org.apache.fop.fo.pagination

## Interface SubSequenceSpecifier

- All Known Implementing Classes:
    RepeatablePageMasterAlternatives, RepeatablePageMasterReference, SinglePageMasterReference

      public interface SubSequenceSpecifier

  Classes that implement this interface can be added to a `PageSequenceMaster`, and are capable of looking up an appropriate `SimplePageMaster`.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `canProcess(java.lang.String flowName)`
    `SimplePageMaster` | `getNextPageMaster(boolean isOddPage, boolean isFirstPage, boolean isLastPage, boolean isBlankPage)` Returns the name of the next page master.
    `boolean` | `goToPrevious()` Used to set the "cursor position" to the previous item.
    `boolean` | `hasPagePositionLast()`
    `boolean` | `hasPagePositionOnly()`
    `boolean` | `isInfinite()` Test that this is a finite sequence
    `boolean` | `isReusable()` Test if this can be reused when it is the last sub-sequence specifer, and has been exhausted
    `void` | `reset()` Called before a new page sequence is rendered so subsequences can reset any state they keep during the formatting process.
    `void` | `resolveReferences(LayoutMasterSet layoutMasterSet)` called by the parent LayoutMasterSet to resolve object references from simple page master reference names

- - ### Method Detail

    - #### getNextPageMaster

          SimplePageMaster getNextPageMaster(boolean isOddPage,
                                             boolean isFirstPage,
                                             boolean isLastPage,
                                             boolean isBlankPage)
                                      throws PageProductionException

      Returns the name of the next page master.
      Parameters:
        `isOddPage` - True if the next page number is odd
        `isFirstPage` - True if the next page is the first
        `isLastPage` - True if the next page is the last
        `isBlankPage` - True if the next page is blank
      Returns:
        the page master name
      Throws:
        `PageProductionException` - if there's a problem determining the next page master

    - #### reset

          void reset()

      Called before a new page sequence is rendered so subsequences can reset any state they keep during the formatting process.

    - #### goToPrevious

          boolean goToPrevious()

      Used to set the "cursor position" to the previous item.
      Returns:
        true if there is a previous item, false if the current one was the first one.

    - #### hasPagePositionLast

          boolean hasPagePositionLast()

      Returns:
        true if the subsequence has a page master for page-position "last"

    - #### hasPagePositionOnly

          boolean hasPagePositionOnly()

      Returns:
        true if the subsequence has a page master for page-position "only"

    - #### resolveReferences

          void resolveReferences(LayoutMasterSet layoutMasterSet)
                          throws ValidationException

      called by the parent LayoutMasterSet to resolve object references from simple page master reference names
      Parameters:
        `layoutMasterSet` - the layout-master-set
      Throws:
        `ValidationException` - when a named reference cannot be resolved

    - #### canProcess

          boolean canProcess(java.lang.String flowName)

      Parameters:
        `flowName` - name of the main flow
      Returns:
        true iff page sequence is a finite sequence or can process the entire main flow

    - #### isInfinite

          boolean isInfinite()

      Test that this is a finite sequence
      Returns:
        true iff this is a finite sequence

    - #### isReusable

          boolean isReusable()

      Test if this can be reused when it is the last sub-sequence specifer, and has been exhausted
      Returns:
        true if and only if it can be reused

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