Apache JMeter

org.apache.jmeter.gui
Class AbstractJMeterGuiComponent

java.lang.Object
  extended by java.awt.Component
      extended by java.awt.Container
          extended by javax.swing.JComponent
              extended by javax.swing.JPanel
                  extended by org.apache.jmeter.gui.AbstractJMeterGuiComponent
All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, Accessible, ClearGui, JMeterGUIComponent, Printable
Direct Known Subclasses:
AbstractConfigGui, AbstractControllerGui, AbstractListenerGui, AbstractPreProcessorGui, AbstractReportGui, AbstractSamplerGui, AbstractScopedJMeterGuiComponent, AbstractThreadGroupGui, AbstractTimerGui, ObsoleteGui, TestBeanGUI, TestPlanGui, WorkBenchGui

public abstract class AbstractJMeterGuiComponent
extends JPanel
implements JMeterGUIComponent, Printable

This abstract class takes care of the most basic functions necessary to create a viable JMeter GUI component. It extends JPanel and implements JMeterGUIComponent. This abstract class is, in turn, extended by several other abstract classes that create different classes of GUI components for JMeter (Visualizers, Timers, Samplers, Modifiers, Controllers, etc).

See Also:
JMeterGUIComponent, AbstractConfigGui, AbstractAssertionGui, AbstractControllerGui, AbstractTimerGui, AbstractVisualizer, AbstractSamplerGui, Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class javax.swing.JPanel
JPanel.AccessibleJPanel
 
Nested classes/interfaces inherited from class javax.swing.JComponent
JComponent.AccessibleJComponent
 
Nested classes/interfaces inherited from class java.awt.Container
Container.AccessibleAWTContainer
 
Nested classes/interfaces inherited from class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
 
Field Summary
protected  NamePanel namePanel
          A GUI panel containing the name of this component.
 
Fields inherited from class javax.swing.JComponent
accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
 
Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
 
Fields inherited from interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
 
Constructor Summary
AbstractJMeterGuiComponent()
          When constructing a new component, this takes care of basic tasks like setting up the Name Panel and assigning the class's static label as the name to start.
 
Method Summary
 void clearGui()
          Provides a default implementation that resets the name field to the value of getStaticLabel(), reset comment and sets enabled to true.
 void configure(TestElement element)
          A newly created gui component can be initialized with the contents of a Test Element object by calling this method.
protected  void configureTestElement(TestElement mc)
          This provides a convenience for extenders when they implement the JMeterGUIComponent.modifyTestElement(TestElement) method.
protected  Component createTitleLabel()
          Provides a label containing the title for the component.
 String getComment()
          Provides a default implementation for the comment property.
 String getDocAnchor()
          Compute Anchor value to find reference in documentation for a particular component
 String getName()
          Provides a default implementation for the name property.
protected  NamePanel getNamePanel()
          Provides the Name Panel for extending classes.
 JComponent getPrintableComponent()
          Subclasses need to over-ride this method, if they wish to return something other than the Visualizer itself.
 String getStaticLabel()
          Get the component's label.
 boolean isEnabled()
          Provides a default implementation for the enabled property.
protected  Border makeBorder()
          Create a top-level Border which can be added to JMeter components.
protected  JScrollPane makeScrollPane(Component comp)
          Create a scroll panel that sets it's preferred size to it's minimum size.
protected  JScrollPane makeScrollPane(Component comp, int verticalPolicy, int horizontalPolicy)
          Create a scroll panel that sets it's preferred size to it's minimum size.
protected  Container makeTitlePanel()
          Create a standard title section for JMeter components.
 void setComment(String comment)
          Provides a default implementation for setting the comment property.
 void setEnabled(boolean e)
          Provides a default implementation for the enabled property.
 void setName(String name)
          Provides a default implementation for setting the name property.
 
Methods inherited from class javax.swing.JPanel
getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI
 
Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
 
Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.apache.jmeter.gui.JMeterGUIComponent
createPopupMenu, createTestElement, getLabelResource, getMenuCategories, modifyTestElement
 

Field Detail

namePanel

protected NamePanel namePanel
A GUI panel containing the name of this component.

Constructor Detail

AbstractJMeterGuiComponent

public AbstractJMeterGuiComponent()
When constructing a new component, this takes care of basic tasks like setting up the Name Panel and assigning the class's static label as the name to start.

Method Detail

setName

public void setName(String name)
Provides a default implementation for setting the name property. It's unlikely developers will need to override.

Specified by:
setName in interface JMeterGUIComponent
Overrides:
setName in class Component
Parameters:
name - the name of the component

setComment

public void setComment(String comment)
Provides a default implementation for setting the comment property. It's unlikely developers will need to override.


isEnabled

public boolean isEnabled()
Provides a default implementation for the enabled property. It's unlikely developers will need to override.

Specified by:
isEnabled in interface JMeterGUIComponent
Overrides:
isEnabled in class Component
Returns:
true if the element should be part of the test run, false otherwise

setEnabled

public void setEnabled(boolean e)
Provides a default implementation for the enabled property. It's unlikely developers will need to override.

