org.codehaus.jackson.io

类 UTF32Reader

java.lang.Object

java.io.Reader

org.codehaus.jackson.io.UTF32Reader

所有已实现的接口:

Closeable, AutoCloseable, Readable

public final class UTF32Reader
extends Reader

Since JDK does not come with UTF-32/UCS-4, let's implement a simple decoder to use.

字段概要

字段

限定符和类型	字段和说明
protected byte[]	_buffer
protected IOContext	_context
protected InputStream	_in
protected int	_length
protected int	_ptr
protected char[]	_tmpBuf
protected static int	LAST_VALID_UNICODE_CHAR JSON actually limits available Unicode range in the high end to the same as xml (to basically limit UTF-8 max byte sequence length to 4)
protected static char	NULL_BYTE
protected static char	NULL_CHAR

从类继承的字段 java.io.Reader

lock

构造器概要

构造器

构造器和说明
UTF32Reader(IOContext ctxt, InputStream in, byte[] buf, int ptr, int len, boolean isBigEndian)

方法概要

方法

限定符和类型	方法和说明
void	close()
void	freeBuffers() This method should be called along with (or instead of) normal close.
int	read() Although this method is implemented by the base class, AND it should never be called by main code, let's still implement it bit more efficiently just in case
int	read(char[] cbuf, int start, int len)
protected void	reportBounds(char[] cbuf, int start, int len)
protected void	reportStrangeStream()

从类继承的方法 java.io.Reader

mark, markSupported, read, read, ready, reset, skip

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

LAST_VALID_UNICODE_CHAR

protected static final int LAST_VALID_UNICODE_CHAR

JSON actually limits available Unicode range in the high end to the same as xml (to basically limit UTF-8 max byte sequence length to 4)

另请参阅:

常量字段值

NULL_CHAR

protected static final char NULL_CHAR

另请参阅:

常量字段值

NULL_BYTE

protected static final char NULL_BYTE

另请参阅:

常量字段值

_context

protected final IOContext _context

_in

protected InputStream _in

_buffer

protected byte[] _buffer

_ptr

protected int _ptr

_length

protected int _length

_tmpBuf

protected char[] _tmpBuf

构造器详细资料

UTF32Reader

public UTF32Reader(IOContext ctxt,
           InputStream in,
           byte[] buf,
           int ptr,
           int len,
           boolean isBigEndian)

方法详细资料

read

public int read(char[] cbuf,
       int start,
       int len)
         throws IOException

指定者:

read 在类中 Reader

抛出:

IOException

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

指定者:

close 在类中 Reader

抛出:

IOException

read

public int read()
         throws IOException

Although this method is implemented by the base class, AND it should never be called by main code, let's still implement it bit more efficiently just in case

覆盖:

read 在类中 Reader

抛出:

IOException

freeBuffers

public final void freeBuffers()

This method should be called along with (or instead of) normal close. After calling this method, no further reads should be tried. Method will try to recycle read buffers (if any).

reportBounds

protected void reportBounds(char[] cbuf,
                int start,
                int len)
                     throws IOException

抛出:

IOException

reportStrangeStream

protected void reportStrangeStream()
                            throws IOException

抛出:

IOException