1 files changed, 109 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/internal/common/model/CDOClassInfoImpl.java b/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/internal/common/model/CDOClassInfoImpl.java
new file mode 100644
index 0000000000..64f94ea7d1
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/internal/common/model/CDOClassInfoImpl.java
@@ -0,0 +1,109 @@
+/**
+ * Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.internal.common.model;
+
+import org.eclipse.emf.cdo.common.model.CDOClassInfo;
+import org.eclipse.emf.cdo.common.model.CDOModelUtil;
+
+import org.eclipse.emf.common.notify.Notifier;
+import org.eclipse.emf.common.notify.impl.AdapterImpl;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EStructuralFeature;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Eike Stepper
+ */
+public class CDOClassInfoImpl extends AdapterImpl implements CDOClassInfo
+{
+  private EStructuralFeature[] allPersistentFeatures;
+
+  private int[] featureIDMappings;
+
+  public CDOClassInfoImpl()
+  {
+  }
+
+  @Override
+  public boolean isAdapterForType(Object type)
+  {
+    return type == CDOClassInfo.class;
+  }
+
+  @Override
+  public void setTarget(Notifier newTarget)
+  {
+    init((EClass)newTarget);
+    super.setTarget(newTarget);
+  }
+
+  public EClass getEClass()
+  {
+    return (EClass)getTarget();
+  }
+
+  public boolean isResource()
+  {
+    return CDOModelUtil.isResource(getEClass());
+  }
+
+  public boolean isResourceFolder()
+  {
+    return CDOModelUtil.isResourceFolder(getEClass());
+  }
+
+  public boolean isResourceNode()
+  {
+    return CDOModelUtil.isResourceNode(getEClass());
+  }
+
+  public EStructuralFeature[] getAllPersistentFeatures()
+  {
+    return allPersistentFeatures;
+  }
+
+  public int getFeatureIndex(EStructuralFeature feature)
+  {
+    int featureID = getEClass().getFeatureID(feature);
+    return getFeatureIndex(featureID);
+  }
+
+  public int getFeatureIndex(int featureID)
+  {
+    return featureIDMappings[featureID];
+  }
+
+  private void init(EClass eClass)
+  {
+    int maxID = 0;
+    List<EStructuralFeature> features = new ArrayList<EStructuralFeature>();
+    for (EStructuralFeature feature : eClass.getEAllStructuralFeatures())
+    {
+      if (!feature.isTransient())
+      {
+        features.add(feature);
+        int featureID = eClass.getFeatureID(feature);
+        maxID = Math.max(maxID, featureID);
+      }
+    }
+
+    allPersistentFeatures = features.toArray(new EStructuralFeature[features.size()]);
+    featureIDMappings = new int[maxID + 1];
+    for (int i = 0; i < allPersistentFeatures.length; i++)
+    {
+      EStructuralFeature feature = allPersistentFeatures[i];
+      int featureID = eClass.getFeatureID(feature);
+      featureIDMappings[featureID] = i;
+    }
+  }
+}