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## org.quartz.impl.jdbcjobstore
Class AttributeRestoringConnectionInvocationHandler

    java.lang.Object
      org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler

All Implemented Interfaces:
  InvocationHandler

    public class AttributeRestoringConnectionInvocationHandler

extends Object
implements InvocationHandler

Protects a ``Connection``'s attributes from being permanently modfied.

Wraps a provided ``Connection`` such that its auto commit and transaction isolation attributes can be overwritten, but will automatically restored to their original values when the connection is actually closed (and potentially returned to a pool for reuse).

See Also:
  `JobStoreSupport.getConnection()`, `JobStoreCMT.getNonManagedTXConnection()`

Constructor Summary
`AttributeRestoringConnectionInvocationHandler(Connection conn)`

Method Summary
`void` | `close()` Attempts to restore the auto commit and transaction isolation connection attributes of the wrapped connection to their original values (if they were overwritten), before finally actually closing the wrapped connection.
`protected org.slf4j.Logger` | `getLog()`
`Connection` | `getWrappedConnection()` Gets the underlying connection to which all operations ultimately defer.
`Object` | `invoke(Object proxy, Method method, Object[] args)`
`void` | `restoreOriginalAtributes()` Attempts to restore the auto commit and transaction isolation connection attributes of the wrapped connection to their original values (if they were overwritten).
`void` | `setAutoCommit(boolean autoCommit)` Sets this connection's auto-commit mode to the given state, saving the original mode.
`void` | `setTransactionIsolation(int level)` Attempts to change the transaction isolation level to the given level, saving the original level.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### AttributeRestoringConnectionInvocationHandler

    public AttributeRestoringConnectionInvocationHandler(Connection conn)

Method Detail

### getLog

    protected org.slf4j.Logger getLog()

### invoke

    public Object invoke(Object proxy,
                         Method method,
                         Object[] args)
                  throws Throwable

  Specified by:
    `invoke` in interface `InvocationHandler`
  Throws:
    `Throwable`

### setAutoCommit

    public void setAutoCommit(boolean autoCommit)
                       throws SQLException

  Sets this connection's auto-commit mode to the given state, saving the original mode. The connection's original auto commit mode is restored when the connection is closed.

  Throws:
    `SQLException`

### setTransactionIsolation

    public void setTransactionIsolation(int level)
                                 throws SQLException

  Attempts to change the transaction isolation level to the given level, saving the original level. The connection's original transaction isolation level is restored when the connection is closed.

  Throws:
    `SQLException`

### getWrappedConnection

    public Connection getWrappedConnection()

  Gets the underlying connection to which all operations ultimately defer. This is provided in case a user ever needs to punch through the wrapper to access vendor specific methods outside of the standard `java.sql.Connection` interface.

  Returns:
    The underlying connection to which all operations ultimately defer.

### restoreOriginalAtributes

    public void restoreOriginalAtributes()

  Attempts to restore the auto commit and transaction isolation connection attributes of the wrapped connection to their original values (if they were overwritten).

### close

    public void close()
               throws SQLException

  Attempts to restore the auto commit and transaction isolation connection attributes of the wrapped connection to their original values (if they were overwritten), before finally actually closing the wrapped connection.

  Throws:
    `SQLException`

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