org.apache.fop.render.intermediate.util

## Class IFDocumentHandlerProxy

- java.lang.Object
- - org.apache.fop.render.intermediate.util.IFDocumentHandlerProxy

- All Implemented Interfaces:
    IFDocumentHandler
  Direct Known Subclasses:
    EventProducingFilter

      public class IFDocumentHandlerProxy
      extends Object
      implements IFDocumentHandler

  This class is a simple proxy that delegates all method calls to another `IFDocumentHandler` instance.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected IFDocumentHandler` | `delegate` the delegate IFDocumentHandler

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `IFDocumentHandlerProxy(IFDocumentHandler delegate)` Creates a new proxy instance.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `endDocument()` Indicates the end of a document.
    `void` | `endDocumentHeader()` Indicates the end of the document header.
    `void` | `endDocumentTrailer()` Indicates the end of the document trailer.
    `void` | `endPage()` Indicates the end of a page
    `void` | `endPageContent()` Indicates the end of the page content.
    `void` | `endPageHeader()` Indicates the end of the page header.
    `void` | `endPageSequence()` Indicates the end of a page sequence.
    `void` | `endPageTrailer()` Indicates the end of the page trailer.
    `IFDocumentHandlerConfigurator` | `getConfigurator()` Returns the configurator for this document handler, if any.
    `IFContext` | `getContext()` Returns the associated intermediate format context object.
    `IFDocumentNavigationHandler` | `getDocumentNavigationHandler()` Returns a document navigation handler if this feature is supported.
    `FontInfo` | `getFontInfo()` Returns the font set to work with.
    `String` | `getMimeType()` Returns the MIME type of the output format that is generated by this implementation.
    `StructureTreeEventHandler` | `getStructureTreeEventHandler()`
    `void` | `handleExtensionObject(Object extension)` Handles an extension object.
    `void` | `setDefaultFontInfo(FontInfo fontInfo)` Sets the default font set (with no custom configuration).
    `void` | `setDocumentLocale(Locale locale)`
    `void` | `setFontInfo(FontInfo fontInfo)` Sets the font set to work with.
    `void` | `setResult(Result result)` Sets the JAXP Result object to receive the generated content.
    `void` | `startDocument()` Indicates the start of a document.
    `void` | `startDocumentHeader()` Indicates the start of the document header.
    `void` | `startDocumentTrailer()` Indicates the start of the document trailer.
    `void` | `startPage(int index, String name, String pageMasterName, Dimension size)` Indicates the start of a new page.
    `IFPainter` | `startPageContent()` Indicates the start of the page content.
    `void` | `startPageHeader()` Indicates the start of the page header.
    `void` | `startPageSequence(String id)` Indicates the start of a new page sequence.
    `void` | `startPageTrailer()` Indicates the start of the page trailer.
    `boolean` | `supportsPagesOutOfOrder()` Indicates whether the painter supports to handle the pages in mixed order rather than ascending order.

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### delegate

          protected IFDocumentHandler delegate

      the delegate IFDocumentHandler

  - ### Constructor Detail

    - #### IFDocumentHandlerProxy

          public IFDocumentHandlerProxy(IFDocumentHandler delegate)

      Creates a new proxy instance.
      Parameters:
        `delegate` - the delegate instance

  - ### Method Detail

    - #### supportsPagesOutOfOrder

          public boolean supportsPagesOutOfOrder()

      Indicates whether the painter supports to handle the pages in mixed order rather than ascending order.
      Specified by:
        `supportsPagesOutOfOrder` in interface `IFDocumentHandler`
      Returns:
        true if out-of-order handling is supported

    - #### getMimeType

          public String getMimeType()

      Returns the MIME type of the output format that is generated by this implementation.
      Specified by:
        `getMimeType` in interface `IFDocumentHandler`
      Returns:
        the MIME type

    - #### getContext

          public IFContext getContext()

      Returns the associated intermediate format context object.
      Specified by:
        `getContext` in interface `IFDocumentHandler`
      Returns:
        the context object

    - #### getFontInfo

          public FontInfo getFontInfo()

      Returns the font set to work with.
      Specified by:
        `getFontInfo` in interface `IFDocumentHandler`
      Returns:
        the font info object

    - #### setFontInfo

          public void setFontInfo(FontInfo fontInfo)

      Sets the font set to work with.
      Specified by:
        `setFontInfo` in interface `IFDocumentHandler`
      Parameters:
        `fontInfo` - the font info object

    - #### setDefaultFontInfo

          public void setDefaultFontInfo(FontInfo fontInfo)

      Sets the default font set (with no custom configuration).
      Specified by:
        `setDefaultFontInfo` in interface `IFDocumentHandler`
      Parameters:
        `fontInfo` - the font info object to populate

    - #### getConfigurator

          public IFDocumentHandlerConfigurator getConfigurator()

      Returns the configurator for this document handler, if any.
      Specified by:
        `getConfigurator` in interface `IFDocumentHandler`
      Returns:
        the configurator or null if there's no configurator

    - #### getDocumentNavigationHandler

          public IFDocumentNavigationHandler getDocumentNavigationHandler()

      Returns a document navigation handler if this feature is supported.
      Specified by:
        `getDocumentNavigationHandler` in interface `IFDocumentHandler`
      Returns:
        the document navigation handler or null if not supported

