List of usage examples for org.springframework.jdbc.datasource ConnectionHolder getConnection
public Connection getConnection()
From source file:com.avaje.ebean.springsupport.txn.SpringJdbcTransaction.java
public SpringJdbcTransaction(ConnectionHolder holder, TransactionManager manager) { super("s" + holder.hashCode(), true, holder.getConnection(), manager); this.holder = holder; }
From source file:org.springframework.jdbc.datasource.DataSourceUtils.java
/** * Actually obtain a JDBC Connection from the given DataSource. * Same as {@link #getConnection}, but throwing the original SQLException. * <p>Is aware of a corresponding Connection bound to the current thread, for example * when using {@link DataSourceTransactionManager}. Will bind a Connection to the thread * if transaction synchronization is active (e.g. if in a JTA transaction). * <p>Directly accessed by {@link TransactionAwareDataSourceProxy}. * @param dataSource the DataSource to obtain Connections from * @return a JDBC Connection from the given DataSource * @throws SQLException if thrown by JDBC methods * @see #doReleaseConnection// w w w .j a v a2s . c o m */ public static Connection doGetConnection(DataSource dataSource) throws SQLException { Assert.notNull(dataSource, "No DataSource specified"); ConnectionHolder conHolder = (ConnectionHolder) TransactionSynchronizationManager.getResource(dataSource); if (conHolder != null && (conHolder.hasConnection() || conHolder.isSynchronizedWithTransaction())) { conHolder.requested(); if (!conHolder.hasConnection()) { logger.debug("Fetching resumed JDBC Connection from DataSource"); conHolder.setConnection(fetchConnection(dataSource)); } return conHolder.getConnection(); } // Else we either got no holder or an empty thread-bound holder here. logger.debug("Fetching JDBC Connection from DataSource"); Connection con = fetchConnection(dataSource); if (TransactionSynchronizationManager.isSynchronizationActive()) { logger.debug("Registering transaction synchronization for JDBC Connection"); // Use same Connection for further JDBC actions within the transaction. // Thread-bound object will get removed by synchronization at transaction completion. ConnectionHolder holderToUse = conHolder; if (holderToUse == null) { holderToUse = new ConnectionHolder(con); } else { holderToUse.setConnection(con); } holderToUse.requested(); TransactionSynchronizationManager .registerSynchronization(new ConnectionSynchronization(holderToUse, dataSource)); holderToUse.setSynchronizedWithTransaction(true); if (holderToUse != conHolder) { TransactionSynchronizationManager.bindResource(dataSource, holderToUse); } } return con; }
From source file:org.springframework.jdbc.datasource.DataSourceUtils.java
/** * Determine whether the given two Connections are equal, asking the target * Connection in case of a proxy. Used to detect equality even if the * user passed in a raw target Connection while the held one is a proxy. * @param conHolder the ConnectionHolder for the held Connection (potentially a proxy) * @param passedInCon the Connection passed-in by the user * (potentially a target Connection without proxy) * @return whether the given Connections are equal * @see #getTargetConnection//from www . ja va 2 s.c o m */ private static boolean connectionEquals(ConnectionHolder conHolder, Connection passedInCon) { if (!conHolder.hasConnection()) { return false; } Connection heldCon = conHolder.getConnection(); // Explicitly check for identity too: for Connection handles that do not implement // "equals" properly, such as the ones Commons DBCP exposes). return (heldCon == passedInCon || heldCon.equals(passedInCon) || getTargetConnection(heldCon).equals(passedInCon)); }
From source file:org.springframework.jdbc.datasource.JdbcTransactionObjectSupport.java
/** * This implementation rolls back to the given JDBC 3.0 Savepoint. * @see java.sql.Connection#rollback(java.sql.Savepoint) *//*from w w w .j av a 2 s .co m*/ @Override public void rollbackToSavepoint(Object savepoint) throws TransactionException { ConnectionHolder conHolder = getConnectionHolderForSavepoint(); try { conHolder.getConnection().rollback((Savepoint) savepoint); conHolder.resetRollbackOnly(); } catch (Throwable ex) { throw new TransactionSystemException("Could not roll back to JDBC savepoint", ex); } }
From source file:org.springframework.jdbc.datasource.JdbcTransactionObjectSupport.java
/** * This implementation releases the given JDBC 3.0 Savepoint. * @see java.sql.Connection#releaseSavepoint *//*from w ww .java 2 s .co m*/ @Override public void releaseSavepoint(Object savepoint) throws TransactionException { ConnectionHolder conHolder = getConnectionHolderForSavepoint(); try { conHolder.getConnection().releaseSavepoint((Savepoint) savepoint); } catch (Throwable ex) { logger.debug("Could not explicitly release JDBC savepoint", ex); } }