org.postgresql.util

Class PGbytea

java.lang.Object

org.postgresql.util.PGbytea

public class PGbytea
extends java.lang.Object

Converts to and from the postgresql bytea datatype used by the backend.

Constructor Summary

Constructors

Constructor and Description
PGbytea()

Method Summary

Modifier and Type	Method and Description
static void	appendHexString(java.lang.StringBuilder sb, byte[] buf, int offset, int length) Appends given byte array as hex string.
static byte[]	toBytes(byte[] s)
static java.lang.String	toPGLiteral(java.lang.Object value) Deprecated. prefer toPGLiteral(Object, SqlSerializationContext) to clarify the behaviour regarding InputStream objects
static java.lang.String	toPGLiteral(java.lang.Object value, SqlSerializationContext context) Formats input object as bytea literal like '\xcafebabe'::bytea.
static java.lang.String	toPGString(byte[] buf)

Methods inherited from class java.lang.Object

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

Constructor Detail

PGbytea

public PGbytea()

Method Detail

toBytes

public static byte[] toBytes(byte[] s)
                      throws java.sql.SQLException

Throws:

java.sql.SQLException

toPGString

public static java.lang.String toPGString(byte[] buf)

appendHexString

public static void appendHexString(java.lang.StringBuilder sb,
                                   byte[] buf,
                                   int offset,
                                   int length)

Appends given byte array as hex string. See HexEncodingBenchmark for the benchmark.

Parameters:

sb - output builder

buf - buffer to append

offset - offset within the buffer

length - the length of sequence to append

toPGLiteral

@Deprecated
public static java.lang.String toPGLiteral(java.lang.Object value)
                                                throws java.io.IOException

Deprecated. prefer toPGLiteral(Object, SqlSerializationContext) to clarify the behaviour regarding InputStream objects

Formats input object as bytea literal like '\xcafebabe'::bytea. The following inputs are supported: byte[], StreamWrapper, and ByteStreamWriter.

Parameters:

value - input value to format

Returns:

formatted value

Throws:

java.io.IOException - in case there's underflow in the input value

toPGLiteral

public static java.lang.String toPGLiteral(java.lang.Object value,
                                           SqlSerializationContext context)
                                    throws java.io.IOException

Formats input object as bytea literal like '\xcafebabe'::bytea. The following inputs are supported: byte[], StreamWrapper, and ByteStreamWriter.

Parameters:

value - input value to format

context - specifies configuration for converting the parameters to string

Returns:

formatted value

Throws:

java.io.IOException - in case there's underflow in the input value