) { // todo : we can remove this once the deprecated ctor can be made private... return other != null && RootEntityResultTransformer.class.isInstance( other ); }
public int hashCode() { // todo : we can remove this once the deprecated ctor can be made private... return RootEntityResultTransformer.class.getName().hashCode(); }
public Object transformTuple(Object[] tuple, String[] aliases) { return tuple[ tuple.length-1 ]; } Return just the root entity from the row tuple.

Method from org.hibernate.transform.RootEntityResultTransformer Detail:

 public boolean equals(Object other) {
		// todo : we can remove this once the deprecated ctor can be made private...
		return other != null && RootEntityResultTransformer.class.isInstance( other );
}

 public int hashCode() {
		// todo : we can remove this once the deprecated ctor can be made private...
		return RootEntityResultTransformer.class.getName().hashCode();
}

 public Object transformTuple(Object[] tuple,
    String[] aliases) {
		return tuple[ tuple.length-1 ];
}

Return just the root entity from the row tuple.