TruncateOnCommit (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.impl.store.raw.data.ContainerActionOnCommit
- - org.apache.derby.impl.store.raw.data.ContainerHandleActionOnCommit
  - - org.apache.derby.impl.store.raw.data.TruncateOnCommit

All Implemented Interfaces:

DerbyObserver
```
public class TruncateOnCommit
extends ContainerHandleActionOnCommit
```
Truncate a temp table on a commit, abort or rollback to savepoint

Field Summary

Fields
Modifier and Type Field Description

private boolean commitAsWell
Truncate on a commit as well.
- Fields inherited from class org.apache.derby.impl.store.raw.data.ContainerActionOnCommit
  identity

Constructor Summary

Constructors
Constructor Description

TruncateOnCommit(ContainerKey identity, boolean commitAsWell)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`doIt(BaseContainerHandle handle)`
`boolean`	`equals(java.lang.Object other)`	An equals method that returns true if the other obejct is a sub-class of this, and the container identities are equal and it is the same class as this.
`void`	`update(DerbyObservable obj, java.lang.Object arg)`	This is the callback method which is invoked when a change happens to the object which is being observed.

Methods inherited from class org.apache.derby.impl.store.raw.data.ContainerHandleActionOnCommit
openContainerAndDoIt

Methods inherited from class org.apache.derby.impl.store.raw.data.ContainerActionOnCommit
hashCode

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

- Field Detail
  - commitAsWell
```
private boolean commitAsWell
```
    Truncate on a commit as well.
- Constructor Detail
  - TruncateOnCommit
```
public TruncateOnCommit(ContainerKey identity,
                        boolean commitAsWell)
```
- Method Detail
  - update
```
public void update(DerbyObservable obj,
                   java.lang.Object arg)
```
    Description copied from interface: DerbyObserver
    
    This is the callback method which is invoked when a change happens to the object which is being observed.
    
    Parameters:
    
    obj - The object which is being observed
    
    arg - Extra information being passed to the callback
  - doIt
```
protected void doIt(BaseContainerHandle handle)
             throws StandardException
```
    Specified by:
    
    doIt in class ContainerHandleActionOnCommit
    
    Throws:
    
    StandardException - Standard Derby error policy
  - equals
```
public boolean equals(java.lang.Object other)
```
    Description copied from class: ContainerActionOnCommit
    
    An equals method that returns true if the other obejct is a sub-class of this, and the container identities are equal *and* it is the same class as this.
    This allows mutiple additions of value equality obejcts to the observer list while only retaining one.
    
    Overrides:
    
    equals in class ContainerActionOnCommit