Specified by:
setEnabled in interface JMeterGUIComponent
Overrides:
setEnabled in class JComponent
Parameters:
e - true for enabled, false for disabled.

getName

public String getName()
Provides a default implementation for the name property. It's unlikely developers will need to override.

Specified by:
getName in interface JMeterGUIComponent
Overrides:
getName in class Component
Returns:
the name of the component

getComment

public String getComment()
Provides a default implementation for the comment property. It's unlikely developers will need to override.


getNamePanel

protected NamePanel getNamePanel()
Provides the Name Panel for extending classes. Extending classes are free to place it as desired within the component, or not at all. Most components place the NamePanel automatically by calling makeTitlePanel() instead of directly calling this method.

Returns:
a NamePanel containing the name of this component

createTitleLabel

protected Component createTitleLabel()
Provides a label containing the title for the component. Subclasses typically place this label at the top of their GUI. The title is set to the name returned from the component's getStaticLabel() method. Most components place this label automatically by calling makeTitlePanel() instead of directly calling this method.

Returns:
a JLabel which subclasses can add to their GUI

configure

public void configure(TestElement element)
A newly created gui component can be initialized with the contents of a Test Element object by calling this method. The component is responsible for querying the Test Element object for the relevant information to display in its GUI.

AbstractJMeterGuiComponent provides a partial implementation of this method, setting the name of the component and its enabled status. Subclasses should override this method, performing their own configuration as needed, but also calling this super-implementation.

Specified by:
configure in interface JMeterGUIComponent
Parameters:
element - the TestElement to configure

clearGui

public void clearGui()
Provides a default implementation that resets the name field to the value of getStaticLabel(), reset comment and sets enabled to true. Your GUI may need more things cleared, in which case you should override, clear the extra fields, and still call super.clearGui().

Specified by:
clearGui in interface ClearGui

configureTestElement

protected void configureTestElement(TestElement mc)
This provides a convenience for extenders when they implement the JMeterGUIComponent.modifyTestElement(TestElement) method. This method will set the name, gui class, and test class for the created Test Element. It should be called by every extending class when creating/modifying Test Elements, as that will best assure consistent behavior.

Parameters:
mc - the TestElement being created.

makeTitlePanel

protected Container makeTitlePanel()
Create a standard title section for JMeter components. This includes the title for the component and the Name Panel allowing the user to change the name for the component. This method is typically added to the top of the component at the beginning of the component's init method.

Returns:
a panel containing the component title and name panel

makeBorder

protected Border makeBorder()
Create a top-level Border which can be added to JMeter components. Components typically set this as their border in their init method. It simply provides a nice spacing between the GUI components used and the edges of the window in which they appear.

Returns:
a Border for JMeter components

makeScrollPane

protected JScrollPane makeScrollPane(Component comp)
Create a scroll panel that sets it's preferred size to it's minimum size. Explicitly for scroll panes that live inside other scroll panes, or within containers that stretch components to fill the area they exist in. Use this for any component you would put in a scroll pane (such as TextAreas, tables, JLists, etc). It is here for convenience and to avoid duplicate code. JMeter displays best if you follow this custom.

Parameters:
comp - the component which should be placed inside the scroll pane
Returns:
a JScrollPane containing the specified component

makeScrollPane

protected JScrollPane makeScrollPane(Component comp,
                                     int verticalPolicy,
                                     int horizontalPolicy)
Create a scroll panel that sets it's preferred size to it's minimum size. Explicitly for scroll panes that live inside other scroll panes, or within containers that stretch components to fill the area they exist in. Use this for any component you would put in a scroll pane (such as TextAreas, tables, JLists, etc). It is here for convenience and to avoid duplicate code. JMeter displays best if you follow this custom.

Parameters:
comp - the component which should be placed inside the scroll pane
verticalPolicy - the vertical scroll policy
horizontalPolicy - the horizontal scroll policy
Returns:
a JScrollPane containing the specified component
See Also:
ScrollPaneConstants

getStaticLabel

public String getStaticLabel()
Description copied from interface: JMeterGUIComponent
Get the component's label. This label is used in drop down lists that give the user the option of choosing one type of component in a list of many. It should therefore be a descriptive name for the end user to see. It must be unique to the class. It is also used by Help to find the appropriate location in the documentation. Normally getLabelResource() should be overridden instead of this method; the definition of this method in AbstractJMeterGuiComponent is intended for general use.

Specified by:
getStaticLabel in interface JMeterGUIComponent
Returns:
GUI label for the component.
See Also:
JMeterGUIComponent.getLabelResource()

getDocAnchor

public String getDocAnchor()
Compute Anchor value to find reference in documentation for a particular component

Specified by:
getDocAnchor in interface JMeterGUIComponent
Returns:
String anchor

getPrintableComponent

public JComponent getPrintableComponent()
Subclasses need to over-ride this method, if they wish to return something other than the Visualizer itself.

Specified by:
getPrintableComponent in interface Printable
Returns:
this object

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