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## org.apache.fop.area
Class BookmarkData

    java.lang.Object
      org.apache.fop.area.AbstractOffDocumentItem
          org.apache.fop.area.BookmarkData

All Implemented Interfaces:
  OffDocumentItem, Resolvable

    public class BookmarkData

extends AbstractOffDocumentItem
implements Resolvable

An instance of this class is either a PDF bookmark-tree and its child bookmark-items, or a bookmark-item and the child child bookmark-items under it.

Field Summary

Fields inherited from class org.apache.fop.area.AbstractOffDocumentItem
`AFTER_PAGE, END_OF_DOC, IMMEDIATELY, START_OF_DOC, whenToProcess`

Constructor Summary
`BookmarkData()` Create a new bookmark data root object.
`BookmarkData(Bookmark bookmark)` Create a new pdf bookmark data object.
`BookmarkData(BookmarkTree bookmarkTree)` Create a new bookmark data object.
`BookmarkData(java.lang.String title, boolean showChildren, PageViewport pv, java.lang.String idRef)` Create a new bookmark data object.

Method Summary
`void` | `addSubData(BookmarkData sub)` Add a child bookmark data object.
`java.lang.String` | `getBookmarkTitle()` Get the title for this bookmark object.
`int` | `getCount()` Get the size of child data objects.
`java.lang.String` | `getIDRef()` Get the idref for this bookmark-item
`java.lang.String[]` | `getIDRefs()` Get the array of idrefs of this resolvable object.
`java.lang.String` | `getName()` Return a human-readable name for this ODI (for error messages, etc.)
`PageViewport` | `getPageViewport()` Get the PageViewport object that this bookmark refers to
`BookmarkData` | `getSubData(int count)` Get the child data object.
`boolean` | `isResolved()` Check if this resolvable object has been resolved.
`void` | `resolveIDRef(java.lang.String id, java.util.List<PageViewport> pages)` Resolve this resolvable object.
`boolean` | `showChildItems()` Indicator of whether to initially display child bookmarks.

Methods inherited from class org.apache.fop.area.AbstractOffDocumentItem
`getWhenToProcess`

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

Constructor Detail

### BookmarkData

    public BookmarkData(BookmarkTree bookmarkTree)

  Create a new bookmark data object. This should only be called by the bookmark-tree item because it has no idref item that needs to be resolved.

  Parameters:
    `bookmarkTree` - fo:bookmark-tree for this document

### BookmarkData

    public BookmarkData(Bookmark bookmark)

  Create a new pdf bookmark data object. This is used by the bookmark-items to create a data object with a idref. During processing, this idref will be subsequently resolved to a particular PageViewport.

  Parameters:
    `bookmark` - the fo:bookmark object

### BookmarkData

    public BookmarkData()

  Create a new bookmark data root object. This constructor is called by the AreaTreeParser when the element is read from the XML file

### BookmarkData

    public BookmarkData(java.lang.String title,
                        boolean showChildren,
                        PageViewport pv,
                        java.lang.String idRef)

  Create a new bookmark data object. This constructor is called by the AreaTreeParser when a element is read from the XML file.

  Parameters:
    `title` - the bookmark's title
    `showChildren` - whether to initially display the bookmark's children
    `pv` - the target PageViewport
    `idRef` - the target ID

Method Detail

### getIDRef

    public java.lang.String getIDRef()

  Get the idref for this bookmark-item

  Returns:
    the idref for the bookmark-item

### addSubData

    public void addSubData(BookmarkData sub)

  Add a child bookmark data object. This adds a child bookmark in the bookmark hierarchy.

  Parameters:
    `sub` - the child bookmark data

### getBookmarkTitle

    public java.lang.String getBookmarkTitle()

  Get the title for this bookmark object.

  Returns:
    the bookmark title

### showChildItems

    public boolean showChildItems()

  Indicator of whether to initially display child bookmarks.

  Returns:
    true to initially display child bookmarks, false otherwise

### getCount

    public int getCount()

  Get the size of child data objects.

  Returns:
    the number of child bookmark data

### getSubData

    public BookmarkData getSubData(int count)

  Get the child data object.

  Parameters:
    `count` - the index to get
  Returns:
    the child bookmark data

### getPageViewport

    public PageViewport getPageViewport()

  Get the PageViewport object that this bookmark refers to

  Returns:
    the PageViewport that this bookmark points to

### isResolved

    public boolean isResolved()

  Check if this resolvable object has been resolved. A BookmarkData object is considered resolved once the idrefs for it and for all of its child bookmark-items have been resolved.

  Specified by:
    `isResolved` in interface `Resolvable`
  Returns:
    true if this object has been resolved

### getIDRefs

    public java.lang.String[] getIDRefs()

  Get the array of idrefs of this resolvable object. If this object contains child resolvables that are resolved through this then it should return the idref's of the child also.

  Specified by:
    `getIDRefs` in interface `Resolvable`
  Returns:
    the id references for resolving this object

### resolveIDRef

    public void resolveIDRef(java.lang.String id,
                             java.util.List<PageViewport> pages)

  Resolve this resolvable object. This resolves the idref of this object and if possible also resolves id references of child elements that have the same id reference. This method allows the Resolvable object to resolve one of its unresolved idrefs with the actual set of PageViewports containing the target ID. The Resolvable object initially identifies to the AreaTreeHandler which idrefs it needs resolved. After the idrefs are resolved, the ATH calls this method to allow the Resolvable object to update itself with the PageViewport information.

  Specified by:
    `resolveIDRef` in interface `Resolvable`
  Parameters:
    `id` - an ID matching one of the Resolvable object's unresolved idref's.
    `pages` - the list of PageViewports with the given ID

### getName

    public java.lang.String getName()

  Return a human-readable name for this ODI (for error messages, etc.)

  Specified by:
    `getName` in interface `OffDocumentItem`
  Specified by:
    `getName` in class `AbstractOffDocumentItem`
  Returns:
    String name of ODI

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