Overview | Package | Class | Tree | Index | Help

Oracle® Coherence Java API Reference
v3.5.3
E15583-01
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## com.tangosol.util
Class AbstractSparseArray.Crawler

    java.lang.Object
      com.tangosol.util.AbstractSparseArray.Crawler

All Implemented Interfaces:
  LongArray.Iterator, java.lang.Cloneable, java.util.Iterator

Direct Known Subclasses:
  PrimitiveSparseArray.Iterator

Enclosing class:
  AbstractSparseArray

    protected class AbstractSparseArray.Crawler

extends java.lang.Object
implements LongArray.Iterator, java.lang.Cloneable

A tree node iterator. The methods of this local class are not synchronized; the enclosing class is responsible for synchronization.

Field Summary
`protected static int` | `ABOVE`
`protected AbstractSparseArray.Node` | `current`
`protected boolean` | `fForward`
`protected int` | `fromdir`
`protected static int` | `LEFT`
`protected static int` | `RIGHT`
`protected static int` | `SITTING`

Constructor Summary
`protected` | `AbstractSparseArray.Crawler(AbstractSparseArray.Node head, int fromdir, boolean fForward)` Crawler constructor.

Method Summary
`java.lang.Object` | `clone()` Make a shallow copy of the node crawler.
`protected AbstractSparseArray.Node` | `currentNode()` Returns the current Node in the iteration.
`long` | `getIndex()` Returns the index of the current value, which is the value returned by the most recent call to the `next` method.
`java.lang.Object` | `getValue()` Returns the current value, which is the same value returned by the most recent call to the `next` method, or the most recent value passed to `setValue` if `setValue` were called after the `next` method.
`boolean` | `hasNext()` Returns `true` if the iteration has more elements.
`java.lang.Object` | `next()` Returns the next element in the iteration.
`protected AbstractSparseArray.Node` | `nextNode()` Returns the next Node in the iteration.
`void` | `remove()` Removes from the underlying collection the last element returned by the iterator (optional operation).
`java.lang.Object` | `setValue(java.lang.Object oValue)` Stores a new value at the current value index, returning the value that was replaced.
`java.lang.String` | `toString()` Provide a string representation of this node's value.

Field Detail

### ABOVE

    protected static final int ABOVE

See Also:
  Constant Field Values

### LEFT

    protected static final int LEFT

See Also:
  Constant Field Values

### SITTING

    protected static final int SITTING

See Also:
  Constant Field Values

### RIGHT

    protected static final int RIGHT

See Also:
  Constant Field Values

### current

    protected AbstractSparseArray.Node current

### fromdir

    protected int fromdir

### fForward

    protected boolean fForward

Constructor Detail

### AbstractSparseArray.Crawler

    protected AbstractSparseArray.Crawler(AbstractSparseArray.Node head,
                                          int fromdir,
                                          boolean fForward)

  Crawler constructor.

Method Detail

### hasNext

    public boolean hasNext()

  Returns `true` if the iteration has more elements. (In other words, returns `true` if `next` would return an element rather than throwing an exception.)

  Specified by:
    `hasNext` in interface `LongArray.Iterator`
  Specified by:
    `hasNext` in interface `java.util.Iterator`
  Returns:
    `true` if the iterator has more elements

### next

    public java.lang.Object next()

  Returns the next element in the iteration.

  Specified by:
    `next` in interface `LongArray.Iterator`
  Specified by:
    `next` in interface `java.util.Iterator`
  Returns:
    the next element in the iteration
  Throws:
    `java.util.NoSuchElementException` - iteration has no more elements

### getIndex

    public long getIndex()

  Returns the index of the current value, which is the value returned by the most recent call to the `next` method.

  Specified by:
    `getIndex` in interface `LongArray.Iterator`
  Throws:
    `java.lang.IllegalStateException` - if the `next` method has not yet been called, or the `remove` method has already been called after the last call to the `next` method.

### getValue

    public java.lang.Object getValue()

  Returns the current value, which is the same value returned by the most recent call to the `next` method, or the most recent value passed to `setValue` if `setValue` were called after the `next` method.

  Specified by:
    `getValue` in interface `LongArray.Iterator`
  Returns:
    the current value
  Throws:
    `java.lang.IllegalStateException` - if the `next` method has not yet been called, or the `remove` method has already been called after the last call to the `next` method.

### setValue

    public java.lang.Object setValue(java.lang.Object oValue)

  Stores a new value at the current value index, returning the value that was replaced. The index of the current value is obtainable by calling the `getIndex` method.

  Specified by:
    `setValue` in interface `LongArray.Iterator`
  Returns:
    the replaced value
  Throws:
    `java.lang.IllegalStateException` - if the `next` method has not yet been called, or the `remove` method has already been called after the last call to the `next` method.

### remove

    public void remove()

  Removes from the underlying collection the last element returned by the iterator (optional operation). This method can be called only once per call to `next`. The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.

  Specified by:
    `remove` in interface `LongArray.Iterator`
  Specified by:
    `remove` in interface `java.util.Iterator`
  Throws:
    `java.lang.UnsupportedOperationException` - if the `remove` operation is not supported by this Iterator
    `java.lang.IllegalStateException` - if the `next` method has not yet been called, or the `remove` method has already been called after the last call to the `next` method.

### toString

    public java.lang.String toString()

  Provide a string representation of this node's value.

### clone

    public java.lang.Object clone()

  Make a shallow copy of the node crawler.

### nextNode

    protected AbstractSparseArray.Node nextNode()

  Returns the next Node in the iteration.

  Returns:
    the next Node in the iteration
  Throws:
    `java.util.NoSuchElementException` - iteration has no more elements

### currentNode

    protected AbstractSparseArray.Node currentNode()

  Returns the current Node in the iteration.

  Returns:
    the current Node in the iteration
  Throws:
    `java.lang.IllegalStateException` - if the `next` method has not yet been called, or the `remove` method has already been called after the last call to the `next` method.

Overview | Package | Class | Tree | Index | Help

Oracle® Coherence Java API Reference
v3.5.3
E15583-01
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright © 2000, 2010, Oracle. All rights reserved.