## org.apache.lucene.util
Class IntsRef

    java.lang.Object
      org.apache.lucene.util.IntsRef

All Implemented Interfaces:
  Cloneable, Comparable<IntsRef>

    public final class IntsRef

extends Object
implements Comparable<IntsRef>, Cloneable

Represents int[], as a slice (offset + length) into an existing int[]. The `ints` member should never be null; use `EMPTY_INTS` if necessary.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Field Summary
`static int[]` `EMPTY_INTS` An empty integer array for convenience
`int[]` `ints` The contents of the IntsRef.
`int` `length` Length of used ints.
`int` `offset` Offset of first valid integer.

Constructor Summary
`IntsRef()` Create a IntsRef with `EMPTY_INTS`
`IntsRef(int capacity)` Create a IntsRef pointing to a new array of size `capacity`.
`IntsRef(int[] ints, int offset, int length)` This instance will directly reference ints w/o making a copy.

Method Summary
`IntsRef` `clone()`
`int` `compareTo(IntsRef other)` Signed int order comparison
`void` `copyInts(IntsRef other)`
`static IntsRef` `deepCopyOf(IntsRef other)` Creates a new IntsRef that points to a copy of the ints from `other`
`boolean` `equals(Object other)`
`void` `grow(int newLength)` Used to grow the reference array.
`int` `hashCode()`
`boolean` `intsEquals(IntsRef other)`
`boolean` `isValid()` Performs internal consistency checks.
`String` `toString()`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Field Detail

### EMPTY_INTS

    public static final int[] EMPTY_INTS

  An empty integer array for convenience

### ints

    public int[] ints

  The contents of the IntsRef. Should never be `null`.

### offset

    public int offset

  Offset of first valid integer.

### length

    public int length

  Length of used ints.

Constructor Detail

### IntsRef

    public IntsRef()

  Create a IntsRef with `EMPTY_INTS`

### IntsRef

    public IntsRef(int capacity)

  Create a IntsRef pointing to a new array of size `capacity`. Offset and length will both be zero.

### IntsRef

    public IntsRef(int[] ints,
                   int offset,
                   int length)

  This instance will directly reference ints w/o making a copy. ints should not be null.

Method Detail

### clone

    public IntsRef clone()

  Overrides:
    `clone` in class `Object`

### hashCode

    public int hashCode()

  Overrides:
    `hashCode` in class `Object`

### equals

    public boolean equals(Object other)

  Overrides:
    `equals` in class `Object`

### intsEquals

    public boolean intsEquals(IntsRef other)

### compareTo

    public int compareTo(IntsRef other)

  Signed int order comparison

  Specified by:
    `compareTo` in interface `Comparable<IntsRef>`

### copyInts

    public void copyInts(IntsRef other)

### grow

    public void grow(int newLength)

  Used to grow the reference array. In general this should not be used as it does not take the offset into account.

  NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### deepCopyOf

    public static IntsRef deepCopyOf(IntsRef other)

  Creates a new IntsRef that points to a copy of the ints from `other`

  The returned IntsRef will have a length of other.length and an offset of zero.

### isValid

    public boolean isValid()

  Performs internal consistency checks. Always returns true (or throws IllegalStateException)

Copyright © 2000-2013 Apache Software Foundation. All Rights Reserved.