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HeapCharBuffer.javaAPI DocJava SE 5 API5106Fri Aug 26 16:48:04 BST 2005java.nio

HeapCharBuffer

public class HeapCharBuffer extends CharBuffer
A read/write HeapCharBuffer.

Fields Summary
Constructors Summary
HeapCharBuffer(int cap, int lim)

		// package-private

	super(-1, 0, lim, cap, new char[cap], 0);
	/*
	hb = new char[cap];
	offset = 0;
	*/
HeapCharBuffer(char[] buf, int off, int len)

 // package-private

	super(-1, off, off + len, buf.length, buf, 0);
	/*
	hb = buf;
	offset = 0;
	*/
protected HeapCharBuffer(char[] buf, int mark, int pos, int lim, int cap, int off)


	super(mark, pos, lim, cap, buf, off);
	/*
	hb = buf;
	offset = off;
	*/
Methods Summary
public java.nio.CharBufferasReadOnlyBuffer()


	return new HeapCharBufferR(hb,
				     this.markValue(),
				     this.position(),
				     this.limit(),
				     this.capacity(),
				     offset);
public java.nio.CharBuffercompact()


	System.arraycopy(hb, ix(position()), hb, ix(0), remaining());
	position(remaining());
	limit(capacity());
	return this;
public java.nio.CharBufferduplicate()

	return new HeapCharBuffer(hb,
					this.markValue(),
					this.position(),
					this.limit(),
					this.capacity(),
					offset);
public java.nio.CharBufferget(char[] dst, int offset, int length)

	checkBounds(offset, length, dst.length);
	if (length > remaining())
	    throw new BufferUnderflowException();
	System.arraycopy(hb, ix(position()), dst, offset, length);
	position(position() + length);
	return this;
public charget()

	return hb[ix(nextGetIndex())];
public charget(int i)

	return hb[ix(checkIndex(i))];
public booleanisDirect()

	return false;
public booleanisReadOnly()

	return false;
protected intix(int i)

	return i + offset;
public java.nio.ByteOrderorder()

	return ByteOrder.nativeOrder();
public java.nio.CharBufferput(char x)


	hb[ix(nextPutIndex())] = x;
	return this;
public java.nio.CharBufferput(int i, char x)


	hb[ix(checkIndex(i))] = x;
	return this;
public java.nio.CharBufferput(char[] src, int offset, int length)


	checkBounds(offset, length, src.length);
	if (length > remaining())
	    throw new BufferOverflowException();
	System.arraycopy(src, offset, hb, ix(position()), length);
	position(position() + length);
	return this;
public java.nio.CharBufferput(java.nio.CharBuffer src)


	if (src instanceof HeapCharBuffer) {
	    if (src == this)
		throw new IllegalArgumentException();
	    HeapCharBuffer sb = (HeapCharBuffer)src;
	    int n = sb.remaining();
	    if (n > remaining())
		throw new BufferOverflowException();
	    System.arraycopy(sb.hb, sb.ix(sb.position()),
			     hb, ix(position()), n);
	    sb.position(sb.position() + n);
	    position(position() + n);
	} else if (src.isDirect()) {
	    int n = src.remaining();
	    if (n > remaining())
		throw new BufferOverflowException();
	    src.get(hb, ix(position()), n);
	    position(position() + n);
	} else {
	    super.put(src);
	}
	return this;
public java.nio.CharBufferslice()

	return new HeapCharBuffer(hb,
					-1,
					0,
					this.remaining(),
					this.remaining(),
					this.position() + offset);
public java.lang.CharSequencesubSequence(int start, int end)

        if ((start < 0)
	    || (end > length())
	    || (start > end))
	    throw new IndexOutOfBoundsException();
        int len = end - start;
        return new HeapCharBuffer(hb,
				      -1, 0, len, len,
				      offset + position() + start);
java.lang.StringtoString(int start, int end)

		// package-private
	try {
	    return new String(hb, start + offset, end - start);
	} catch (StringIndexOutOfBoundsException x) {
	    throw new IndexOutOfBoundsException();
	}