Modifier and Type	Class and Description
pack-priv static class	ISO2022_CN.Decoder

Modifier and Type	Field and Description
private static final byte	ISO_ESC
private static final byte	ISO_SI
private static final byte	ISO_SO
private static final byte	ISO_SS2_7
private static final byte	ISO_SS3_7
private static final byte	MSB
private static final char	REPLACE_CHAR
private static final byte	SODesigCNS
private static final byte	SODesigGB

Access	Constructor and Description
public	ISO2022_CN()

Method Summary

Modifier and Type	Method and Description
public boolean	canEncode() Overrides java.nio.charset.Charset.canEncode. Tells whether or not this charset supports encoding.
public boolean	contains(Charset cs) Implements abstract java.nio.charset.Charset.contains. Tells whether or not this charset contains the given charset.
public String	historicalName() Implements sun.nio.cs.HistoricallyNamedCharset.historicalName.
public CharsetDecoder	newDecoder() Implements abstract java.nio.charset.Charset.newDecoder. Constructs a new decoder for this charset.
public CharsetEncoder	newEncoder() Implements abstract java.nio.charset.Charset.newEncoder. Constructs a new encoder for this charset.

Inherited from java.nio.charset.Charset:: aliases availableCharsets compareTo decode defaultCharset displayName displayName encode encode equals forName forName hashCode isRegistered isSupported name toString

ISO_ESC	back to summary
private static final byte ISO_ESC

ISO_SI	back to summary
private static final byte ISO_SI

ISO_SO	back to summary
private static final byte ISO_SO

ISO_SS2_7	back to summary
private static final byte ISO_SS2_7

ISO_SS3_7	back to summary
private static final byte ISO_SS3_7

MSB	back to summary
private static final byte MSB

REPLACE_CHAR	back to summary
private static final char REPLACE_CHAR

SODesigCNS	back to summary
private static final byte SODesigCNS

SODesigGB	back to summary
private static final byte SODesigGB

ISO2022_CN	back to summary
public ISO2022_CN()

Method Detail

canEncode back to summary

canEncode	back to summary
public boolean canEncode() Overrides java.nio.charset.Charset.canEncode. Doc from java.nio.charset.Charset.canEncode. Tells whether or not this charset supports encoding. Nearly all charsets support encoding. The primary exceptions are special-purpose auto-detect charsets whose decoders can determine which of several possible encoding schemes is in use by examining the input byte sequence. Such charsets do not support encoding because there is no way to determine which encoding should be used on output. Implementations of such charsets should override this method to return `false`.

public boolean canEncode()

Overrides java.nio.charset.Charset.canEncode.

Doc from java.nio.charset.Charset.canEncode.

Tells whether or not this charset supports encoding.

Nearly all charsets support encoding. The primary exceptions are special-purpose auto-detect charsets whose decoders can determine which of several possible encoding schemes is in use by examining the input byte sequence. Such charsets do not support encoding because there is no way to determine which encoding should be used on output. Implementations of such charsets should override this method to return false.

contains back to summary

contains	back to summary
public boolean contains(Charset cs) Implements abstract java.nio.charset.Charset.contains. Doc from java.nio.charset.Charset.contains. Tells whether or not this charset contains the given charset. A charset C is said to contain a charset D if, and only if, every character representable in D is also representable in C. If this relationship holds then it is guaranteed that every string that can be encoded in D can also be encoded in C without performing any replacements. That C contains D does not imply that each character representable in C by a particular byte sequence is represented in D by the same byte sequence, although sometimes this is the case. Every charset contains itself. This method computes an approximation of the containment relation: If it returns `true` then the given charset is known to be contained by this charset; if it returns `false`, however, then it is not necessarily the case that the given charset is not contained in this charset.

public boolean contains(Charset cs)

Implements abstract java.nio.charset.Charset.contains.

Doc from java.nio.charset.Charset.contains.

Tells whether or not this charset contains the given charset.

A charset C is said to contain a charset D if, and only if, every character representable in D is also representable in C. If this relationship holds then it is guaranteed that every string that can be encoded in D can also be encoded in C without performing any replacements.

That C contains D does not imply that each character representable in C by a particular byte sequence is represented in D by the same byte sequence, although sometimes this is the case.

Every charset contains itself.

This method computes an approximation of the containment relation: If it returns true then the given charset is known to be contained by this charset; if it returns false, however, then it is not necessarily the case that the given charset is not contained in this charset.

historicalName	back to summary
public String historicalName() Implements sun.nio.cs.HistoricallyNamedCharset.historicalName.

newDecoder	back to summary
public CharsetDecoder newDecoder() Implements abstract java.nio.charset.Charset.newDecoder. Doc from java.nio.charset.Charset.newDecoder. Constructs a new decoder for this charset.

newDecoder

back to summary

public CharsetDecoder newDecoder()

Implements abstract java.nio.charset.Charset.newDecoder.

Doc from java.nio.charset.Charset.newDecoder.

Constructs a new decoder for this charset.

newEncoder	back to summary
public CharsetEncoder newEncoder() Implements abstract java.nio.charset.Charset.newEncoder. Doc from java.nio.charset.Charset.newEncoder. Constructs a new encoder for this charset.

newEncoder

back to summary

public CharsetEncoder newEncoder()

Implements abstract java.nio.charset.Charset.newEncoder.

