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java.lang.Objectcom.sun.electric.database.change.Undo
public class Undo
This interface defines changes that are made to the database.
Nested Class Summary | |
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static class |
Undo.ChangeBatch
Class to describe a batch of changes to the Electric database. |
static class |
Undo.UndoJob
Class to schedule an undo in a separate Job. |
Constructor Summary | |
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Undo()
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Method Summary | |
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static int |
endChanges(Snapshot oldSnapshot,
Tool tool,
java.lang.String activity,
Snapshot newSnapshot)
Method to terminate the current batch of changes. |
static void |
noRedoAllowed()
Method to prevent redo by deleting all undone change batches. |
static void |
redo()
Method to redo a change. |
static int |
setHistoryListSize(int newSize)
Method to set the size of the history list and return the former size. |
static void |
showHistoryList()
Method to display all changes. |
static void |
undo()
Method to undo a change. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Undo()
Method Detail |
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public static int endChanges(Snapshot oldSnapshot, Tool tool, java.lang.String activity, Snapshot newSnapshot)
public static void undo()
public static void redo()
public static void noRedoAllowed()
public static int setHistoryListSize(int newSize)
newSize
- the new size of the history list (number of batches of changes).
If not positive, the list size is not changed.
public static void showHistoryList()
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