WebLogic Server 5.1.0 API Reference

weblogic.jdbc20.oci
Class Statement

java.lang.Object
  |
  +--weblogic.jdbcbase.oci.Statement
        |
        +--weblogic.jdbc20.oci.Statement

Direct Known Subclasses:

weblogic.jdbc20.oci.PreparedStatement

public class Statement

extends weblogic.jdbcbase.oci.Statement

implements java.sql.Statement

This class contains WebLogic extensions to JDBC to support parsing of SQL statements and adjusting of the fetch size. Only the extensions are documented here.

Version:

2.0

Author:

Copyright (c) 1999 by BEA WebXpress. All Rights Resrved.
Copyright © 2000 BEA Systems, Inc. All Rights Reserved.

Fields inherited from class weblogic.jdbcbase.oci.Statement

closed, connection, current_queryresult, cursorparams, doExtendedSQL, fetchsize, jdk_codeset, lastvalnull, maxfieldsize, maxrows, nullvalid, ociconn, ocicursor, updatecnt, warnings

Constructor Summary

Statement()

Method Summary

void	fetchSize(int size) Allows tuning of the size of prefetch array used for Oracle row results.

Methods inherited from class weblogic.jdbcbase.oci.Statement

addBatch, addBatch, addWarning, cancel, checkIfArgNull, checkIfClosed, checkJdbcSql, clearBatch, clearParameters, clearWarnings, close_cursor, close, execute, execute, executeBatch, executeQuery, executeQuery, executeUpdate, executeUpdate, fetchSize, finalize, getBigDecimal, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLong, getMaxFieldSize, getMaxRows, getMoreResults, getObject, getQueryTimeout, getResultSet, getResultSet, getShort, getString, getTime, getTimestamp, getUpdateCount, getWarnings, parse, registerOutParameter, registerOutParameter, setAsciiStream, setBigDecimal, setBinaryStream, setBoolean, setByte, setBytes, setCursorName, setDate, setDate, setDouble, setEscapeProcessing, setFloat, setInt, setLong, setMaxFieldSize, setMaxRows, setObject, setObject, setObject, setQueryTimeout, setReader, setShort, setStream, setString, setTime, setTime, setTimestamp, setTimestamp, setUnicodeStream, wasNull

Methods inherited from class java.lang.Object

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

Constructor Detail

Statement

public Statement()

Method Detail

fetchSize

public void fetchSize(int size)

Allows tuning of the size of prefetch array used for Oracle row results. Oracle provides the means to do data prefetch in batches, which decreases network traffic and latency for row requests.

The default batch size is 100. Memory for 100 rows is allocated in the native stack for every query. For queries that need fewer rows, this size can be adjusted appropriately. This saves on the swappable image size of the application and will benefit performance if only as many rows as needed are fetched.

Parameters:

size - Number of rows for prefetch

Overrides:

fetchSize in class weblogic.jdbcbase.oci.Statement