Author: aadamchik
Date: Mon Nov 27 19:07:00 2006
New Revision: 479867

URL: http://svn.apache.org/viewvc?view=rev&rev=479867
Log:
CAY-712: Allow modifying objects in validate* methods
(fix for 2.0 branch)

Added:
    
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/unit/util/ValidationDelegate.java
Modified:
    
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/cayenne/java/org/apache/cayenne/access/ObjectStoreGraphDiff.java
    
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/art/Artist.java
    
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/access/DataContextValidationTst.java

Modified: 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/cayenne/java/org/apache/cayenne/access/ObjectStoreGraphDiff.java
URL: 
http://svn.apache.org/viewvc/incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/cayenne/java/org/apache/cayenne/access/ObjectStoreGraphDiff.java?view=diff&rev=479867&r1=479866&r2=479867
==============================================================================
--- 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/cayenne/java/org/apache/cayenne/access/ObjectStoreGraphDiff.java
 (original)
+++ 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/cayenne/java/org/apache/cayenne/access/ObjectStoreGraphDiff.java
 Mon Nov 27 19:07:00 2006
@@ -20,6 +20,7 @@
 package org.apache.cayenne.access;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
@@ -67,6 +68,11 @@
         ValidationResult result = new ValidationResult();
         boolean noop = true;
 
+        // build a new collection for validation as validation methods may 
result in
+        // ObjectStore modifications
+
+        Collection objectsToValidate = null;
+
         Iterator it = getChangesByObjectId().entrySet().iterator();
         while (it.hasNext()) {
 
@@ -74,10 +80,21 @@
 
             if (!((ObjectDiff) entry.getValue()).isNoop()) {
 
-                noop = false;
+                if (noop) {
+                    noop = false;
+                    objectsToValidate = new ArrayList();
+                }
 
                 // accessing objectMap directly to avoid unneeded 
synchronization.
-                DataObject object = (DataObject) 
objectStore.getNodeNoSync(entry.getKey());
+                
objectsToValidate.add(objectStore.getNodeNoSync(entry.getKey()));
+            }
+        }
+
+        if (objectsToValidate != null) {
+            Iterator validationIt = objectsToValidate.iterator();
+            while (validationIt.hasNext()) {
+                DataObject object = (DataObject) validationIt.next();
+
                 switch (object.getPersistenceState()) {
                     case PersistenceState.NEW:
                         object.validateForInsert(result);
@@ -90,10 +107,10 @@
                         break;
                 }
             }
-        }
-
-        if (result.hasFailures()) {
-            throw new ValidationException(result);
+            
+            if (result.hasFailures()) {
+                throw new ValidationException(result);
+            }
         }
 
         return noop;

Modified: 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/art/Artist.java
URL: 
http://svn.apache.org/viewvc/incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/art/Artist.java?view=diff&rev=479867&r1=479866&r2=479867
==============================================================================
--- 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/art/Artist.java
 (original)
+++ 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/art/Artist.java
 Mon Nov 27 19:07:00 2006
@@ -1,10 +1,12 @@
 package org.apache.art;
 
 import org.apache.art.auto._Artist;
+import org.apache.cayenne.unit.util.ValidationDelegate;
 import org.apache.cayenne.validation.ValidationResult;
 
 public class Artist extends _Artist {
 
+    protected transient ValidationDelegate validationDelegate;
     protected boolean validateForSaveCalled;
 
     public boolean isValidateForSaveCalled() {
@@ -15,8 +17,15 @@
         validateForSaveCalled = false;
     }
 
+    public void setValidationDelegate(ValidationDelegate validationDelegate) {
+        this.validationDelegate = validationDelegate;
+    }
+
     public void validateForSave(ValidationResult validationResult) {
         validateForSaveCalled = true;
+        if (validationDelegate != null) {
+            validationDelegate.validateForSave(this, validationResult);
+        }
         super.validateForSave(validationResult);
     }
 }

Modified: 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/access/DataContextValidationTst.java
URL: 
http://svn.apache.org/viewvc/incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/access/DataContextValidationTst.java?view=diff&rev=479867&r1=479866&r2=479867
==============================================================================
--- 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/access/DataContextValidationTst.java
 (original)
+++ 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/access/DataContextValidationTst.java
 Mon Nov 27 19:07:00 2006
@@ -17,11 +17,14 @@
  *  under the License.
  ****************************************************************/
 
-
 package org.apache.cayenne.access;
 
 import org.apache.art.Artist;
+import org.apache.art.Painting;
+import org.apache.cayenne.query.SelectQuery;
 import org.apache.cayenne.unit.CayenneTestCase;
+import org.apache.cayenne.unit.util.ValidationDelegate;
+import org.apache.cayenne.validation.ValidationResult;
 
 /**
  * @author Andrus Adamchik
@@ -54,5 +57,36 @@
         a2.setArtistName("a2");
         context.commitChanges();
         assertFalse(a2.isValidateForSaveCalled());
+    }
+
+    public void testValidationModifyingContext() throws Exception {
+        deleteTestData();
+
+        ValidationDelegate delegate = new ValidationDelegate() {
+
+            public void validateForSave(Object object, ValidationResult 
validationResult) {
+
+                Artist a = (Artist) object;
+                Painting p = (Painting) 
a.getObjectContext().newObject(Painting.class);
+                p.setPaintingTitle("XXX");
+                p.setToArtist(a);
+            }
+        };
+
+        DataContext context = createDataContext();
+
+        context.setValidatingObjectsOnCommit(true);
+        Artist a1 = (Artist) context.newObject(Artist.class);
+        a1.setValidationDelegate(delegate);
+        a1.setArtistName("a1");
+
+        // add another artist to ensure that modifying context works when more 
than one
+        // object is committed
+        Artist a2 = (Artist) context.newObject(Artist.class);
+        a2.setValidationDelegate(delegate);
+        a2.setArtistName("a2");
+        context.commitChanges();
+
+        assertEquals(2, context.performQuery(new 
SelectQuery(Painting.class)).size());
     }
 }

Added: 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/unit/util/ValidationDelegate.java
URL: 
http://svn.apache.org/viewvc/incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/unit/util/ValidationDelegate.java?view=auto&rev=479867
==============================================================================
--- 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/unit/util/ValidationDelegate.java
 (added)
+++ 
incubator/cayenne/main/branches/STABLE-2.0/cayenne/cayenne-java/src/tests/java/org/apache/cayenne/unit/util/ValidationDelegate.java
 Mon Nov 27 19:07:00 2006
@@ -0,0 +1,31 @@
+/*****************************************************************
+ *   Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ ****************************************************************/
+package org.apache.cayenne.unit.util;
+
+import org.apache.cayenne.validation.ValidationResult;
+
+/**
+ * A callback interface used by unit tests to implement custom validation 
logic.
+ * 
+ * @author Andrus Adamchik
+ */
+public interface ValidationDelegate {
+
+    void validateForSave(Object object, ValidationResult validationResult);
+}


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