Class StaticJMeterGUIComponent
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- All Implemented Interfaces:
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org.apache.jmeter.gui.ClearGui
,org.apache.jmeter.gui.JMeterGUIComponent
@API(since = "5.3", status = API.Status.INTERNAL) public class StaticJMeterGUIComponent implements JMeterGUIComponent
Internal class to speedup the startup time.
JMeter needs component names to create menus, however, default GUIComponent implementations create UI elements in their constructors. This class implements just the minimal subset of the methods to make menu factory happy.
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Field Summary
Fields Modifier and Type Field Description public final String
labelResource
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Constructor Summary
Constructors Constructor Description StaticJMeterGUIComponent(Class<out Object> c, TestElementMetadata metadata)
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Method Summary
Modifier and Type Method Description String
getLabelResource()
Get the component's resource name, which getStaticLabel uses to derive the component's label in the local language. String
getStaticLabel()
Get the component's label. Collection<String>
getMenuCategories()
This is the list of add menu categories this gui component will be available under. void
setName(String name)
Sets the name of the JMeter GUI Component. String
getName()
Gets the name of the JMeter GUI component. String
getDocAnchor()
Get the component's document anchor name. TestElement
createTestElement()
JMeter test components are separated into a model and a GUI representation. void
modifyTestElement(TestElement element)
GUI components are responsible for populating TestElements they create with the data currently held in the GUI components. boolean
isEnabled()
Test GUI elements can be disabled, in which case they do not become part of the test when run. void
setEnabled(boolean enabled)
Set whether this component is enabled. JPopupMenu
createPopupMenu()
When a user right-clicks on the component in the test tree, or selects the edit menu when the component is selected, the component will be asked to return a JPopupMenu that provides all the options available to the user from this component. void
configure(TestElement element)
The GUI must be able to extract the data from the TestElement and update all GUI fields to represent those data. void
clearGui()
Clear the gui and return it to initial default values. -
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Constructor Detail
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StaticJMeterGUIComponent
StaticJMeterGUIComponent(Class<out Object> c, TestElementMetadata metadata)
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Method Detail
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getLabelResource
String getLabelResource()
Get the component's resource name, which getStaticLabel uses to derive the component's label in the local language. The resource name is fixed, and does not vary with the selected language.
Normally this method should be overridden in preference to overriding getStaticLabel(). However where the resource name is not available or required, getStaticLabel() may be overridden instead.
- Returns:
the resource name
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getStaticLabel
String getStaticLabel()
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.
- Returns:
GUI label for the component.
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getMenuCategories
Collection<String> getMenuCategories()
This is the list of add menu categories this gui component will be available under. For instance, if this represents a Controller, then the MenuFactory.CONTROLLERS category should be in the returned collection. When a user right-clicks on a tree element and looks through the "add" menu, which category your GUI component shows up in is determined by which categories are returned by this method. Most GUI's belong to only one category, but it is possible for a component to exist in multiple categories.
- Returns:
a Collection of Strings, where each element is one of the constants defined in MenuFactory
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setName
void setName(String name)
Sets the name of the JMeter GUI Component. The name of the component is used in the Test Tree as the name of the tree node.
- Parameters:
name
- the name of the component
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getName
String getName()
Gets the name of the JMeter GUI component. The name of the component is used in the Test Tree as the name of the tree node.
- Returns:
the name of the component
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getDocAnchor
String getDocAnchor()
Get the component's document anchor name. Used by Help to find the appropriate location in the documentation
- Returns:
Document anchor (#ref) for the component.
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createTestElement
TestElement createTestElement()
JMeter test components are separated into a model and a GUI representation. The model holds the data and the GUI displays it. The GUI class is responsible for knowing how to create and initialize with data the model class that it knows how to display, and this method is called when new test elements are created.
Since 5.6.3, the default implementation is as follows, and subclasses should override makeTestElement
public TestElement createTestElement() { TestElement element = makeTestElement(); assignDefaultValues(element); return el; }
Before 5.6.3 the canonical implementation was as follows, however, it is recommended to avoid overriding createTestElement and override makeTestElement instead.
public TestElement createTestElement() { TestElementXYZ el = new TestElementXYZ(); modifyTestElement(el); return el; }
- Returns:
the Test Element object that the GUI component represents.
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modifyTestElement
void modifyTestElement(TestElement element)
GUI components are responsible for populating TestElements they create with the data currently held in the GUI components. This method should overwrite whatever data is currently in the TestElement as it is called after a user has filled out the form elements in the gui with new information.
If you override AbstractJMeterGuiComponent, you might want using bindingGroup instead of overriding
modifyTestElement
.The canonical implementation looks like this:
@Override public void modifyTestElement(TestElement element) { super.modifyTestElement(element); // clear the element and assign basic fields like name, gui class, test class // Using the element setters (preferred): // If the field is empty, you probably want to remove the property instead of storing an empty string // See Streamline binding of UI elements to TestElement properties // for more details TestElementXYZ xyz = (TestElementXYZ) element; xyz.setState(StringUtils.defaultIfEmpty(guiState.getText(), null)); xyz.setCode(StringUtils.defaultIfEmpty(guiCode.getText(), null)); ... other GUI fields ... // or directly (do not use unless there is no setter for the field): element.setProperty(TestElementXYZ.STATE, StringUtils.defaultIfEmpty(guiState.getText(), null)) element.setProperty(TestElementXYZ.CODE, StringUtils.defaultIfEmpty(guiCode.getText(), null)) ... other GUI fields ... }
- Parameters:
element
- the TestElement to modify
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isEnabled
boolean isEnabled()
Test GUI elements can be disabled, in which case they do not become part of the test when run.
- Returns:
true if the element should be part of the test run, false otherwise
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setEnabled
void setEnabled(boolean enabled)
Set whether this component is enabled.
- Parameters:
enabled
- true for enabled, false for disabled.
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createPopupMenu
JPopupMenu createPopupMenu()
When a user right-clicks on the component in the test tree, or selects the edit menu when the component is selected, the component will be asked to return a JPopupMenu that provides all the options available to the user from this component.
- Returns:
a JPopupMenu appropriate for the component.
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configure
void configure(TestElement element)
The GUI must be able to extract the data from the TestElement and update all GUI fields to represent those data. This method is called to allow JMeter to show the user the GUI that represents the test element's data.
The canonical implementation looks like this:
public void configure(TestElement element) { super.configure(element); // Using the element getter (preferred): TestElementXYZ xyz = (TestElementXYZ) element; guiState.setText(xyz.getState()); guiCode.setText(xyz.getCode()); ... other GUI fields ... // or using the element property names directly (do not use unless there is no getter for the field) guiState.setText(element.getPropertyAsString(TestElementXYZ.STATE)); guiCode.setText(element.getPropertyAsString(TestElementXYZ.CODE)); ... other GUI fields ... }
- Parameters:
element
- the TestElement to configure
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clearGui
void clearGui()
Clear the gui and return it to initial default values. This is necessary because most gui classes are instantiated just once and re-used for multiple test element objects and thus they need to be cleared between uses.
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