org.apache.jackrabbit.core.util.db
Class Oracle10R1ConnectionHelper

java.lang.Object
  org.apache.jackrabbit.core.util.db.ConnectionHelper
      org.apache.jackrabbit.core.util.db.OracleConnectionHelper
          org.apache.jackrabbit.core.util.db.Oracle10R1ConnectionHelper

public final class Oracle10R1ConnectionHelper
extends OracleConnectionHelper

The connection helper for Oracle databases of version up to 10.1. It has special blob handling.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.jackrabbit.core.util.db.ConnectionHelper

ConnectionHelper.RetryManager<T>

Field Summary

Fields inherited from class org.apache.jackrabbit.core.util.db.ConnectionHelper

dataSource

Constructor Summary

Oracle10R1ConnectionHelper(DataSource dataSrc, boolean block)

Method Summary

protected PreparedStatement	execute(PreparedStatement stmt, Object[] params) Wraps any input-stream parameters in temporary blobs and frees these again after the statement has been executed.
void	init() Retrieve the oracle.sql.BLOB class via reflection, and initialize the values for the DURATION_SESSION and MODE_READWRITE constants defined there.

Methods inherited from class org.apache.jackrabbit.core.util.db.OracleConnectionHelper

replaceCharacter

Methods inherited from class org.apache.jackrabbit.core.util.db.ConnectionHelper

closeResources, endBatch, exec, exec, getConnection, inBatchMode, prepareDbIdentifier, startBatch, tableExists, update

Methods inherited from class java.lang.Object

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

Constructor Detail

Oracle10R1ConnectionHelper

public Oracle10R1ConnectionHelper(DataSource dataSrc,
                                  boolean block)

Parameters:

dataSrc - the DataSource on which this helper acts

block - whether to block on connection loss until the db is up again

Method Detail

init

public void init()
          throws Exception

Retrieve the oracle.sql.BLOB class via reflection, and initialize the values for the DURATION_SESSION and MODE_READWRITE constants defined there.

Overrides:

init in class OracleConnectionHelper

Throws:

Exception - on error

See Also:

oracle.sql.BLOB#DURATION_SESSION, oracle.sql.BLOB#MODE_READWRITE

execute

protected PreparedStatement execute(PreparedStatement stmt,
                                    Object[] params)
                             throws SQLException

Wraps any input-stream parameters in temporary blobs and frees these again after the statement has been executed. This method is used by all methods of this class that execute SQL statements. This default implementation sets all parameters and unwraps StreamWrapper instances. Subclasses may override this method to do something special with the parameters. E.g., the Oracle10R1ConnectionHelper overrides it in order to add special blob handling.

Overrides:

execute in class ConnectionHelper

Parameters:

stmt - the PreparedStatement to execute

params - the parameters

Returns:

the executed statement

Throws:

SQLException - on error