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AnnotationTypeTreeNode.java

/*
 * 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.uima.caseditor.editor.outline;

import java.util.ArrayList;
import java.util.List;

import org.apache.uima.cas.Type;
import org.eclipse.core.runtime.IAdaptable;

/**
 * The {@link AnnotationTreeNode} is used to group annotations
 * by their type. Only the {@link TypeGroupedContentProvider} creates
 * {@link AnnotationTreeNode} objects. 
 */
00033 class AnnotationTypeTreeNode implements IAdaptable {

      // annotation type
      private Type type;
      
      private List<AnnotationTreeNode> annotations = new ArrayList<AnnotationTreeNode>();
      
      public AnnotationTypeTreeNode(Type type) {
            this.type = type;
      }
      
      public void add(AnnotationTreeNode annotation) {
            annotations.add(annotation);
      }
      
      public AnnotationTreeNode[] getAnnotations() {
            return annotations.toArray(new AnnotationTreeNode[annotations.size()]);
      }
      
      public void remove(AnnotationTreeNode annotation) {
            annotations.remove(annotation);
      }
      
      @SuppressWarnings("unchecked")
      public Object getAdapter(Class adapter) {
            
            if (Type.class.equals(adapter)) {
                  return type;
            }
            
            return null;
      }
      
      @Override
      public int hashCode() {
            return type.hashCode();
      } 
      
      @Override
      public boolean equals(Object obj) {
            
            if (obj == this) {
                  return true;
            }
            else if (obj instanceof AnnotationTypeTreeNode) {
                  AnnotationTypeTreeNode otherTypeNode = (AnnotationTypeTreeNode) obj;
                  
                  return type.equals(otherTypeNode.type);
            }
            else {
                  return false;
            }
      }
      
      @Override
      public String toString() {
            return type.getShortName() + " #chhildren = " + annotations.size();
      }

      public Object getType() {
            return type;
      }
}

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