com.graphhopper.storage

Class IntsRef

java.lang.Object

com.graphhopper.storage.IntsRef

All Implemented Interfaces:

Comparable<IntsRef>

public final class IntsRef
extends Object
implements Comparable<IntsRef>

Idea and most of the code is from Lucene. But the variables are final, except for the array content.

Field Summary

Fields

Modifier and Type	Field and Description
static IntsRef	EMPTY An IntsRef with an array of size 0.
int[]	ints The contents of the IntsRef.
int	length Length of used ints.
int	offset Offset of first valid integer.

Constructor Summary

Constructors

Constructor and Description
IntsRef(int capacity) Create a IntsRef pointing to a new int array of size capacity leading to capacity*32 bits.
IntsRef(int[] ints, int offset, int length) This instance will directly reference ints w/o making a copy.

Method Summary

Modifier and Type	Method and Description
int	compareTo(IntsRef other) Signed int order comparison
static IntsRef	deepCopyOf(IntsRef other) Creates a new IntsRef that points to a copy of the ints from other
boolean	equals(Object other)
int	hashCode()
boolean	intsEquals(IntsRef other)
boolean	isEmpty()
boolean	isValid() Performs internal consistency checks.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY

public static final IntsRef EMPTY

An IntsRef with an array of size 0.

ints

public final int[] ints

The contents of the IntsRef. Cannot be null.

offset

public final int offset

Offset of first valid integer.

length

public final int length

Length of used ints.

Constructor Detail

IntsRef

public IntsRef(int capacity)

Create a IntsRef pointing to a new int array of size capacity leading to capacity*32 bits. Offset will be zero and length will be the capacity.

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

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>

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)

toString

public String toString()

Overrides:

toString in class Object

isEmpty

public boolean isEmpty()