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Java Source Code / Java Documentation » Search Engine » compass 2.0 » org.apache.lucene.store.jdbc.datasource 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.lucene.store.jdbc.datasource.DataSourceUtils

DataSourceUtils
abstract public class DataSourceUtils (Code)
A set of Jdbc DataSource utilities.
author:
   kimchy




Method Summary
public static  voidcloseResultSet(ResultSet rs)
     Close the given JDBC ResultSet and ignore any thrown exception.
public static  voidcloseStatement(Statement stmt)
     Close the given JDBC Statement and ignore any thrown exception.
public static  voidcommitConnectionIfPossible(Connection con)
     Commits the connection only if the connection is controlled by us.
public static  booleancontrolConnection(Connection connection)
     Returns true if the connection was created by the TransactionAwareDataSourceProxy and it controls the connection (i.e.
public static  intgetColumnIndexFromColumnName(ResultSetMetaData metaData, String columnName)
     Returns the column index for the guven column name.
public static  ConnectiongetConnection(DataSource dataSource)
     Returns a jdbc connection, and in case of failure, wraps the sql exception with a Jdbc device exception.
public static  ConnectiongetTargetConnection(Connection conn)
    
public static  voidreleaseConnection(Connection con)
     Close the given JDBC connection and ignore any thrown exception.
public static  voidrollbackConnectionIfPossible(Connection con)
     Tollbacks the connection only if the connection is controlled by us.
public static  voidsafeCommitConnectionIfPossible(Connection con)
    
public static  voidsafeRollbackConnectionIfPossible(Connection con)
     Same as DataSourceUtils.rollbackConnectionIfPossible(java.sql.Connection) , only does not throw an exception.



Method Detail
closeResultSet
public static void closeResultSet(ResultSet rs)(Code)
Close the given JDBC ResultSet and ignore any thrown exception. This is useful for typical finally blocks in manual JDBC code.
Parameters:
  rs - the JDBC ResultSet to close



closeStatement
public static void closeStatement(Statement stmt)(Code)
Close the given JDBC Statement and ignore any thrown exception. This is useful for typical finally blocks in manual JDBC code.
Parameters:
  stmt - the JDBC Statement to close



commitConnectionIfPossible
public static void commitConnectionIfPossible(Connection con) throws JdbcStoreException(Code)
Commits the connection only if the connection is controlled by us. The connection is controlled if it is the TransactionAwareDataSourceProxy and it is the most outer connection in the tree of connections the TransactionAwareDataSourceProxy returned.



controlConnection
public static boolean controlConnection(Connection connection)(Code)
Returns true if the connection was created by the TransactionAwareDataSourceProxy and it controls the connection (i.e. it is the most outer connection created).



getColumnIndexFromColumnName
public static int getColumnIndexFromColumnName(ResultSetMetaData metaData, String columnName) throws SQLException(Code)
Returns the column index for the guven column name. Note that if there are two columns with the same name, the first onde index will be returned.

-1 is returned if none is found.




getConnection
public static Connection getConnection(DataSource dataSource) throws JdbcStoreException(Code)
Returns a jdbc connection, and in case of failure, wraps the sql exception with a Jdbc device exception.



getTargetConnection
public static Connection getTargetConnection(Connection conn)(Code)



releaseConnection
public static void releaseConnection(Connection con)(Code)
Close the given JDBC connection and ignore any thrown exception. This is useful for typical finally blocks in manual JDBC code.

Will only close the connection under two conditions: If the connection was not created by the TransactionAwareDataSourceProxy , or if it was created by TransactionAwareDataSourceProxy , and the connection controls the connection (i.e. it is the most outer connection created).




rollbackConnectionIfPossible
public static void rollbackConnectionIfPossible(Connection con) throws JdbcStoreException(Code)
Tollbacks the connection only if the connection is controlled by us. The connection is controlled if it is the TransactionAwareDataSourceProxy and it is the most outer connection in the tree of connections the TransactionAwareDataSourceProxy returned.



safeCommitConnectionIfPossible
public static void safeCommitConnectionIfPossible(Connection con)(Code)
Same as DataSourceUtils.commitConnectionIfPossible(java.sql.Connection) , only does not throw an exception



safeRollbackConnectionIfPossible
public static void safeRollbackConnectionIfPossible(Connection con)(Code)
Same as DataSourceUtils.rollbackConnectionIfPossible(java.sql.Connection) , only does not throw an exception.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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