1 files changed, 180 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/commands/AClassSubClassesReorientCommand.java b/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/commands/AClassSubClassesReorientCommand.java
new file mode 100644
index 0000000000..cf8a305ad4
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/commands/AClassSubClassesReorientCommand.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany).
+ * 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:
+ *     Martin Fluegge - initial API and implementation
+ * 
+ */
+package org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.commands;
+
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.emf.cdo.dawn.examples.acore.AClass;
+import org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.policies.AcoreBaseItemSemanticEditPolicy;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.gmf.runtime.common.core.command.CommandResult;
+import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
+import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
+
+/**
+ * @generated
+ */
+public class AClassSubClassesReorientCommand extends EditElementCommand
+{
+
+  /**
+   * @generated
+   */
+  private final int reorientDirection;
+
+  /**
+   * @generated
+   */
+  private final EObject referenceOwner;
+
+  /**
+   * @generated
+   */
+  private final EObject oldEnd;
+
+  /**
+   * @generated
+   */
+  private final EObject newEnd;
+
+  /**
+   * @generated
+   */
+  public AClassSubClassesReorientCommand(ReorientReferenceRelationshipRequest request)
+  {
+    super(request.getLabel(), null, request);
+    reorientDirection = request.getDirection();
+    referenceOwner = request.getReferenceOwner();
+    oldEnd = request.getOldRelationshipEnd();
+    newEnd = request.getNewRelationshipEnd();
+  }
+
+  /**
+   * @generated
+   */
+  public boolean canExecute()
+  {
+    if (false == referenceOwner instanceof AClass)
+    {
+      return false;
+    }
+    if (reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE)
+    {
+      return canReorientSource();
+    }
+    if (reorientDirection == ReorientRelationshipRequest.REORIENT_TARGET)
+    {
+      return canReorientTarget();
+    }
+    return false;
+  }
+
+  /**
+   * @generated
+   */
+  protected boolean canReorientSource()
+  {
+    if (!(oldEnd instanceof AClass && newEnd instanceof AClass))
+    {
+      return false;
+    }
+    return AcoreBaseItemSemanticEditPolicy.LinkConstraints
+        .canExistAClassSubClasses_4001(getNewSource(), getOldTarget());
+  }
+
+  /**
+   * @generated
+   */
+  protected boolean canReorientTarget()
+  {
+    if (!(oldEnd instanceof AClass && newEnd instanceof AClass))
+    {
+      return false;
+    }
+    return AcoreBaseItemSemanticEditPolicy.LinkConstraints
+        .canExistAClassSubClasses_4001(getOldSource(), getNewTarget());
+  }
+
+  /**
+   * @generated
+   */
+  protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException
+  {
+    if (!canExecute())
+    {
+      throw new ExecutionException("Invalid arguments in reorient link command"); //$NON-NLS-1$
+    }
+    if (reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE)
+    {
+      return reorientSource();
+    }
+    if (reorientDirection == ReorientRelationshipRequest.REORIENT_TARGET)
+    {
+      return reorientTarget();
+    }
+    throw new IllegalStateException();
+  }
+
+  /**
+   * @generated
+   */
+  protected CommandResult reorientSource() throws ExecutionException
+  {
+    getOldSource().getSubClasses().remove(getOldTarget());
+    getNewSource().getSubClasses().add(getOldTarget());
+    return CommandResult.newOKCommandResult(referenceOwner);
+  }
+
+  /**
+   * @generated
+   */
+  protected CommandResult reorientTarget() throws ExecutionException
+  {
+    getOldSource().getSubClasses().remove(getOldTarget());
+    getOldSource().getSubClasses().add(getNewTarget());
+    return CommandResult.newOKCommandResult(referenceOwner);
+  }
+
+  /**
+   * @generated
+   */
+  protected AClass getOldSource()
+  {
+    return (AClass)referenceOwner;
+  }
+
+  /**
+   * @generated
+   */
+  protected AClass getNewSource()
+  {
+    return (AClass)newEnd;
+  }
+
+  /**
+   * @generated
+   */
+  protected AClass getOldTarget()
+  {
+    return (AClass)oldEnd;
+  }
+
+  /**
+   * @generated
+   */
+  protected AClass getNewTarget()
+  {
+    return (AClass)newEnd;
+  }
+}