Package org.apache.openjpa.lib.util.collections

Class AbstractDualBidiMap.BidiMapIterator<K,V>

java.lang.Object
org.apache.openjpa.lib.util.collections.AbstractDualBidiMap.BidiMapIterator<K,V>
All Implemented Interfaces:
Iterator<K>, MapIterator<K,V>, ResettableIterator<K>
Enclosing class:
AbstractDualBidiMap<K,V>
protected static class AbstractDualBidiMap.BidiMapIterator<K,V> extends Object implements MapIterator<K,V>, ResettableIterator<K>
Inner class MapIterator.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected boolean
    canRemove
    Whether remove is allowed at present
    protected Iterator<Map.Entry<K,V>>
    iterator
    The iterator being wrapped
    protected Map.Entry<K,V>
    last
    The last returned entry
    protected final AbstractDualBidiMap<K,V>
    parent
    The parent map

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    BidiMapIterator(AbstractDualBidiMap<K,V> parent)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    K
    getKey()
    Gets the current key, which is the key returned by the last call to next().
    V
    getValue()
    Gets the current value, which is the value associated with the last key returned by next().
    boolean
    hasNext()
    Checks to see if there are more entries still to be iterated.
    K
    next()
    Gets the next key from the Map.
    void
    remove()
    Removes the last returned key from the underlying Map (optional operation).
    void
    reset()
    Resets the iterator back to the position at which the iterator was created.
    V
    setValue(V value)
    Sets the value associated with the current key (optional operation).
    String
    toString()
     

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface java.util.Iterator

    forEachRemaining

  • Field Details

    • parent

      protected final AbstractDualBidiMap<K,V> parent
      The parent map

    • iterator

      protected Iterator<Map.Entry<K,V>> iterator
      The iterator being wrapped

    • last

      protected Map.Entry<K,V> last
      The last returned entry

    • canRemove

      protected boolean canRemove
      Whether remove is allowed at present

  • Constructor Details

    • BidiMapIterator

      protected BidiMapIterator(AbstractDualBidiMap<K,V> parent)
      Constructor.
      Parameters:
      parent - the parent map

  • Method Details

    • hasNext

      public boolean hasNext()
      Description copied from interface: MapIterator
      Checks to see if there are more entries still to be iterated.
      Specified by:
      hasNext in interface Iterator<K>
      Specified by:
      hasNext in interface MapIterator<K,V>
      Returns:
      true if the iterator has more elements

    • next

      public K next()
      Description copied from interface: MapIterator
      Gets the next key from the Map.
      Specified by:
      next in interface Iterator<K>
      Specified by:
      next in interface MapIterator<K,V>
      Returns:
      the next key in the iteration

    • remove

      public void remove()
      Description copied from interface: MapIterator
      Removes the last returned key from the underlying Map (optional operation).

      This method can be called once per call to next().

      Specified by:
      remove in interface Iterator<K>
      Specified by:
      remove in interface MapIterator<K,V>

    • getKey

      public K getKey()
      Description copied from interface: MapIterator
      Gets the current key, which is the key returned by the last call to next().
      Specified by:
      getKey in interface MapIterator<K,V>
      Returns:
      the current key

    • getValue

      public V getValue()
      Description copied from interface: MapIterator
      Gets the current value, which is the value associated with the last key returned by next().
      Specified by:
      getValue in interface MapIterator<K,V>
      Returns:
      the current value

    • setValue

      public V setValue(V value)
      Description copied from interface: MapIterator
      Sets the value associated with the current key (optional operation).
      Specified by:
      setValue in interface MapIterator<K,V>
      Parameters:
      value - the new value
      Returns:
      the previous value

    • reset

      public void reset()
      Description copied from interface: ResettableIterator
      Resets the iterator back to the position at which the iterator was created.
      Specified by:
      reset in interface ResettableIterator<K>

    • toString

      public String toString()
      Overrides:
      toString in class Object