Doc from java.nio.charset.Charset.newEncoder.

Constructs a new encoder for this charset.

sun.nio.cs.ext back to summary

pack-priv Class ISO2022_CN.Decoder

Class Inheritance

extends CharsetDecoder

java.lang.Object
java.nio.charset.CharsetDecoder
sun.nio.cs.ext.ISO2022_CN.Decoder

Field Summary

Modifier and Type	Field and Description
private byte	currentSODesig
private static final DoubleByte.Decoder	GB2312
private boolean	shiftOut

Constructor Summary

Access	Constructor and Description
pack-priv	Decoder(Charset cs)

Method Summary

Modifier and Type	Method and Description
private char	cnsDecode(byte byte1, byte byte2, byte SS)
private CoderResult	decodeArrayLoop(ByteBuffer src, CharBuffer dst)
private CoderResult	decodeBufferLoop(ByteBuffer src, CharBuffer dst)
protected CoderResult	decodeLoop(ByteBuffer src, CharBuffer dst) Implements abstract java.nio.charset.CharsetDecoder.decodeLoop. Decodes one or more bytes into one or more characters.
protected void	implReset() Overrides java.nio.charset.CharsetDecoder.implReset. Resets this decoder, clearing any charset-specific internal state.
private char	SODecode(byte byte1, byte byte2, byte SOD)

Field Detail

currentSODesig	back to summary
private byte currentSODesig

GB2312	back to summary
private static final DoubleByte.Decoder GB2312

shiftOut	back to summary
private boolean shiftOut

Constructor Detail

Decoder	back to summary
pack-priv Decoder(Charset cs)

Method Detail

cnsDecode	back to summary
private char cnsDecode(byte byte1, byte byte2, byte SS)

decodeArrayLoop	back to summary
private CoderResult decodeArrayLoop(ByteBuffer src, CharBuffer dst)

decodeBufferLoop	back to summary
private CoderResult decodeBufferLoop(ByteBuffer src, CharBuffer dst)

decodeLoop back to summary

decodeLoop	back to summary
protected CoderResult decodeLoop(ByteBuffer src, CharBuffer dst) Implements abstract java.nio.charset.CharsetDecoder.decodeLoop. Doc from java.nio.charset.CharsetDecoder.decodeLoop. Decodes one or more bytes into one or more characters. This method encapsulates the basic decoding loop, decoding as many bytes as possible until it either runs out of input, runs out of room in the output buffer, or encounters a decoding error. This method is invoked by the `decode` method, which handles result interpretation and error recovery. The buffers are read from, and written to, starting at their current positions. At most `in.remaining()` bytes will be read, and at most `out.remaining()` characters will be written. The buffers' positions will be advanced to reflect the bytes read and the characters written, but their marks and limits will not be modified. This method returns a `CoderResult` object to describe its reason for termination, in the same manner as the `decode` method. Most implementations of this method will handle decoding errors by returning an appropriate result object for interpretation by the `decode` method. An optimized implementation may instead examine the relevant error action and implement that action itself. An implementation of this method may perform arbitrary lookahead by returning `CoderResult#UNDERFLOW` until it receives sufficient input.

protected CoderResult decodeLoop(ByteBuffer src, CharBuffer dst)

Implements abstract java.nio.charset.CharsetDecoder.decodeLoop.

Doc from java.nio.charset.CharsetDecoder.decodeLoop.

Decodes one or more bytes into one or more characters.

This method encapsulates the basic decoding loop, decoding as many bytes as possible until it either runs out of input, runs out of room in the output buffer, or encounters a decoding error. This method is invoked by the decode method, which handles result interpretation and error recovery.

The buffers are read from, and written to, starting at their current positions. At most in.remaining() bytes will be read, and at most out.remaining() characters will be written. The buffers' positions will be advanced to reflect the bytes read and the characters written, but their marks and limits will not be modified.

This method returns a CoderResult object to describe its reason for termination, in the same manner as the decode method. Most implementations of this method will handle decoding errors by returning an appropriate result object for interpretation by the decode method. An optimized implementation may instead examine the relevant error action and implement that action itself.

An implementation of this method may perform arbitrary lookahead by returning CoderResult#UNDERFLOW until it receives sufficient input.

implReset	back to summary
protected void implReset() Overrides java.nio.charset.CharsetDecoder.implReset. Doc from java.nio.charset.CharsetDecoder.implReset. Resets this decoder, clearing any charset-specific internal state. The default implementation of this method does nothing. This method should be overridden by decoders that maintain internal state.

implReset

back to summary

protected void implReset()

Overrides java.nio.charset.CharsetDecoder.implReset.

Doc from java.nio.charset.CharsetDecoder.implReset.

Resets this decoder, clearing any charset-specific internal state.

The default implementation of this method does nothing. This method should be overridden by decoders that maintain internal state.

SODecode	back to summary
private char SODecode(byte byte1, byte byte2, byte SOD)

public Class ISO2022_CN

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv Class ISO2022_CN.Decoder

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail