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2010-06-01T05:02:28Z

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в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== Adapter Pattern Demo ==



<source lang="java">
class Target {
public void request() {
}
}
class Adaptee {
public void specificRequest() {
System.out.println("Adaptee: SpecificRequest");
}
}
class Adapter extends Target {
private Adaptee adaptee;
public Adapter(Adaptee a) {
adaptee = a;
}
public void request() {
adaptee.specificRequest();
}
}
public class SimpleAdapter {
public static void main(String args[]) {
Adaptee a = new Adaptee();
Target t = new Adapter(a);
t.request();
}
}</source>



== Adapter pattern: two interfaces ==



<source lang="java">
public class TestAdapter {
public static void main(String args[]) {
SimpleName aceObject = new SimpleName();
aceObject.setName("A");
FullNameSimpleNameAdapter adapter = new FullNameSimpleNameAdapter(aceObject);
System.out.println("Customer"s first name: " + adapter.getFirstName());
System.out.println("Customer"s last name: " + adapter.getLastName());
}
}
interface SimpleNameInterface {
public void setName(String n);
public String getName();
}
class SimpleName implements SimpleNameInterface {
String name;
public void setName(String n) {
name = n;
}
public String getName() {
return name;
}
}
interface FullNameInterface {
public void setFirstName(String f);
public void setLastName(String l);
public String getFirstName();
public String getLastName();
}
class FullNameSimpleNameAdapter implements FullNameInterface {
SimpleName aceObject;
String firstName;
String lastName;
public FullNameSimpleNameAdapter(SimpleName a) {
aceObject = a;
firstName = aceObject.getName().split(" ")[0];
lastName = aceObject.getName().split(" ")[1];
}
public void setFirstName(String f) {
firstName = f;
}
public void setLastName(String l) {
lastName = l;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
}</source>



== Variations on the Adapter pattern. ==



<source lang="java">
class Programming {
public void code() {
}
public void debug() {
}
}
interface ModernProgramming {
void ide();
}
class SurrogateAdapter implements ModernProgramming {
Programming programming;
public SurrogateAdapter(Programming wih) {
programming = wih;
}
public void ide() {
programming.code();
programming.debug();
}
}
class DailyJob {
public void work(ModernProgramming wiw) {
wiw.ide();
}
}
class Coder extends DailyJob {
public void op(Programming wih) {
new SurrogateAdapter(wih).ide();
}
}
class Coder2 extends Programming implements ModernProgramming {
public void ide() {
code();
debug();
}
}
class Coder3 extends Programming {
private class InnerAdapter implements ModernProgramming {
public void ide() {
code();
debug();
}
}
public ModernProgramming whatIWant() {
return new InnerAdapter();
}
}
public class AdapterVariations {
public static void main(String args[]) {
DailyJob whatIUse = new DailyJob();
Programming whatIHave = new Programming();
ModernProgramming adapt = new SurrogateAdapter(whatIHave);
Coder coder = new Coder();
Coder2 coder2 = new Coder2();
Coder3 coder3 = new Coder3();
whatIUse.work(adapt);
// Approach 2:
coder.op(whatIHave);
// Approach 3:
whatIUse.work(coder2);
// Approach 4:
whatIUse.work(coder3.whatIWant());
}
}</source>

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Admin: 1 версия

в 17:44, 31 мая 2010