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Java Source Code / Java Documentation » Database JDBC Connection Pool » jTDS » net.sourceforge.jtds.jdbc

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

net.sourceforge.jtds.jdbc .ResponseStream

ResponseStream

public class ResponseStream (Code)

Implements an input stream for the server response.

Implementation note:

This class contains methods to read different types of data from the server response stream in TDS format.
Character translation of String items is carried out.

author:
Mike Hutchinson.
version:
$Id: ResponseStream.java,v 1.20 2005/10/27 13:22:33 alin_sinpalean Exp $

Constructor Summary
	ResponseStream(SharedSocket socket, int streamId, int bufferSize) Constructs a `RequestStream` object.

Method Summary
void	close() Closes this response stream.
InputStream	getInputStream(int len) Creates a simple `InputStream` over the server response.
int	getServerType() Retrieves the server type.
int	getStreamId() Retrieves the unique stream id.
int	getTdsVersion() Retrieves the TDS version number.
int	peek() Retrieves the next input byte without reading forward.
int	read() Reads the next input byte from the server response stream.
int	read(byte[] b) Reads a byte array from the server response stream.
int	read(byte[] b, int off, int len) Reads a byte array from the server response stream, specifying a start offset and length.
int	read(char[] c) Reads a char array from the server response stream.
int	readInt() Reads an `int` value from the server response stream.
long	readLong() Reads a `long` value from the server response stream.
String	readNonUnicodeString(int len) Reads a non Unicode `String` from the server response stream, creating the `String` from a translated `byte` array.
String	readNonUnicodeString(int len, CharsetInfo charsetInfo) Reads a `String` from the server response stream, translating it from a `byte` array using the specified character set.
short	readShort() Reads a `short` value from the server response stream.
String	readString(int len) Reads a `String` object from the server response stream.
String	readString(int len, CharsetInfo info) Reads a `String` from the server response stream, creating it from a translated `byte` array.
String	readUnicodeString(int len) Reads a UCS2-LE (Unicode) encoded String object from the server response stream.
BigDecimal	readUnsignedLong() Reads an `unsigned long` value from the server response stream.
int	skip(int skip) Discards bytes from the server response stream.
void	skipString(int len) Skips a `String` from the server response stream.
void	skipToEnd() Consumes the rest of the server response, without parsing it.

Constructor Detail

ResponseStream
ResponseStream(SharedSocket socket, int streamId, int bufferSize)(Code)
	Constructs a `RequestStream` object. Parameters: socket - the shared socket object to write to Parameters: streamId - the unique id for this stream (from ResponseStream) Parameters: bufferSize - the initial buffer size

Method Detail

close
void close()(Code)
	Closes this response stream. The stream id is unlinked from the underlying shared socket as well.

getInputStream
InputStream getInputStream(int len)(Code)
	Creates a simple `InputStream` over the server response. This method can be used to obtain a stream which can be passed to `InputStreamReader`s to assist in reading multi byte character sets. Parameters: len - the number of bytes available in the server response the `InputStream` built over the server response

getServerType
int getServerType()(Code)
	Retrieves the server type. the server type as an `int`

getStreamId
int getStreamId()(Code)
	Retrieves the unique stream id. the unique stream id as an `int`

getTdsVersion
int getTdsVersion()(Code)
	Retrieves the TDS version number. the TDS version as an `int`

peek
int peek() throws IOException(Code)
	Retrieves the next input byte without reading forward. the next byte in the input stream as an `int` throws: IOException - if an I/O error occurs

read
int read() throws IOException(Code)
	Reads the next input byte from the server response stream. the next byte in the input stream as an `int` throws: IOException - if an I/O error occurs

read
int read(byte[] b) throws IOException(Code)
	Reads a byte array from the server response stream. Parameters: b - the byte array to read into the number of bytes read as an `int` throws: IOException - if an I/O error occurs

read
int read(byte[] b, int off, int len) throws IOException(Code)
	Reads a byte array from the server response stream, specifying a start offset and length. Parameters: b - the byte array Parameters: off - the starting offset in the array Parameters: len - the number of bytes to read the number of bytes read as an `int` throws: IOException - if an I/O error occurs

read
int read(char[] c) throws IOException(Code)
	Reads a char array from the server response stream. Parameters: c - the char array the byte array as a `byte[]` throws: IOException - if an I/O error occurs

readInt
int readInt() throws IOException(Code)
	Reads an `int` value from the server response stream. the result as a `int` throws: IOException - if an I/O error occurs

readLong
long readLong() throws IOException(Code)
	Reads a `long` value from the server response stream. the result as a `long` throws: IOException - if an I/O error occurs

readNonUnicodeString
String readNonUnicodeString(int len) throws IOException(Code)
	Reads a non Unicode `String` from the server response stream, creating the `String` from a translated `byte` array. Parameters: len - the length of the string to read in bytes the result as a `String` throws: IOException - if an I/O error occurs

readNonUnicodeString
String readNonUnicodeString(int len, CharsetInfo charsetInfo) throws IOException(Code)
	Reads a `String` from the server response stream, translating it from a `byte` array using the specified character set. Parameters: len - the length of the string to read in bytes the result as a `String` throws: IOException - if an I/O error occurs

readShort
short readShort() throws IOException(Code)
	Reads a `short` value from the server response stream. the result as a `short` throws: IOException - if an I/O error occurs

readString
String readString(int len) throws IOException(Code)
	Reads a `String` object from the server response stream. If the TDS protocol version is 4.2 or 5.0 decode the string use the default server charset, otherwise use UCS2-LE (Unicode). Parameters: len - the length of the string to read in bytes in the caseof TDS 4.2/5.0 and in characters for TDS 7.0+(UCS2-LE encoded strings) the result as a `String` throws: IOException - if an I/O error occurs

readString
String readString(int len, CharsetInfo info) throws IOException(Code)
	Reads a `String` from the server response stream, creating it from a translated `byte` array. Parameters: len - the length of the string to read in bytes Parameters: info - descriptor of the charset to use the result as a `String` throws: IOException - if an I/O error occurs

readUnicodeString
String readUnicodeString(int len) throws IOException(Code)
	Reads a UCS2-LE (Unicode) encoded String object from the server response stream. Parameters: len - the length of the string to read in characters the result as a `String` throws: IOException - if an I/O error occurs

readUnsignedLong
BigDecimal readUnsignedLong() throws IOException(Code)
	Reads an `unsigned long` value from the server response stream. the result as a `BigDecimal` throws: IOException - if an I/O error occurs

skip
int skip(int skip) throws IOException(Code)
	Discards bytes from the server response stream. Parameters: skip - the number of bytes to discard the number of bytes skipped

skipString
void skipString(int len) throws IOException(Code)
	Skips a `String` from the server response stream. If the TDS protocol version is 4.2 or 5.0 `len` is the length in bytes, otherwise it's the length in UCS2-LE characters (length in bytes == 2 * `len`). Parameters: len - the length of the string to skip in bytes in the caseof TDS 4.2/5.0 and in characters for TDS 7.0+(UCS2-LE encoded strings) throws: IOException - if an I/O error occurs

skipToEnd
void skipToEnd()(Code)
	Consumes the rest of the server response, without parsing it. Note: Use only in extreme cases, packets will not be parsed and could leave the connection in an inconsistent state.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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