java.lang.Object
- org.apache.jackrabbit.core.query.lucene.MultiIndex.Action

Enclosing class:: MultiIndex

public abstract static class MultiIndex.Action
extends Object

Defines an action on an MultiIndex.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`TYPE_ADD_INDEX`	Action type for add index action.
`static int`	`TYPE_ADD_NODE`	Action type for add node action.
`static int`	`TYPE_COMMIT`	Action type for commit action.
`static int`	`TYPE_CREATE_INDEX`	Action type for create index action.
`static int`	`TYPE_DELETE_INDEX`	Action type for delete index action.
`static int`	`TYPE_DELETE_NODE`	Action type for delete node action.
`static int`	`TYPE_START`	Action type for start action.
`static int`	`TYPE_VOLATILE_COMMIT`	Action type for volatile index commit action.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract void`	`execute(MultiIndex index)`	Executes this action on the `index`.
`abstract String`	`toString()`	Returns a `String` representation of this action that can be written to the `RedoLog`.
`void`	`undo(MultiIndex index)`	Executes the inverse operation of this action.

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

- Field Detail
  - TYPE_START
```
public static final int TYPE_START
```
    Action type for start action.
    
    See Also:
    
    Constant Field Values
  - TYPE_ADD_NODE
```
public static final int TYPE_ADD_NODE
```
    Action type for add node action.
    
    See Also:
    
    Constant Field Values
  - TYPE_DELETE_NODE
```
public static final int TYPE_DELETE_NODE
```
    Action type for delete node action.
    
    See Also:
    
    Constant Field Values
  - TYPE_COMMIT
```
public static final int TYPE_COMMIT
```
    Action type for commit action.
    
    See Also:
    
    Constant Field Values
  - TYPE_VOLATILE_COMMIT
```
public static final int TYPE_VOLATILE_COMMIT
```
    Action type for volatile index commit action.
    
    See Also:
    
    Constant Field Values
  - TYPE_CREATE_INDEX
```
public static final int TYPE_CREATE_INDEX
```
    Action type for create index action.
    
    See Also:
    
    Constant Field Values
  - TYPE_ADD_INDEX
```
public static final int TYPE_ADD_INDEX
```
    Action type for add index action.
    
    See Also:
    
    Constant Field Values
  - TYPE_DELETE_INDEX
```
public static final int TYPE_DELETE_INDEX
```
    Action type for delete index action.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - execute
```
public abstract void execute(MultiIndex index)
                      throws IOException
```
    Executes this action on the index.
    
    Parameters:
    
    index - the index where to execute the action.
    
    Throws:
    
    IOException - if the action fails due to some I/O error in the index or some other error.
  - undo
```
public void undo(MultiIndex index)
          throws IOException
```
    Executes the inverse operation of this action. That is, does an undo of this action. This default implementation does nothing, but returns silently.
    
    Parameters:
    
    index - the index where to undo the action.
    
    Throws:
    
    IOException - if the action cannot be undone.
  - toString
```
public abstract String toString()
```
    Returns a String representation of this action that can be written to the RedoLog.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a String representation of this action.

Class MultiIndex.Action

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

TYPE_START

TYPE_ADD_NODE

TYPE_DELETE_NODE

TYPE_COMMIT

TYPE_VOLATILE_COMMIT

TYPE_CREATE_INDEX

TYPE_ADD_INDEX

TYPE_DELETE_INDEX

Method Detail

execute

undo

toString