Package org.apache.openjpa.lib.jdbc

Class DelegatingConnection

java.lang.Object

org.apache.openjpa.lib.jdbc.DelegatingConnection

All Implemented Interfaces:

AutoCloseable, Connection, Wrapper, Closeable

Direct Known Subclasses:

ConfiguringConnectionDecorator.ConfiguringConnection, JDBCStoreManager.ClientConnection, JDBCStoreManager.RefCountConnection, LoggingConnectionDecorator.LoggingConnection, PostgresDictionary.PostgresConnection, SybaseDictionary.SybaseConnection

public class DelegatingConnection
extends Object
implements Connection, Closeable

Wrapper around an existing connection. Subclasses can override the methods whose behavior they mean to change. The equals and hashCode methods pass through to the base underlying data store connection.

Author:

Abe White

Field Summary

Fields inherited from interface java.sql.Connection

TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE

Constructor Summary

Constructors

Constructor	Description
DelegatingConnection(Connection conn)

Method Summary

Modifier and Type	Method	Description
void	abort(Executor executor)
protected void	appendInfo(StringBuffer buf)
void	clearWarnings()
void	close()
void	commit()
Array	createArrayOf(String typeName, Object[] elements)
Blob	createBlob()
Clob	createClob()
NClob	createNClob()
SQLXML	createSQLXML()
Statement	createStatement()
protected Statement	createStatement(boolean wrap)	Create a statement, with the option of not wrapping it in a DelegatingStatement, which is the default.
Statement	createStatement(int type, int concur)
protected Statement	createStatement(int type, int concur, boolean wrap)	Create a statement, with the option of not wrapping it in a DelegatingStatement, which is the default.
Statement	createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
protected Statement	createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability, boolean wrap)
Struct	createStruct(String typeName, Object[] attributes)
boolean	equals(Object other)
boolean	getAutoCommit()
String	getCatalog()
Properties	getClientInfo()
String	getClientInfo(String name)
Connection	getDelegate()	Return the wrapped connection.
int	getHoldability()
Connection	getInnermostDelegate()	Return the base underlying data store connection.
DatabaseMetaData	getMetaData()
protected DatabaseMetaData	getMetaData(boolean wrap)	Return the metadata, with the option of not wrapping it in a DelegatingDatabaseMetaData, which is the default.
int	getNetworkTimeout()
String	getSchema()
int	getTransactionIsolation()
Map<String,Class<?>>	getTypeMap()
SQLWarning	getWarnings()
int	hashCode()
boolean	isClosed()
boolean	isReadOnly()
boolean	isValid(int timeout)
boolean	isWrapperFor(Class<?> iface)
String	nativeSQL(String str)
CallableStatement	prepareCall(String str)
protected CallableStatement	prepareCall(String str, boolean wrap)	Prepare a call, with the option of not wrapping it in a DelegatingCallableStatement, which is the default.
CallableStatement	prepareCall(String str, int type, int concur)
protected CallableStatement	prepareCall(String str, int type, int concur, boolean wrap)	Prepare a call, with the option of not wrapping it in a DelegatingCallableStatement, which is the default.
CallableStatement	prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
protected CallableStatement	prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability, boolean wrap)
PreparedStatement	prepareStatement(String str)
protected PreparedStatement	prepareStatement(String str, boolean wrap)	Prepare a statement, with the option of not wrapping it in a DelegatingPreparedStatement, which is the default.
PreparedStatement	prepareStatement(String sql, int autoGeneratedKeys)
PreparedStatement	prepareStatement(String sql, int[] columnIndexes)
protected PreparedStatement	prepareStatement(String sql, int[] columnIndexes, boolean wrap)
protected PreparedStatement	prepareStatement(String sql, int autoGeneratedKeys, boolean wrap)
PreparedStatement	prepareStatement(String str, int type, int concur)
protected PreparedStatement	prepareStatement(String str, int type, int concur, boolean wrap)	Prepare a statement, with the option of not wrapping it in a DelegatingPreparedStatement, which is the default.
PreparedStatement	prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
protected PreparedStatement	prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability, boolean wrap)
PreparedStatement	prepareStatement(String sql, String[] columnNames)
protected PreparedStatement	prepareStatement(String sql, String[] columnNames, boolean wrap)
void	releaseSavepoint(Savepoint savepoint)
void	rollback()
void	rollback(Savepoint savepoint)
void	setAutoCommit(boolean bool)
void	setCatalog(String str)
void	setClientInfo(String name, String value)
void	setClientInfo(Properties properties)
void	setHoldability(int holdability)
void	setNetworkTimeout(Executor executor, int milliseconds)
void	setReadOnly(boolean bool)
Savepoint	setSavepoint()
Savepoint	setSavepoint(String savepoint)
void	setSchema(String schema)
void	setTransactionIsolation(int i)
void	setTypeMap(Map<String,Class<?>> map)
String	toString()
<T> T	unwrap(Class<T> iface)	From java.sql.Wrapper javadoc: Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.sql.Connection

beginRequest, endRequest, setShardingKey, setShardingKey, setShardingKeyIfValid, setShardingKeyIfValid

Constructor Details

DelegatingConnection

public DelegatingConnection(Connection conn)

Method Details

getDelegate

public Connection getDelegate()

Return the wrapped connection.

getInnermostDelegate

public Connection getInnermostDelegate()

Return the base underlying data store connection.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

appendInfo

protected void appendInfo(StringBuffer buf)

createStatement

public Statement createStatement()
                          throws SQLException

Specified by:

createStatement in interface Connection

Throws:

SQLException

createStatement

protected Statement createStatement(boolean wrap)
                             throws SQLException

Create a statement, with the option of not wrapping it in a DelegatingStatement, which is the default.

