sequencemanager.java

一个很好的开源项目管理系统源代码

/*

 */
package net.java.workeffort.infrastructure.sequence;

import java.util.Map;

/**
 * The sequence manager which hands out sequences.
 * <p>
 * The map of sequences is populated using Spring IOC where the key is a
 * sequenceName and the value is an ISequence object
 * <p>
 * Invoked as:
 * <code> SequenceManager.getSequence(sequenceName).getNextId() </code>
 * @author Antony Joseph
 */
public class SequenceManager {
    // populated by spring.
    private static Map sequences;

    public static ISequence getSequence(String name) {
        ISequence sequence = (ISequence) sequences.get(name);
        if (sequence != null)
            return sequence;
        else
            throw new IllegalStateException(
                    "Could not find sequence generator:" + name);
    }

    /**
     * @return Returns the map of sequences
     */
    public Map getSequences() {
        return sequences;
    }

    /**
     * @param map The map to set. IOC
     */
    public void setSequences(Map map) {
        sequences = map;
    }

}