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## org.apache.xalan.client
Class XSLTProcessorApplet

    java.lang.Object
      |
      +--java.awt.Component
            |
            +--java.awt.Container
                  |
                  +--java.awt.Panel
                        |
                        +--java.applet.Applet
                              |
                              +--org.apache.xalan.client.XSLTProcessorApplet

public class XSLTProcessorApplet
extends java.applet.Applet

Provides applet host for the XSLT processor. To perform transformations on an HTML client:

1. Use an <applet> tag to embed this applet in the HTML client.
2. Use the DocumentURL and StyleURL PARAM tags or the `setDocumentURL(java.lang.String)` and `setStyleURL(java.lang.String)` methods to specify the XML source document and XSL stylesheet.
3. Call the `getHtmlText()` method (or one of the transformToHtml() methods) to perform the transformation and return the result as a String.

See Also:
  Serialized Form

Fields inherited from class java.awt.Component
`BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

Constructor Summary
`XSLTProcessorApplet()` The XSLTProcessorApplet constructor takes no arguments.

Method Summary
`void` | `destroy()` Cleanup; called when applet is terminated and unloaded.
`java.lang.String` | `escapeString(java.lang.String s)` Given a String containing markup, escape the markup so it can be displayed in the browser.
`void` | `freeCache()` The processor keeps a cache of the source and style trees, so call this method if they have changed or you want to do garbage collection.
`java.lang.String` | `getAppletInfo()` Get basic information about the applet
`java.lang.String` | `getHtmlText()` Assuming the stylesheet URL and the input XML URL have been set, perform the transformation and return the result as a String.
`java.lang.String[][]` | `getParameterInfo()` Get descriptions of the applet parameters.
`java.lang.String` | `getResultTreeAsText()` Get the HTML result Tree as a text string suitable for display in a browser.
`java.lang.String` | `getSourceTreeAsText()` Get the XML source Tree as a text string suitable for display in a browser.
`java.lang.String` | `getStyleTreeAsText()` Get the XSL style Tree as a text string suitable for display in a browser.
`java.lang.String` | `getTreeAsText(java.lang.String treeURL)` Get an XML document (or stylesheet)
`void` | `init()` Standard applet initialization.
`void` | `paint(java.awt.Graphics g)` Do not call; this applet contains no UI or visual components.
`void` | `setDocumentURL(java.lang.String urlString)` Set the URL to the XML document that will be transformed with the XSL stylesheet.
`void` | `setStyleSheetAttribute(java.lang.String nameOfIDAttrOfElemToModify, java.lang.String elemId, java.lang.String attrName, java.lang.String value)` Set an attribute in the stylesheet, which gives the ability to have some dynamic selection control.
`void` | `setStylesheetParam(java.lang.String key, java.lang.String expr)` Submit a stylesheet parameter.
`void` | `setStyleURL(java.lang.String urlString)` Set the URL to the XSL stylesheet that will be used to transform the input XML.
`void` | `start()` Automatically called when the HTML client containing the applet loads.
`void` | `stop()` Automatically called when the HTML page containing the applet is no longer on the screen.
`java.lang.String` | `transformToHtml(java.lang.String doc)` Process a document and a stylesheet and return the transformation result.
`java.lang.String` | `transformToHtml(java.lang.String doc, java.lang.String style)` Process a document and a stylesheet and return the transformation result.

Methods inherited from class java.applet.Applet
`getAccessibleContext, getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus`

Methods inherited from class java.awt.Panel
`addNotify`

Methods inherited from class java.awt.Container
`add, add, add, add, add, addContainerListener, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, remove, remove, removeAll, removeContainerListener, removeNotify, setFont, setLayout, update, validate`

Methods inherited from class java.awt.Component
`action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, contains, contains, createImage, createImage, disable, dispatchEvent, enable, enable, enableInputMethods, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getInputContext, getInputMethodRequests, getLocation, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### XSLTProcessorApplet

    public XSLTProcessorApplet()

  The XSLTProcessorApplet constructor takes no arguments.