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String str)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

protected PreparedStatement prepareStatement(String str,
 boolean wrap)
                                      throws SQLException

Prepare a statement, with the option of not wrapping it in a DelegatingPreparedStatement, which is the default.

Throws:

SQLException

prepareCall

public CallableStatement prepareCall(String str)
                              throws SQLException

Specified by:

prepareCall in interface Connection

Throws:

SQLException

prepareCall

protected CallableStatement prepareCall(String str,
 boolean wrap)
                                 throws SQLException

Prepare a call, with the option of not wrapping it in a DelegatingCallableStatement, which is the default.

Throws:

SQLException

nativeSQL

public String nativeSQL(String str)
                 throws SQLException

Specified by:

nativeSQL in interface Connection

Throws:

SQLException

setAutoCommit

public void setAutoCommit(boolean bool)
                   throws SQLException

Specified by:

setAutoCommit in interface Connection

Throws:

SQLException

getAutoCommit

public boolean getAutoCommit()
                      throws SQLException

Specified by:

getAutoCommit in interface Connection

Throws:

SQLException

commit

public void commit()
            throws SQLException

Specified by:

commit in interface Connection

Throws:

SQLException

rollback

public void rollback()
              throws SQLException

Specified by:

rollback in interface Connection

Throws:

SQLException

close

public void close()
           throws SQLException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface Connection

Throws:

SQLException

isClosed

public boolean isClosed()
                 throws SQLException

Specified by:

isClosed in interface Connection

Throws:

SQLException

getMetaData

public DatabaseMetaData getMetaData()
                             throws SQLException

Specified by:

getMetaData in interface Connection

Throws:

SQLException

getMetaData

protected DatabaseMetaData getMetaData(boolean wrap)
                                throws SQLException

Return the metadata, with the option of not wrapping it in a DelegatingDatabaseMetaData, which is the default.

Throws:

SQLException

setReadOnly

public void setReadOnly(boolean bool)
                 throws SQLException

Specified by:

setReadOnly in interface Connection

Throws:

SQLException

isReadOnly

public boolean isReadOnly()
                   throws SQLException

Specified by:

isReadOnly in interface Connection

Throws:

SQLException

setCatalog

public void setCatalog(String str)
                throws SQLException

Specified by:

setCatalog in interface Connection

Throws:

SQLException

getCatalog

public String getCatalog()
                  throws SQLException

Specified by:

getCatalog in interface Connection

Throws:

SQLException

setTransactionIsolation

public void setTransactionIsolation(int i)
                             throws SQLException

Specified by:

setTransactionIsolation in interface Connection

Throws:

SQLException

getTransactionIsolation

public int getTransactionIsolation()
                            throws SQLException

Specified by:

getTransactionIsolation in interface Connection

Throws:

SQLException

getWarnings

public SQLWarning getWarnings()
                       throws SQLException

Specified by:

getWarnings in interface Connection

Throws:

SQLException

clearWarnings

public void clearWarnings()
                   throws SQLException

Specified by:

clearWarnings in interface Connection

Throws:

SQLException

createStatement

public Statement createStatement(int type,
 int concur)
                          throws SQLException

Specified by:

createStatement in interface Connection

Throws:

SQLException

createStatement

protected Statement createStatement(int type,
 int concur,
 boolean wrap)
                             throws SQLException

Create a statement, with the option of not wrapping it in a DelegatingStatement, which is the default.

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String str,
 int type,
 int concur)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

protected PreparedStatement prepareStatement(String str,
 int type,
 int concur,
 boolean wrap)
                                      throws SQLException

Prepare a statement, with the option of not wrapping it in a DelegatingPreparedStatement, which is the default.

Throws:

SQLException

prepareCall

public CallableStatement prepareCall(String str,
 int type,
 int concur)
                              throws SQLException

Specified by:

prepareCall in interface Connection

Throws:

SQLException

prepareCall

protected CallableStatement prepareCall(String str,
 int type,
 int concur,
 boolean wrap)
                                 throws SQLException

Prepare a call, with the option of not wrapping it in a DelegatingCallableStatement, which is the default.

