Initial import from SVN

1 files changed, 115 insertions, 0 deletions

diff --git a/projects/net.wotonomy.test/src/main/java/net/wotonomy/test/TestDataSource.java b/projects/net.wotonomy.test/src/main/java/net/wotonomy/test/TestDataSource.java
new file mode 100644
index 0000000..1d36bef
--- /dev/null
+++ b/projects/net.wotonomy.test/src/main/java/net/wotonomy/test/TestDataSource.java
@@ -0,0 +1,115 @@
+package net.wotonomy.test;
+
+import net.wotonomy.control.EOClassDescription;
+import net.wotonomy.control.EODataSource;
+import net.wotonomy.control.EOEditingContext;
+import net.wotonomy.control.EOFetchSpecification;
+import net.wotonomy.foundation.NSArray;
+
+/**
+* A custom DataSource that works with 
+* the datastore package for persistence.
+*/
+public class TestDataSource extends EODataSource
+{
+    private EOEditingContext context;
+    private Object source;
+    private String key;
+    
+	public TestDataSource()
+	{
+        this( Test.editingContext );
+	}
+    
+	public TestDataSource( EOEditingContext aContext )
+	{
+        context = aContext;
+	}
+    
+    public EOEditingContext editingContext()
+    {
+        return context;
+    }
+	
+    /**
+    * This implementation does nothing.
+    */
+    public void insertObject ( Object anObject )
+	{
+        // creates are handled by createObject().
+	}
+
+    /**
+    * Deletes the specified object from this data source.
+    */
+    public void deleteObject ( Object anObject )
+	{
+        editingContext().deleteObject( anObject );
+	}
+
+    /**
+    * Returns a List containing the objects in this
+    * data source.  This implementation returns all
+	* TestObjects that have been persisted to the 
+	* datastore in the data directory.
+    */
+    public NSArray fetchObjects ()
+    {
+        if ( source == null )
+        {
+            NSArray result = editingContext().objectsWithFetchSpecification( 
+                new EOFetchSpecification() );
+            if ( result.size() > 0 )
+            {
+                result = new NSArray( result.objectAtIndex( 0 ) );
+//result.add( result.objectAtIndex( 0 ) );
+            }
+            return result;
+        }
+        else
+        {
+            return new NSArray( 
+                ((TestObject)source).getChildList() );
+        }
+    }
+
+    /**
+    * Returns a data source that is capable of
+    * manipulating objects of the type returned by 
+    * applying the specified key to objects 
+    * vended by this data source.
+    * @see #qualifyWithRelationshipKey
+    */
+    public EODataSource 
+        dataSourceQualifiedByKey ( String aKey )
+	{
+		return new TestDataSource( editingContext() );	
+	}
+
+    /**
+    * Restricts this data source to vend those 
+    * objects that are associated with the specified 
+    * key on the specified object.
+    */
+    public void 
+        qualifyWithRelationshipKey ( 
+        String aKey, Object anObject )
+	{
+        key = aKey;
+        source = anObject;
+	}
+
+    /**
+    * Returns the description of the class of the
+    * objects that is vended by this data source,
+    * or null if this cannot be determined.
+	* This implementation returns TestObject.
+    */
+    public EOClassDescription 
+        classDescriptionForObjects ()
+    {
+        return EOClassDescription.classDescriptionForClass( 
+                        TestObject.class );
+    }
+
+}