    - #### getStructureTreeEventHandler

          public StructureTreeEventHandler getStructureTreeEventHandler()

      Specified by:
        `getStructureTreeEventHandler` in interface `IFDocumentHandler`
      Returns:
        the structure tree builder

    - #### setResult

          public void setResult(Result result)
                         throws IFException

      Sets the JAXP Result object to receive the generated content.
      Specified by:
        `setResult` in interface `IFDocumentHandler`
      Parameters:
        `result` - the JAXP Result object to receive the generated content
      Throws:
        `IFException` - if an error occurs setting up the output

    - #### startDocument

          public void startDocument()
                             throws IFException

      Indicates the start of a document. This method may only be called once before any other event method.
      Specified by:
        `startDocument` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### setDocumentLocale

          public void setDocumentLocale(Locale locale)

      Specified by:
        `setDocumentLocale` in interface `IFDocumentHandler`
      Parameters:
        `locale` - Locale of the document.

    - #### startDocumentHeader

          public void startDocumentHeader()
                                   throws IFException

      Indicates the start of the document header. This method is called right after the `IFDocumentHandler.startDocument()` method. Extensions sent to this painter between `IFDocumentHandler.startDocumentHeader()` and `IFDocumentHandler.endDocumentHeader()` apply to the document as a whole (like document metadata).
      Specified by:
        `startDocumentHeader` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endDocumentHeader

          public void endDocumentHeader()
                                 throws IFException

      Indicates the end of the document header. This method is called before the first page sequence.
      Specified by:
        `endDocumentHeader` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### startPageSequence

          public void startPageSequence(String id)
                                 throws IFException

      Indicates the start of a new page sequence.
      Specified by:
        `startPageSequence` in interface `IFDocumentHandler`
      Parameters:
        `id` - the page sequence's identifier (or null if none is available)
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### startPage

          public void startPage(int index,
                                String name,
                                String pageMasterName,
                                Dimension size)
                         throws IFException

      Indicates the start of a new page.
      Specified by:
        `startPage` in interface `IFDocumentHandler`
      Parameters:
        `index` - the index of the page (0-based)
        `name` - the page name (usually the formatted page number)
        `pageMasterName` - the name of the simple-page-master that generated this page
        `size` - the size of the page (equivalent to the MediaBox in PDF)
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### startPageHeader

          public void startPageHeader()
                               throws IFException

      Indicates the start of the page header.
      Specified by:
        `startPageHeader` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endPageHeader

          public void endPageHeader()
                             throws IFException

      Indicates the end of the page header.
      Specified by:
        `endPageHeader` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### startPageContent

          public IFPainter startPageContent()
                                     throws IFException

      Indicates the start of the page content. The method returns an `IFPainter` interface which is used to paint the page contents.
      Specified by:
        `startPageContent` in interface `IFDocumentHandler`
      Returns:
        the IFPainter for the page content
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endPageContent

          public void endPageContent()
                              throws IFException

      Indicates the end of the page content. Calls to the `IFPainter` returned by the respective `IFDocumentHandler.startPageContent()` method are illegal.
      Specified by:
        `endPageContent` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### startPageTrailer

          public void startPageTrailer()
                                throws IFException

      Indicates the start of the page trailer. The page trailer is used for writing down page elements which are only know after handling the page itself (like PDF targets).
      Specified by:
        `startPageTrailer` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endPageTrailer

          public void endPageTrailer()
                              throws IFException

      Indicates the end of the page trailer.
      Specified by:
        `endPageTrailer` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endPage

          public void endPage()
                       throws IFException

      Indicates the end of a page
      Specified by:
        `endPage` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endPageSequence

          public void endPageSequence()
                               throws IFException

      Indicates the end of a page sequence.
      Specified by:
        `endPageSequence` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### startDocumentTrailer

          public void startDocumentTrailer()
                                    throws IFException

      Indicates the start of the document trailer. This method is called after the last page sequence. Extensions sent to the painter between `IFDocumentHandler.startDocumentTrailer()` and `IFDocumentHandler.endDocumentTrailer()` apply to the document as a whole and is used for document-level content that is only known after all pages have been rendered (like named destinations or the bookmark tree).
      Specified by:
        `startDocumentTrailer` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endDocumentTrailer

          public void endDocumentTrailer()
                                  throws IFException

      Indicates the end of the document trailer. This method is called right before the `IFDocumentHandler.endDocument()` method.
      Specified by:
        `endDocumentTrailer` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### endDocument

          public void endDocument()
                           throws IFException

      Indicates the end of a document. This method may only be called once after the whole document has been handled. Implementations can release resources (close streams). It is an error to call any event method after this method.
      Specified by:
        `endDocument` in interface `IFDocumentHandler`
      Throws:
        `IFException` - if an error occurs while handling this event

    - #### handleExtensionObject

          public void handleExtensionObject(Object extension)
                                     throws IFException

      Handles an extension object. This can be a DOM document or any arbitrary object. If an implementation doesn't know how to handle a particular extension it is simply ignored.
      Specified by:
        `handleExtensionObject` in interface `IFDocumentHandler`
      Parameters:
        `extension` - the extension object
      Throws:
        `IFException` - if an error occurs while handling this event

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