oracle 表空间 不足时如何处理

main
===================================================================================
package com.handler.sym;

public class Testhandler {

/**
* @param args
*
抽象处理类：抽象处理类中主要包含一个指向下一处理类的成员变量nextHandler和一个处理请求的方法handRequest，handRequest方法的主要主要思想是，
如果满足处理的条件，则有本处理类来进行处理，否则由nextHandler来处理。
具体处理类：具体处理类主要是对具体的处理逻辑和处理的适用条件进行实现。
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Handler handler1 = new ConcreteHandler1();
Handler handler2 = new ConcreteHandler2();
Handler handler3 = new ConcreteHandler3();
handler1.setNextHandler(handler2);
handler2.setNextHandler(handler3);
Response response = handler1.handleRequest(new Request(new Level(4)));
}

}
请求与响应
=================================================================================
package com.handler.sym;

public class Level {
private int level = 0;

public Level(int level) {
this.level = level;
}
public boolean above(Level level){
if(this.level>=level.level){
return true;
}else {
return false;
}
}
}

package com.handler.sym;

public class Request {
Level level;

public Request(Level level) {
this.level = level;
}

public Level getLevel() {
return level;
}
}

package com.handler.sym;

public class Response {

}

处理抽象类
==============================================================================
package com.handler.sym;

public abstract class Handler {
private Handler nextHandler;
public final Response handleRequest(Request request){
Response response=null;
if (this.getHandlerLevel().above(request.getLevel())) {
response=this.response(request);
}else if(this.nextHandler!=null){
this.nextHandler.handleRequest(request);
}else {
System.out.print("没有合适的handler");
}
return response;

}
public void setNextHandler(Handler handler){
this.nextHandler = handler;
}
protected abstract Level getHandlerLevel();
public abstract Response response(Request request);
}

处理具体类1
===============================================================================
package com.handler.sym;

public class ConcreteHandler1 extends Handler {
protected Level getHandlerLevel() {
return new Level(1);
}
public Response response(Request request) {
System.out.println("-----请求由处理器1进行处理-----");
return null;
}
}

处理具体类2
===============================================================================
package com.handler.sym;

public class ConcreteHandler2 extends Handler {

@Override
protected Level getHandlerLevel() {
// TODO Auto-generated method stub
return new Level(3);
}

@Override
public Response response(Request request) {
System.out.println("-----请求由处理器2进行处理-----");
return null;
}

}
处理具体类3
===============================================================================
package com.handler.sym;

public class ConcreteHandler3 extends Handler {

@Override
protected Level getHandlerLevel() {
// TODO Auto-generated method stub
return new Level(5);
}

@Override
public Response response(Request request) {
System.out.println("-----请求由处理器3进行处理-----");
return null;
}

}