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liyazhouliyazhou
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mediator pattern
1 parent 654b40b commit 1e5bc9a

5 files changed

Lines changed: 76 additions & 60 deletions

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‎src/com/anxpp/designpattern/mediator/IPersistent.java‎

Lines changed: 6 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,10 @@
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package com.anxpp.designpattern.mediator;
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//同事（接口）
34
public interface IPersistent {
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void getData(Object data);
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void getData(Object data,Midiator midiator);
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void saveData();
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void getData(Object data);
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void getData(Object data, Midiator midiator);
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void saveData();
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}

‎src/com/anxpp/designpattern/mediator/Midiator.java‎

Lines changed: 20 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -1,20 +1,24 @@
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package com.anxpp.designpattern.mediator;
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//具体中介者
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public class Midiator {
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PersistentDB persistentDB;
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PersistentFile persistentFile;
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public Midiator setPersistentDB(PersistentDB persistentDB) {
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this.persistentDB = persistentDB;
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return this;
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}
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public Midiator setPersistentFile(PersistentFile persistentFile) {
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this.persistentFile = persistentFile;
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return this;
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}
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public void notifyOther(IPersistent persistent,Object data){
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if(persistent instanceof PersistentDB)
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persistentFile.getData(data);
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if(persistent instanceof PersistentFile)
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persistentDB.getData(data);
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}
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PersistentDB persistentDB;
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PersistentFile persistentFile;
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public Midiator setPersistentDB(PersistentDB persistentDB) {
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this.persistentDB = persistentDB;
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return this;
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}
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public Midiator setPersistentFile(PersistentFile persistentFile) {
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this.persistentFile = persistentFile;
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return this;
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}
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public void notifyOther(IPersistent persistent, Object data) {
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if (persistent instanceof PersistentDB)
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persistentFile.getData(data);
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if (persistent instanceof PersistentFile)
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persistentDB.getData(data);
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}
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}

‎src/com/anxpp/designpattern/mediator/PersistentDB.java‎

Lines changed: 20 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -1,19 +1,23 @@
11
package com.anxpp.designpattern.mediator;
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23
//具体同事
3-
public class PersistentDB implements IPersistent{
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private Object data;
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@Override
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public void getData(Object data, Midiator midiator) {
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getData(data);
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midiator.notifyOther(this, data);
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}
10-
@Override
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public void saveData() {
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System.out.println(data + " 已保存到数据库");
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}
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@Override
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public void getData(Object data) {
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this.data = data;
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saveData();
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}
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public class PersistentDB implements IPersistent {
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private Object data;
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7+
@Override
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public void getData(Object data, Midiator midiator) {
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getData(data);
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midiator.notifyOther(this, data);
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}
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@Override
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public void saveData() {
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System.out.println(data + " 已保存到数据库");
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}
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@Override
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public void getData(Object data) {
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this.data = data;
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saveData();
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}
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}

‎src/com/anxpp/designpattern/mediator/PersistentFile.java‎

Lines changed: 20 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -1,19 +1,23 @@
11
package com.anxpp.designpattern.mediator;
2+
23
//具体同事
3-
public class PersistentFile implements IPersistent{
4-
private Object data;
5-
@Override
6-
public void getData(Object data, Midiator midiator) {
7-
getData(data);
8-
midiator.notifyOther(this, data);
9-
}
10-
@Override
11-
public void saveData() {
12-
System.out.println(data + " 已保存到文件");
13-
}
14-
@Override
15-
public void getData(Object data) {
16-
this.data = data;
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saveData();
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}
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public class PersistentFile implements IPersistent {
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private Object data;
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7+
@Override
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public void getData(Object data, Midiator midiator) {
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getData(data);
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midiator.notifyOther(this, data);
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}
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@Override
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public void saveData() {
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System.out.println(data + " 已保存到文件");
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}
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18+
@Override
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public void getData(Object data) {
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this.data = data;
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saveData();
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}
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}

‎src/com/anxpp/designpattern/mediator/TestUse.java‎

Lines changed: 10 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -1,12 +1,13 @@
11
package com.anxpp.designpattern.mediator;
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public class TestUse {
3-
public static void main(String args[]){
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Object data = "数据";
5-
PersistentDB persistentDB = new PersistentDB();
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PersistentFile persistentFile = new PersistentFile();
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Midiator midiator = new Midiator();
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midiator.setPersistentDB(persistentDB).setPersistentFile(persistentFile);
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persistentDB.getData(data, midiator);
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persistentFile.getData(data, midiator);
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}
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public static void main(String args[]) {
5+
Object data = "数据";
6+
PersistentDB persistentDB = new PersistentDB();
7+
PersistentFile persistentFile = new PersistentFile();
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Midiator midiator = new Midiator();
9+
midiator.setPersistentDB(persistentDB).setPersistentFile(persistentFile);
10+
persistentDB.getData(data, midiator);
11+
persistentFile.getData(data, midiator);
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}
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}

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