commobjectbuffer.java

来自「移动短信网关接口源程序框架」· Java 代码 · 共 42 行

package com.grima.smsp.communication;

/**
 * <p>Title: mobileGateWay</p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: gramsoft</p>
 * @author lee
 * @version 1.0
 */
import java.util.Vector;
public class CommObjectBuffer {
  private final Class objType;
  private final Vector objStack ;
  public CommObjectBuffer(Class type) {
    this.objType = type;
    objStack = new Vector();
  }
  public synchronized Object getInstance() {
    if (objStack.isEmpty()) {
      return null;
    }else {
      Object result = objStack.firstElement();
      objStack.removeElementAt(0);
      return result;
    }
  }
  public synchronized void addInstance(Object obj)throws Exception {
    if (objType.isInstance(obj)) {
      objStack.addElement(obj);
    }else {
      throw new Exception("error:不能添加给类型");
    }
  }
  public boolean  isBufferEmpty (){
    return objStack.isEmpty();
  }
  public int getObjBufferSize() {
    return objStack.size();
  }
}