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AdapterDecorator.java
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AdapterDecorator.java
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package decorator.adapter;
import java.util.stream.IntStream;
class MyStringBuilder // extends StringBuilder
{
private StringBuilder sb = new StringBuilder();
public MyStringBuilder()
{
sb = new StringBuilder();
}
public MyStringBuilder(String str)
{
sb = new StringBuilder(str);
}
// additional functionality
public String toString() {
return sb.toString();
}
public MyStringBuilder appendLine(String str)
{
sb.append(str).append(System.lineSeparator());
return this;
}
// something from string's API
public MyStringBuilder concat(String str)
{
return new MyStringBuilder(sb.toString().concat(str));
}
// delegated, but all signatures are wrong!
// vv
public MyStringBuilder append(Object obj) {
//return sb.append(obj);
sb.append(obj);
return this;
}
// vv
public MyStringBuilder append(String str) {
sb.append(str);
return this;
}
public StringBuilder append(StringBuffer sb) {
return this.sb.append(sb);
}
public StringBuilder append(CharSequence s) {
return sb.append(s);
}
public StringBuilder append(CharSequence s, int start, int end) {
return sb.append(s, start, end);
}
public StringBuilder append(char[] str) {
return sb.append(str);
}
public StringBuilder append(char[] str, int offset, int len) {
return sb.append(str, offset, len);
}
public StringBuilder append(boolean b) {
return sb.append(b);
}
public StringBuilder append(char c) {
return sb.append(c);
}
public StringBuilder append(int i) {
return sb.append(i);
}
public StringBuilder append(long lng) {
return sb.append(lng);
}
public StringBuilder append(float f) {
return sb.append(f);
}
public StringBuilder append(double d) {
return sb.append(d);
}
public StringBuilder appendCodePoint(int codePoint) {
return sb.appendCodePoint(codePoint);
}
public StringBuilder delete(int start, int end) {
return sb.delete(start, end);
}
public StringBuilder deleteCharAt(int index) {
return sb.deleteCharAt(index);
}
public StringBuilder replace(int start, int end, String str) {
return sb.replace(start, end, str);
}
public StringBuilder insert(int index, char[] str, int offset, int len) {
return sb.insert(index, str, offset, len);
}
public StringBuilder insert(int offset, Object obj) {
return sb.insert(offset, obj);
}
public StringBuilder insert(int offset, String str) {
return sb.insert(offset, str);
}
public StringBuilder insert(int offset, char[] str) {
return sb.insert(offset, str);
}
public StringBuilder insert(int dstOffset, CharSequence s) {
return sb.insert(dstOffset, s);
}
public StringBuilder insert(int dstOffset, CharSequence s, int start, int end) {
return sb.insert(dstOffset, s, start, end);
}
public StringBuilder insert(int offset, boolean b) {
return sb.insert(offset, b);
}
public StringBuilder insert(int offset, char c) {
return sb.insert(offset, c);
}
public StringBuilder insert(int offset, int i) {
return sb.insert(offset, i);
}
public StringBuilder insert(int offset, long l) {
return sb.insert(offset, l);
}
public StringBuilder insert(int offset, float f) {
return sb.insert(offset, f);
}
public StringBuilder insert(int offset, double d) {
return sb.insert(offset, d);
}
public int indexOf(String str) {
return sb.indexOf(str);
}
public int indexOf(String str, int fromIndex) {
return sb.indexOf(str, fromIndex);
}
public int lastIndexOf(String str) {
return sb.lastIndexOf(str);
}
public int lastIndexOf(String str, int fromIndex) {
return sb.lastIndexOf(str, fromIndex);
}
public StringBuilder reverse() {
return sb.reverse();
}
public int length() {
return sb.length();
}
public int capacity() {
return sb.capacity();
}
public void ensureCapacity(int minimumCapacity) {
sb.ensureCapacity(minimumCapacity);
}
public void trimToSize() {
sb.trimToSize();
}
public void setLength(int newLength) {
sb.setLength(newLength);
}
public char charAt(int index) {
return sb.charAt(index);
}
public int codePointAt(int index) {
return sb.codePointAt(index);
}
public int codePointBefore(int index) {
return sb.codePointBefore(index);
}
public int codePointCount(int beginIndex, int endIndex) {
return sb.codePointCount(beginIndex, endIndex);
}
public int offsetByCodePoints(int index, int codePointOffset) {
return sb.offsetByCodePoints(index, codePointOffset);
}
public void getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin) {
sb.getChars(srcBegin, srcEnd, dst, dstBegin);
}
public void setCharAt(int index, char ch) {
sb.setCharAt(index, ch);
}
public String substring(int start) {
return sb.substring(start);
}
public CharSequence subSequence(int start, int end) {
return sb.subSequence(start, end);
}
public String substring(int start, int end) {
return sb.substring(start, end);
}
public IntStream chars() {
return sb.chars();
}
public IntStream codePoints() {
return sb.codePoints();
}
}
public class AdapterDecorator {
public static void main(String[] args) {
MyStringBuilder msb = new MyStringBuilder();
msb.append("hello").appendLine(" world");
System.out.println(msb.concat("and this too"));
}
}