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## org.apache.fop.layoutmgr
Class KnuthPossPosIter

    java.lang.Object
      org.apache.fop.layoutmgr.PositionIterator
          org.apache.fop.layoutmgr.KnuthPossPosIter

All Implemented Interfaces:
  java.util.Iterator<Position>

    public class KnuthPossPosIter

extends PositionIterator

A dedicated `PositionIterator` that is backed by an iterator over a list of `KnuthElement`s.

Constructor Summary
`KnuthPossPosIter(java.util.List elementList)` Auxiliary constructor
`KnuthPossPosIter(java.util.List elementList, int startPos, int endPos)` Main constructor

Method Summary
`protected boolean` | `checkNext()`
`ListElement` | `getKE()` Peek at next, returning as ListElement.
`protected LayoutManager` | `getLM(java.lang.Object nextObj)`
`protected Position` | `getPos(java.lang.Object nextObj)` Default implementation assumes that the passed `nextObj` is itself a `Position`, and just returns it.
`Position` | `next()`

Methods inherited from class org.apache.fop.layoutmgr.PositionIterator
`endIter, getNextChildLM, hasNext, peekNext, remove`

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

Constructor Detail

### KnuthPossPosIter

    public KnuthPossPosIter(java.util.List elementList,
                            int startPos,
                            int endPos)

  Main constructor

  Parameters:
    `elementList` - List of Knuth elements
    `startPos` - starting position, inclusive
    `endPos` - ending position, exclusive

### KnuthPossPosIter

    public KnuthPossPosIter(java.util.List elementList)

  Auxiliary constructor

  Parameters:
    `elementList` - List of Knuth elements

Method Detail

### checkNext

    protected boolean checkNext()

  Overrides:
    `checkNext` in class `PositionIterator`
  Returns:
    true if not at end of sub-sequence with same child layout manager

### next

    public Position next()

  Specified by:
    `next` in interface `java.util.Iterator<Position>`
  Overrides:
    `next` in class `PositionIterator`

### getKE

    public ListElement getKE()

  Peek at next, returning as ListElement.

  Returns:
    peek at next as ListElement

### getLM

    protected LayoutManager getLM(java.lang.Object nextObj)

  Overrides:
    `getLM` in class `PositionIterator`
  Parameters:
    `nextObj` - next object from which to obtain position
  Returns:
    layout manager

### getPos

    protected Position getPos(java.lang.Object nextObj)

  Default implementation assumes that the passed `nextObj` is itself a `Position`, and just returns it. Subclasses for which this is not the case, must provide a suitable override this method.

  Overrides:
    `getPos` in class `PositionIterator`
  Parameters:
    `nextObj` - next object from which to obtain position
  Returns:
    position of next object.

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