Method Detail

### getAppletInfo

    public java.lang.String getAppletInfo()

  Get basic information about the applet
  Returns:
    A String with the applet name and author.
  Overrides:
    getAppletInfo in class java.applet.Applet

### getParameterInfo

    public java.lang.String[][] getParameterInfo()

  Get descriptions of the applet parameters.
  Returns:
    A two-dimensional array of Strings with Name, Type, and Description for each parameter.
  Overrides:
    getParameterInfo in class java.applet.Applet

### init

    public void init()

  Standard applet initialization.
  Overrides:
    init in class java.applet.Applet

### start

    public void start()

  Automatically called when the HTML client containing the applet loads. This method starts execution of the applet thread.
  Overrides:
    start in class java.applet.Applet

### paint

    public void paint(java.awt.Graphics g)

  Do not call; this applet contains no UI or visual components.
  Overrides:
    paint in class java.awt.Container

### stop

    public void stop()

  Automatically called when the HTML page containing the applet is no longer on the screen. Stops execution of the applet thread.
  Overrides:
    stop in class java.applet.Applet

### destroy

    public void destroy()

  Cleanup; called when applet is terminated and unloaded.
  Overrides:
    destroy in class java.applet.Applet

### setStyleURL

    public void setStyleURL(java.lang.String urlString)

  Set the URL to the XSL stylesheet that will be used to transform the input XML. No processing is done yet.
  Parameters:
    `urlString` - valid URL string for XSL stylesheet.

### setDocumentURL

    public void setDocumentURL(java.lang.String urlString)

  Set the URL to the XML document that will be transformed with the XSL stylesheet. No processing is done yet.
  Parameters:
    `urlString` - valid URL string for XML document.

### freeCache

    public void freeCache()

  The processor keeps a cache of the source and style trees, so call this method if they have changed or you want to do garbage collection.

### setStyleSheetAttribute

    public void setStyleSheetAttribute(java.lang.String nameOfIDAttrOfElemToModify,
                                       java.lang.String elemId,
                                       java.lang.String attrName,
                                       java.lang.String value)

  Set an attribute in the stylesheet, which gives the ability to have some dynamic selection control.
  Parameters:
    `nameOfIDAttrOfElemToModify` - The name of an attribute to search for a unique id.
    `elemId` - The unique ID to look for.
    `attrName` - Once the element is found, the name of the attribute to set.
    `value` - The value to set the attribute to.

### setStylesheetParam

    public void setStylesheetParam(java.lang.String key,
                                   java.lang.String expr)

  Submit a stylesheet parameter.
  Parameters:
    `key` - stylesheet parameter key
    `expr` - the parameter expression to be submitted.
  See Also:
    `Transformer.setParameter(String,Object)`

### escapeString

    public java.lang.String escapeString(java.lang.String s)

  Given a String containing markup, escape the markup so it can be displayed in the browser.
  Parameters:
    `s` - String to escape The escaped string.

### getHtmlText

    public java.lang.String getHtmlText()

  Assuming the stylesheet URL and the input XML URL have been set, perform the transformation and return the result as a String.
  Returns:
    A string that contains the contents pointed to by the URL.

### getTreeAsText

    public java.lang.String getTreeAsText(java.lang.String treeURL)
                                   throws java.io.IOException

  Get an XML document (or stylesheet)
  Parameters:
    `treeURL` - valid URL string for the document.
  Returns:
    document
  Throws:
    java.io.IOException -

### getSourceTreeAsText

    public java.lang.String getSourceTreeAsText()
                                         throws java.lang.Exception

  Get the XML source Tree as a text string suitable for display in a browser. Note that this is for display of the XML itself, not for rendering of HTML by the browser.
  Returns:
    XML source document as a string.
  Throws:
    java.lang.Exception - thrown if tree can not be converted.

### getStyleTreeAsText

    public java.lang.String getStyleTreeAsText()
                                        throws java.lang.Exception

  Get the XSL style Tree as a text string suitable for display in a browser. Note that this is for display of the XML itself, not for rendering of HTML by the browser.
  Returns:
    The XSL stylesheet as a string.
  Throws:
    java.lang.Exception - thrown if tree can not be converted.

### getResultTreeAsText

    public java.lang.String getResultTreeAsText()
                                         throws java.lang.Exception

  Get the HTML result Tree as a text string suitable for display in a browser. Note that this is for display of the XML itself, not for rendering of HTML by the browser.
  Returns:
    Transformation result as unmarked text.
  Throws:
    java.lang.Exception - thrown if tree can not be converted.

### transformToHtml

    public java.lang.String transformToHtml(java.lang.String doc,
                                            java.lang.String style)

  Process a document and a stylesheet and return the transformation result. If one of these is null, the existing value (of a previous transformation) is not affected.
  Parameters:
    `doc` - URL string to XML document
    `style` - URL string to XSL stylesheet
  Returns:
    HTML transformation result

### transformToHtml

    public java.lang.String transformToHtml(java.lang.String doc)

  Process a document and a stylesheet and return the transformation result. Use the xsl:stylesheet PI to find the document, if one exists.
  Parameters:
    `doc` - URL string to XML document containing an xsl:stylesheet PI.
  Returns:
    HTML transformation result

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