org.rhq.core.util.jdbc
Class JDBCUtil

java.lang.Object
  org.rhq.core.util.jdbc.JDBCUtil

public class JDBCUtil
extends Object

Take care of some JDBC related stuff. Mostly closing resources

Author:

Heiko W. Rupp

Constructor Summary

JDBCUtil()

Method Summary

static void	bindNTimes(PreparedStatement ps, int[] values, int startingBinding) Bind the passed values to the parameters of the PreparedStatement, starting at position startBinding
static String	convertSQLExceptionToString(SQLException e)
static String	generateInBinds(int count) Generate count '? separated by comma
static String	getNextValSql(Connection conn, String tableName) Generate the correct SQL statement to obtain the next value from a sequence/table generator for the passed table.
static void	safeClose(Connection con)
static void	safeClose(Connection conn, Statement stm, ResultSet rs)
static void	safeClose(InputStream in) Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600
static void	safeClose(OutputStream out) Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600
static void	safeClose(Reader reader) Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600
static void	safeClose(ResultSet rs)
static void	safeClose(Statement statement)
static void	safeClose(Statement stm, ResultSet rs)
static void	safeClose(Writer writer) Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600
static String	transformQueryForMultipleInParameters(String query, String replaceable, int bindCount) Populate the passed query with bindCount number of placeholders '?'.

Methods inherited from class java.lang.Object

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

Constructor Detail

JDBCUtil

public JDBCUtil()

Method Detail

safeClose

public static void safeClose(Statement stm,
                             ResultSet rs)

safeClose

public static void safeClose(Connection conn,
                             Statement stm,
                             ResultSet rs)

safeClose

public static void safeClose(Connection con)

safeClose

public static void safeClose(ResultSet rs)

safeClose

public static void safeClose(Statement statement)

bindNTimes

public static void bindNTimes(PreparedStatement ps,
                              int[] values,
                              int startingBinding)
                       throws SQLException

Bind the passed values to the parameters of the PreparedStatement, starting at position startBinding

Parameters:

ps - PreparedStatement to use

values - the array of int values to fill in

startingBinding - the starting position of the parameter to fill in

Throws:

SQLException - if the Statement.setInt() call fails

transformQueryForMultipleInParameters

public static String transformQueryForMultipleInParameters(String query,
                                                           String replaceable,
                                                           int bindCount)

Populate the passed query with bindCount number of placeholders '?'. The method will not put necessary parenteses around the placeholders.

Parameters:

query - the original query including text to replace

replaceable - the part of the original query that should be replaced by '?'s.

bindCount - how many placeholders '?' should be generated

Returns:

The modified query

generateInBinds

public static String generateInBinds(int count)

Generate count '? separated by comma

getNextValSql

public static String getNextValSql(Connection conn,
                                   String tableName)

Generate the correct SQL statement to obtain the next value from a sequence/table generator for the passed table. The passed connection gets closed in case of an error.

Parameters:

conn - A valid database connection

tableName - The name of the table to use

Returns:

A statement that obtains the next value for the passed table

safeClose

@Deprecated
public static void safeClose(InputStream in)

Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600

safeClose

@Deprecated
public static void safeClose(OutputStream out)

Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600

safeClose

@Deprecated
public static void safeClose(Reader reader)

Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600

safeClose

@Deprecated
public static void safeClose(Writer writer)

Deprecated. This should correctly be handled at the place where the stream is about to be closed JBNADM-2600

convertSQLExceptionToString

public static String convertSQLExceptionToString(SQLException e)