Throws:

SQLException

getTypeMap

public Map<String,Class<?>> getTypeMap()
                                throws SQLException

Specified by:

getTypeMap in interface Connection

Throws:

SQLException

setTypeMap

public void setTypeMap(Map<String,Class<?>> map)
                throws SQLException

Specified by:

setTypeMap in interface Connection

Throws:

SQLException

setHoldability

public void setHoldability(int holdability)
                    throws SQLException

Specified by:

setHoldability in interface Connection

Throws:

SQLException

getHoldability

public int getHoldability()
                   throws SQLException

Specified by:

getHoldability in interface Connection

Throws:

SQLException

setSavepoint

public Savepoint setSavepoint()
                       throws SQLException

Specified by:

setSavepoint in interface Connection

Throws:

SQLException

setSavepoint

public Savepoint setSavepoint(String savepoint)
                       throws SQLException

Specified by:

setSavepoint in interface Connection

Throws:

SQLException

rollback

public void rollback(Savepoint savepoint)
              throws SQLException

Specified by:

rollback in interface Connection

Throws:

SQLException

releaseSavepoint

public void releaseSavepoint(Savepoint savepoint)
                      throws SQLException

Specified by:

releaseSavepoint in interface Connection

Throws:

SQLException

createStatement

public Statement createStatement(int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability)
                          throws SQLException

Specified by:

createStatement in interface Connection

Throws:

SQLException

createStatement

protected Statement createStatement(int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability,
 boolean wrap)
                             throws SQLException

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

protected PreparedStatement prepareStatement(String sql,
 int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability,
 boolean wrap)
                                      throws SQLException

Throws:

SQLException

prepareCall

public CallableStatement prepareCall(String sql,
 int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability)
                              throws SQLException

Specified by:

prepareCall in interface Connection

Throws:

SQLException

prepareCall

protected CallableStatement prepareCall(String sql,
 int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability,
 boolean wrap)
                                 throws SQLException

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int autoGeneratedKeys)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

protected PreparedStatement prepareStatement(String sql,
 int autoGeneratedKeys,
 boolean wrap)
                                      throws SQLException

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int[] columnIndexes)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

protected PreparedStatement prepareStatement(String sql,
 int[] columnIndexes,
 boolean wrap)
                                      throws SQLException

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 String[] columnNames)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

protected PreparedStatement prepareStatement(String sql,
 String[] columnNames,
 boolean wrap)
                                      throws SQLException

Throws:

SQLException

isWrapperFor

public boolean isWrapperFor(Class<?> iface)
                     throws SQLException

Specified by:

isWrapperFor in interface Wrapper

Throws:

SQLException

unwrap

public <T> T unwrap(Class<T> iface)
             throws SQLException

From java.sql.Wrapper javadoc: Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy. If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of calling unwrap recursively on the wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface, then an SQLException is thrown.

Specified by:

unwrap in interface Wrapper

Throws:

SQLException

createArrayOf

public Array createArrayOf(String typeName,
 Object[] elements)
                    throws SQLException

Specified by:

createArrayOf in interface Connection

Throws:

SQLException

createBlob

public Blob createBlob()
                throws SQLException

Specified by:

createBlob in interface Connection

Throws:

SQLException

createClob

public Clob createClob()
                throws SQLException

Specified by:

createClob in interface Connection

Throws:

SQLException

createNClob

public NClob createNClob()
                  throws SQLException

Specified by:

createNClob in interface Connection

Throws:

SQLException

createSQLXML

public SQLXML createSQLXML()
                    throws SQLException

Specified by:

createSQLXML in interface Connection

Throws:

SQLException

createStruct

public Struct createStruct(String typeName,
 Object[] attributes)
                    throws SQLException

Specified by:

createStruct in interface Connection

Throws:

SQLException

getClientInfo

public Properties getClientInfo()
                         throws SQLException

Specified by:

getClientInfo in interface Connection

Throws:

SQLException

getClientInfo

public String getClientInfo(String name)
                     throws SQLException

Specified by:

getClientInfo in interface Connection

Throws:

SQLException

isValid

public boolean isValid(int timeout)
                throws SQLException

Specified by:

isValid in interface Connection

Throws:

SQLException

setClientInfo

public void setClientInfo(Properties properties)
                   throws SQLClientInfoException

Specified by:

setClientInfo in interface Connection

Throws:

SQLClientInfoException

setClientInfo

public void setClientInfo(String name,
 String value)
                   throws SQLClientInfoException

Specified by:

setClientInfo in interface Connection

Throws:

SQLClientInfoException

abort

public void abort(Executor executor)
           throws SQLException

Specified by:

abort in interface Connection

Throws:

SQLException

getNetworkTimeout

public int getNetworkTimeout()
                      throws SQLException

Specified by:

getNetworkTimeout in interface Connection

Throws:

SQLException

setNetworkTimeout

public void setNetworkTimeout(Executor executor,
 int milliseconds)
                       throws SQLException

Specified by:

setNetworkTimeout in interface Connection

Throws:

SQLException

getSchema

public String getSchema()
                 throws SQLException

Specified by:

getSchema in interface Connection

Throws:

SQLException

setSchema

public void setSchema(String schema)
               throws SQLException

Specified by:

setSchema in interface Connection

Throws:

SQLException