Neoview JDBC Type 4 Driver API Reference (R2.2, R2.3, R2.4, R2.5)

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com.hp.t4jdbc

Class HPT4Blob

java.lang.Object

com.hp.t4jdbc.HPT4Lob

com.hp.t4jdbc.HPT4Blob

All Implemented Interfaces:

java.sql.Blob

public class HPT4Blob

extends HPT4Lob

implements java.sql.Blob

The HPT4Blob class implements the Blob interface for the SQL BLOB type. An SQL BLOB is a built-in type that stores a

Binary Large Object as a column value in a row of a database table. By default, drivers implement Blob using an SQL

locator(BLOB), which means that a Blob object contains a logical pointer to the SQL BLOB data rather than the data

itself. A Blob object is valid for the duration of the transaction in which is was created.

Methods in the interfaces HPT4ResultSet, HPT4CallableStatement, and HPT4PreparedStatement, such as getBlob

and setBlob allow a programmer to access an SQL BLOB value. The Blob interface provides methods for getting the

length of an SQL BLOB (Binary Large Object) value, for materializing a BLOB value on the client, and for determining

the position of a pattern of bytes within a BLOB value. In addition, this interface has methods for updating a BLOB value.

Field Summary

Fields inherited from class com.hp.t4jdbc.

HPT4Lob

MAX_LOB_BATCHED_ROWS

Method Summary

java.io.InputStream getBinaryStream()

Retrieves the BLOB value designated by this Blob instance as a stream.

byte[] getBytes(long pos, int length)

Retrieves all or part of the BLOB value that this Blob object represents, as an array of

bytes.

long position(java.sql.Blob pattern, long start)

Retrieves the byte position in the BLOB value designated by this Blob object at which

pattern begins.