- /*
- * Copyright 2001-2004 The Apache Software Foundation.
- *
- * Licensed 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.commons.betwixt.io.id;
-
-
- /** <p>Generates <code>ID</code>'s in numeric sequence.
- * A simple counter is used.
- * Every time that {@link #nextIdImpl} is called,
- * this counter is incremented.</p>
- *
- * <p>By default, the counter starts at zero.
- * A user can set the initial value by using the
- * {@link #SequentialIDGenerator(int start)} constructor.</p>
- *
- * @author <a href="mailto:rdonkin@apache.org">Robert Burrell Donkin</a>
- * @version $Revision: 1.7 $
- */
- public final class SequentialIDGenerator extends AbstractIDGenerator {
-
- /** Counter used to assign <code>ID</code>'s */
- private int counter = 0;
-
- /**
- * Base constructor.
- * Counter starts at zero.
- */
- public SequentialIDGenerator() {}
-
- /**
- * Constructor sets the start value for the counter.
- *
- * <p><strong>Note</strong> since the counter increments
- * before returning the next value,
- * first <code>ID</code> generated will be <em>one more</em>
- * than the given <code>start</code> parameter.</p>
- *
- * @param start start the counting at this value
- */
- public SequentialIDGenerator(int start) {
- this.counter = start;
- }
-
- /**
- * Increment counter and then return value.
- *
- * @return one more than the current counter (converted to a string)
- */
- public String nextIdImpl() {
- return Integer.toString(++counter);
- }
-
- /**
- * Gets the current counter value
- *
- * @return the last ID in the sequence
- */
- public int getCount() {
- return counter;
- }
- }