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Copy pathBuilder.java
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78 lines (69 loc) · 1.38 KB
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package designpatterns;
/**
*
* @author jtherrell
*/
class Director {
private Builder builder;
public Director(Builder b) {
builder = b;
}
public void convert(String string) {
for (int i = 0; i < string.length(); i++) {
if (i % 2 == 0)
builder.buildPartA(string.charAt(i));
else
builder.buildPartB(string.charAt(i));
}
}
}
abstract class Builder {
protected BuildProduct product;
abstract public void buildPartA(char c);
abstract public void buildPartB(char c);
}
class ConcreteBuilderA extends Builder {
public ConcreteBuilderA() {
product = new BuildProduct();
}
public void buildPartA(char c) {
buildPartB(c);
}
public void buildPartB(char c) {
product.append(Character.toUpperCase(c));
}
public BuildProduct getProduct() {
return product;
}
}
class ConcreteBuilderB extends Builder {
public ConcreteBuilderB() {
product = new BuildProduct();
}
public void buildPartA(char c) {
product.append(Character.toUpperCase(c));
}
public void buildPartB(char c) {
product.append(c);
}
public BuildProduct getProduct() {
return product;
}
}
class BuildProduct {
private Log doc;
public BuildProduct() {
doc = new Log();
}
public void append(char c) {
doc.append(c);
}
@Override
public String toString() {
return doc.toString();
}
}