[Hibernate-commits] Hibernate Code SVN: r9637 - trunk/Hibernate3/src/org/hibernate/transform

[<hib...@li...>]

Author: max...@jb...
Date: 2006-03-16 09:26:38 -0500 (Thu, 16 Mar 2006)
New Revision: 9637

Added:
   trunk/Hibernate3/src/org/hibernate/transform/AliasToBeanConstructorResultTransformer.java
   trunk/Hibernate3/src/org/hibernate/transform/ToListResultTransformer.java
   trunk/Hibernate3/src/org/hibernate/transform/Transformers.java
Log:
HHH-38 Add setResultClass or similar to Criteria and HQL
HHH-332 Add ResultTransformer support for HQL
HHH-587 Add ResultTransformer for all query methods (HQL, Criteria & SQL)

Added: trunk/Hibernate3/src/org/hibernate/transform/AliasToBeanConstructorResultTransformer.java
===================================================================
--- trunk/Hibernate3/src/org/hibernate/transform/AliasToBeanConstructorResultTransformer.java	2006-03-16 14:14:48 UTC (rev 9636)
+++ trunk/Hibernate3/src/org/hibernate/transform/AliasToBeanConstructorResultTransformer.java	2006-03-16 14:26:38 UTC (rev 9637)
@@ -0,0 +1,33 @@
+package org.hibernate.transform;
+
+import java.lang.reflect.Constructor;
+import java.util.List;
+
+import org.hibernate.QueryException;
+
+public class AliasToBeanConstructorResultTransformer implements ResultTransformer {
+
+	private Constructor constructor;
+
+	public AliasToBeanConstructorResultTransformer(Constructor constructor) {
+		this.constructor = constructor;
+	}
+	
+	public Object transformTuple(Object[] tuple, String[] aliases) {
+		try {
+			return constructor.newInstance( tuple );
+		}
+		catch ( Exception e ) {
+			throw new QueryException( 
+					"could not instantiate: " + 
+					constructor.getDeclaringClass().getName(), 
+					e );
+		}
+	}
+
+	public List transformList(List collection) {
+		return collection;
+	}
+
+	
+}

Added: trunk/Hibernate3/src/org/hibernate/transform/ToListResultTransformer.java
===================================================================
--- trunk/Hibernate3/src/org/hibernate/transform/ToListResultTransformer.java	2006-03-16 14:14:48 UTC (rev 9636)
+++ trunk/Hibernate3/src/org/hibernate/transform/ToListResultTransformer.java	2006-03-16 14:26:38 UTC (rev 9637)
@@ -0,0 +1,20 @@
+package org.hibernate.transform;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class ToListResultTransformer implements ResultTransformer {
+
+	public static final ResultTransformer INSTANCE = new ToListResultTransformer();
+
+	private ToListResultTransformer() {}
+	
+	public Object transformTuple(Object[] tuple, String[] aliases) {
+		return Arrays.asList(tuple);
+	}
+
+	public List transformList(List collection) {
+		return collection;
+	}
+
+}

Added: trunk/Hibernate3/src/org/hibernate/transform/Transformers.java
===================================================================
--- trunk/Hibernate3/src/org/hibernate/transform/Transformers.java	2006-03-16 14:14:48 UTC (rev 9636)
+++ trunk/Hibernate3/src/org/hibernate/transform/Transformers.java	2006-03-16 14:26:38 UTC (rev 9637)
@@ -0,0 +1,25 @@
+package org.hibernate.transform;
+
+final public class Transformers {
+
+	private Transformers() {}
+	
+	/**
+	 * Each row of results is a <tt>Map</tt> from alias to values/entities
+	 */
+	public static final ResultTransformer ALIAS_TO_ENTITY_MAP = new AliasToEntityMapResultTransformer();
+
+	/**
+	 * Each row of results is a <tt>List</tt> 
+	 */
+	public static final ResultTransformer TO_LIST = ToListResultTransformer.INSTANCE;
+	
+	/**
+	 * Creates a resulttransformer that will inject aliased values into 
+	 * instances of Class via property methods or fields.
+	 */
+	public static ResultTransformer aliasToBean(Class target) {
+		return new AliasToBeanResultTransformer(target);
+	}
+	
+}