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StringList.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.jcas.cas;

import org.apache.uima.cas.CASRuntimeException;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.JCasRegistry;

00026 public class StringList extends org.apache.uima.jcas.cas.TOP {

00028       public final static int typeIndexID = JCasRegistry.register(StringList.class);

      public final static int type = typeIndexID;

00032       public int getTypeIndexID() {
            return typeIndexID;
      }

      // Never called.
      protected StringList() { // Disable default constructor
      }

      /** Internal - Constructor used by generator */
00041       public StringList(int addr, TOP_Type type) {
            super(addr, type);
      }

      public StringList(JCas jcas) {
            super(jcas);
      }

      public String getNthElement(int i) {
            if (this instanceof EmptyStringList) {
                  CASRuntimeException casEx = new CASRuntimeException(
                              CASRuntimeException.JCAS_GET_NTH_ON_EMPTY_LIST, new String[] { "EmptyStringList" });
                  throw casEx;
            }

            if (i < 0) {
                  CASRuntimeException casEx = new CASRuntimeException(
                              CASRuntimeException.JCAS_GET_NTH_NEGATIVE_INDEX, new String[] { Integer.toString(i) });
                  throw casEx;
            }

            int originali = i;
            StringList cg = this;
            for (;; i--) {
                  if (cg instanceof EmptyStringList) {
                        CASRuntimeException casEx = new CASRuntimeException(
                                    CASRuntimeException.JCAS_GET_NTH_PAST_END, new String[] { Integer.toString(originali) });
                        throw casEx;
                  }
                  NonEmptyStringList c = (NonEmptyStringList) cg;
                  if (i == 0)
                        return c.getHead();
                  cg = c.getTail();
            }
      }
}

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