Package com.nuodb.jdbc

Class ValueStream

java.lang.Object

com.nuodb.jdbc.Value

com.nuodb.jdbc.ValueStream

All Implemented Interfaces:

TimeValues

public class ValueStream
extends Value

ValueStream is a subclass of Value that replaces ValueString and ValueBytes to implement LOB streaming. It contains the object's stream identifier (a 32-bit int), and a connection to the server. When a client of ValueStreamId calls a method to extract data (getBytes, getInputStream, etc.), it will load the data from the server.

Field Summary

Fields inherited from class com.nuodb.jdbc.Value

Asciiblob, Binaryblob, BlobPtr, ClobPtr, Null, typeArbitrarydecimal, typeArray, typeBinChar, typeBoolean, typeBytes, typeChar, typeDate, typeDouble, typeFloat, typeInt, typeLong, typeNumber, typeShort, typeSqlTimestamp, typeStream, typeString, typeTimestamp, typeTimeType, typeVarBinChar, Varchar

Fields inherited from interface com.nuodb.jdbc.TimeValues

MILLISECONDS_PER_DAY, MILLISECONDS_PER_HOUR, MILLISECONDS_PER_MINUTE, MILLISECONDS_SCALE, NANOSECONDS_SCALE, SECONDS_PER_DAY, SECONDS_PER_HOUR, SECONDS_PER_MINUTE, SECONDS_SCALE

Constructor Summary

Constructors

Constructor	Description
ValueStream(int handle, int streamType, long chunkSize, long streamSize)

Method Summary

Modifier and Type	Method	Description
InputStream	getAsciiStream(SQLContext context)
byte[]	getBytes()
byte[]	getBytes(SQLContext context)
Reader	getCharacterStream(SQLContext context)
int	getChunksCount()
long	getChunkSize()
InputStream	getInputStream()
long	getStreamSize()
int	getStreamType()
String	getString()
void	setResultSet(ResultSet resultSet)

Methods inherited from class com.nuodb.jdbc.Value

getRef, getString, getString, reScale

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueStream

public ValueStream(int handle,
                   int streamType,
                   long chunkSize,
                   long streamSize)

Parameters:

handle - stream id

streamType - is either opaque or utf-8 from EncodedDataDefs

Method Detail

setResultSet

public void setResultSet(ResultSet resultSet)
                  throws SQLException

Throws:

SQLException

getString

public String getString()
                 throws SQLException

Throws:

SQLException

getBytes

public byte[] getBytes(SQLContext context)
                throws SQLException

Throws:

SQLException

getBytes

public byte[] getBytes()
                throws SQLException

Specified by:

getBytes in class Value

Throws:

SQLException

getInputStream

public InputStream getInputStream()
                           throws SQLException

Overrides:

getInputStream in class Value

Throws:

SQLException

getAsciiStream

public InputStream getAsciiStream(SQLContext context)
                           throws SQLException

Overrides:

getAsciiStream in class Value

Throws:

SQLException

getCharacterStream

public Reader getCharacterStream(SQLContext context)
                          throws SQLException

Overrides:

getCharacterStream in class Value

Throws:

SQLException

getStreamType

public int getStreamType()

getChunkSize

public long getChunkSize()

getStreamSize

public long getStreamSize()

getChunksCount

public int getChunksCount()