Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ObjectView - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Edition

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javax.swing.text.html
Class ObjectView

java.lang.Object
  |
  +--javax.swing.text.View
        |
        +--javax.swing.text.ComponentView
              |
              +--javax.swing.text.html.ObjectView

public class ObjectView
extends ComponentView

Component decorator that implements the view interface for <object> elements.

This view will try to load the class specified by the classid attribute. If possible, the Classloader used to load the associated Document is used. This would typically be the same as the ClassLoader used to load the EditorKit. If the documents ClassLoader is null, Class.forName is used.

If the class can successfully be loaded, an attempt will be made to create an instance of it by calling Class.newInstance. An attempt will be made to narrow the instance to type java.awt.Component to display the object.

This view can also manage a set of parameters with limitations. The parameters to the <object> element are expected to be present on the associated elements attribute set as simple strings. Each bean property will be queried as a key on the AttributeSet, with the expectation that a non-null value (of type String) will be present if there was a parameter specification for the property. Reflection is used to set the parameter. Currently, this is limited to a very simple single parameter of type String.

A simple example html invocation is:

Fields inherited from class javax.swing.text.View

BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS

Constructor Summary

ObjectView(Element elem)
Creates a new ObjectView object.

Method Summary

protected Component createComponent()
Create the component.

Methods inherited from class javax.swing.text.ComponentView

getAlignment, getComponent, getMaximumSpan, getMinimumSpan, getPreferredSpan, modelToView, paint, setParent, setSize, viewToModel

Methods inherited from class javax.swing.text.View

breakView, changedUpdate, createFragment, getAttributes, getBreakWeight, getChildAllocation, getContainer, getDocument, getElement, getEndOffset, getNextVisualPositionFrom, getParent, getResizeWeight, getStartOffset, getView, getViewCount, getViewFactory, insertUpdate, isVisible, modelToView, modelToView, preferenceChanged, removeUpdate, viewToModel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ObjectView

public ObjectView(Element elem)

Creates a new ObjectView object.

Parameters:: elem - the element to decorate

Method Detail

createComponent

protected Component createComponent()

Create the component. The classid is used as a specification of the classname, which we try to load.

Overrides:: createComponent in class ComponentView