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ByteBufferAsDoubleBufferB.javaAPI DocJava SE 5 API2856Fri Aug 26 16:50:04 BST 2005java.nio

ByteBufferAsDoubleBufferB

public class ByteBufferAsDoubleBufferB extends DoubleBuffer

Fields Summary
protected final ByteBuffer
bb
protected final int
offset
Constructors Summary
ByteBufferAsDoubleBufferB(ByteBuffer bb)

	// package-private

	super(-1, 0,
	      bb.remaining() >> 3,
	      bb.remaining() >> 3);
	this.bb = bb;
	// enforce limit == capacity
	int cap = this.capacity();
	this.limit(cap);
	int pos = this.position();
	assert (pos <= cap);
	offset = pos;



    
ByteBufferAsDoubleBufferB(ByteBuffer bb, int mark, int pos, int lim, int cap, int off)


	super(mark, pos, lim, cap);
	this.bb = bb;
	offset = off;



    
Methods Summary
public java.nio.DoubleBufferasReadOnlyBuffer()


	return new ByteBufferAsDoubleBufferRB(bb,
						 this.markValue(),
						 this.position(),
						 this.limit(),
						 this.capacity(),
						 offset);



    
public java.nio.DoubleBuffercompact()


	int pos = position();
	int lim = limit();
	assert (pos <= lim);
	int rem = (pos <= lim ? lim - pos : 0);

	ByteBuffer db = bb.duplicate();
 	db.limit(ix(lim));
	db.position(ix(0));
	ByteBuffer sb = db.slice();
	sb.position(pos << 3);
	sb.compact();
 	position(rem);
	limit(capacity());
	return this;



    
public java.nio.DoubleBufferduplicate()

	return new ByteBufferAsDoubleBufferB(bb,
						    this.markValue(),
						    this.position(),
						    this.limit(),
						    this.capacity(),
						    offset);
    
public doubleget()

	return Bits.getDoubleB(bb, ix(nextGetIndex()));
    
public doubleget(int i)

	return Bits.getDoubleB(bb, ix(checkIndex(i)));
    
public booleanisDirect()

	return bb.isDirect();
    
public booleanisReadOnly()

	return false;
    
protected intix(int i)

	return (i << 3) + offset;
    
public java.nio.ByteOrderorder()


	return ByteOrder.BIG_ENDIAN;




    
public java.nio.DoubleBufferput(int i, double x)


	Bits.putDoubleB(bb, ix(checkIndex(i)), x);
	return this;



    
public java.nio.DoubleBufferput(double x)


	Bits.putDoubleB(bb, ix(nextPutIndex()), x);
	return this;



    
public java.nio.DoubleBufferslice()

	int pos = this.position();
	int lim = this.limit();
	assert (pos <= lim);
	int rem = (pos <= lim ? lim - pos : 0);
	int off = (pos << 3) + offset;
        assert (off >= 0);
	return new ByteBufferAsDoubleBufferB(bb, -1, 0, rem, rem, off);