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com.sun.tools.javac.util
public class: ByteBuffer [javadoc | source]

java.lang.Object
   com.sun.tools.javac.util.ByteBuffer

A byte buffer is a flexible array which grows when elements are appended. There are also methods to append names to byte buffers and to convert byte buffers to names.

This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

Field Summary
public  byte[]	elems	An array holding the bytes in this buffer; can be grown.
public  int	length	The current number of defined bytes in this buffer.

Constructor:
public ByteBuffer() { this(64); } Create a new byte buffer.
public ByteBuffer(int initialSize) { elems = new byte[initialSize]; length = 0; } Create a new byte buffer with an initial elements array of given size.

Method from com.sun.tools.javac.util.ByteBuffer Summary:
appendByte,   appendBytes,   appendBytes,   appendChar,   appendDouble,   appendFloat,   appendInt,   appendLong,   appendName,   reset,   toName

Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait

Method from com.sun.tools.javac.util.ByteBuffer Detail:
public void appendByte(int b) { if (length >= elems.length) copy(elems.length * 2); elems[length++] = (byte)b; } Append byte to this buffer.
public void appendBytes(byte[] bs) { appendBytes(bs, 0, bs.length); } Append all bytes from given byte array.
public void appendBytes(byte[] bs, int start, int len) { while (length + len > elems.length) copy(elems.length * 2); System.arraycopy(bs, start, elems, length, len); length += len; } Append `len' bytes from byte array, starting at given `start' offset.
public void appendChar(int x) { while (length + 1 >= elems.length) copy(elems.length * 2); elems[length ] = (byte)((x > > 8) & 0xFF); elems[length+1] = (byte)((x ) & 0xFF); length = length + 2; } Append a character as a two byte number.
public void appendDouble(double x) { ByteArrayOutputStream buffer = new ByteArrayOutputStream(8); DataOutputStream bufout = new DataOutputStream(buffer); try { bufout.writeDouble(x); appendBytes(buffer.toByteArray(), 0, 8); } catch (IOException e) { throw new AssertionError("write"); } } Append a double as a eight byte number.
public void appendFloat(float x) { ByteArrayOutputStream buffer = new ByteArrayOutputStream(4); DataOutputStream bufout = new DataOutputStream(buffer); try { bufout.writeFloat(x); appendBytes(buffer.toByteArray(), 0, 4); } catch (IOException e) { throw new AssertionError("write"); } } Append a float as a four byte number.
public void appendInt(int x) { while (length + 3 >= elems.length) copy(elems.length * 2); elems[length ] = (byte)((x > > 24) & 0xFF); elems[length+1] = (byte)((x > > 16) & 0xFF); elems[length+2] = (byte)((x > > 8) & 0xFF); elems[length+3] = (byte)((x ) & 0xFF); length = length + 4; } Append an integer as a four byte number.
public void appendLong(long x) { ByteArrayOutputStream buffer = new ByteArrayOutputStream(8); DataOutputStream bufout = new DataOutputStream(buffer); try { bufout.writeLong(x); appendBytes(buffer.toByteArray(), 0, 8); } catch (IOException e) { throw new AssertionError("write"); } } Append a long as an eight byte number.
public void appendName(Name name) { appendBytes(name.getByteArray(), name.getByteOffset(), name.getByteLength()); } Append a name.
public void reset() { length = 0; } Reset to zero length.
public Name toName(Names names) { return names.fromUtf(elems, 0, length); } Convert contents to name.