Index: src/main/java/org/geotools/process/raster/Raster2VectorFactory.java
===================================================================
--- src/main/java/org/geotools/process/raster/Raster2VectorFactory.java	(revision 33055)
+++ src/main/java/org/geotools/process/raster/Raster2VectorFactory.java	(working copy)
@@ -39,6 +39,7 @@
 import org.geotools.process.Process;
 import org.geotools.process.ProcessFactory;
 import org.geotools.process.impl.AbstractProcess;
+import org.geotools.process.impl.AbstractProcessFactory;
 import org.geotools.text.Text;
 import org.geotools.util.NullProgressListener;
 import org.geotools.util.SubProgressListener;
@@ -68,7 +69,7 @@
  * 
  * @author Michael Bedward
  */
-public class Raster2VectorFactory implements ProcessFactory {
+public class Raster2VectorFactory extends AbstractProcessFactory{
 
 	public Process create() {
 		return new AbstractProcess(this){
Index: src/main/java/org/geotools/process/impl/AbstractProcessFactory.java
===================================================================
--- src/main/java/org/geotools/process/impl/AbstractProcessFactory.java	(revision 33055)
+++ src/main/java/org/geotools/process/impl/AbstractProcessFactory.java	(working copy)
@@ -16,6 +16,10 @@
  */
 package org.geotools.process.impl;
 
+import java.awt.RenderingHints.Key;
+import java.util.Collections;
+import java.util.Map;
+
 import org.geotools.process.ProcessFactory;
 
 /**
@@ -33,5 +37,20 @@
         }
         return factoryName;
     }
+
+    /** 
+     * Default Implementation return true
+     */
+    public boolean isAvailable() {
+        return true;
+    }
+
+    /**
+     * The default implementation returns an empty map.
+     */
+    public Map<Key, ?> getImplementationHints() {
+        return Collections.EMPTY_MAP;
+    }
     
+    
 }
Index: src/main/java/org/geotools/process/Processors.java
===================================================================
--- src/main/java/org/geotools/process/Processors.java	(revision 33055)
+++ src/main/java/org/geotools/process/Processors.java	(working copy)
@@ -73,7 +73,7 @@
      * 
      * @return Set of ProcessFactory
      */
-    public static Set<ProcessFactory> getProcessFactories() {
+    public synchronized static Set<ProcessFactory> getProcessFactories() {
     	return new LazySet<ProcessFactory>(getServiceRegistry().getServiceProviders(
         		ProcessFactory.class, null, null));
     }
Index: src/main/java/org/geotools/process/ProcessFactory.java
===================================================================
--- src/main/java/org/geotools/process/ProcessFactory.java	(revision 33055)
+++ src/main/java/org/geotools/process/ProcessFactory.java	(working copy)
@@ -19,6 +19,7 @@
 import java.util.Map;
 
 import org.geotools.data.Parameter;
+import org.geotools.factory.OptionalFactory;
 import org.opengis.util.InternationalString;
 
 /**
@@ -26,7 +27,7 @@
  *
  * @author gdavis
  */
-public interface ProcessFactory {
+public interface ProcessFactory extends OptionalFactory{
 	
     /**
      * Unique name (non human readable) that can be used to