Package org.apache.jmeter.gui
Class UndoHistory
- java.lang.Object
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- org.apache.jmeter.gui.UndoHistory
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- All Implemented Interfaces:
Serializable
,EventListener
,TreeModelListener
public class UndoHistory extends Object implements TreeModelListener, Serializable
This class serves storing Test Tree state and navigating through it to give the undo/redo ability for test plan changes- Since:
- 2.12
- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
UndoHistory.HistoryListener
Interface to be implemented by components interested in UndoHistory
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Constructor Summary
Constructors Constructor Description UndoHistory()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(JMeterTreeModel treeModel, String comment)
Add tree model copy to the historyboolean
canRedo()
boolean
canUndo()
void
clear()
Clears the undo historyvoid
moveInHistory(int offset, JMeterTreeModel acceptorModel)
Goes through undo history, changing GUIvoid
registerHistoryListener(UndoHistory.HistoryListener listener)
Register HistoryListenervoid
treeNodesChanged(TreeModelEvent tme)
Record the changes in the node as the undo stepvoid
treeNodesInserted(TreeModelEvent tme)
Record adding nodes as the undo stepvoid
treeNodesRemoved(TreeModelEvent tme)
Record deleting nodes as the undo stepvoid
treeStructureChanged(TreeModelEvent tme)
Record some other change
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Method Detail
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clear
public void clear()
Clears the undo history
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add
public void add(JMeterTreeModel treeModel, String comment)
Add tree model copy to the historyThis method relies on the rule that the record in history made AFTER change has been made to test plan
- Parameters:
treeModel
- JMeterTreeModelcomment
- String
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moveInHistory
public void moveInHistory(int offset, JMeterTreeModel acceptorModel)
Goes through undo history, changing GUI- Parameters:
offset
- the direction to go to, usually -1 for undo or 1 for redoacceptorModel
- TreeModel to accept the changes
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canRedo
public boolean canRedo()
- Returns:
- true if remaing items
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canUndo
public boolean canUndo()
- Returns:
- true if not at first element
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treeNodesChanged
public void treeNodesChanged(TreeModelEvent tme)
Record the changes in the node as the undo step- Specified by:
treeNodesChanged
in interfaceTreeModelListener
- Parameters:
tme
-TreeModelEvent
with event details
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treeNodesInserted
public void treeNodesInserted(TreeModelEvent tme)
Record adding nodes as the undo step- Specified by:
treeNodesInserted
in interfaceTreeModelListener
- Parameters:
tme
-TreeModelEvent
with event details
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treeNodesRemoved
public void treeNodesRemoved(TreeModelEvent tme)
Record deleting nodes as the undo step- Specified by:
treeNodesRemoved
in interfaceTreeModelListener
- Parameters:
tme
-TreeModelEvent
with event details
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treeStructureChanged
public void treeStructureChanged(TreeModelEvent tme)
Record some other change- Specified by:
treeStructureChanged
in interfaceTreeModelListener
- Parameters:
tme
-TreeModelEvent
with event details
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registerHistoryListener
public void registerHistoryListener(UndoHistory.HistoryListener listener)
Register HistoryListener- Parameters:
listener
- to add to our listeners
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