org.apache.lucene.util

Class FutureArrays

java.lang.Object

org.apache.lucene.util.FutureArrays

public final class FutureArrays
extends Object

Additional methods from Java 9's java.util.Arrays.

This class will be removed when Java 9 is minimum requirement. Currently any bytecode is patched to use the Java 9 native classes through MR-JAR (Multi-Release JAR) mechanism. In Java 8 it will use THIS implementation. Because of patching, inside the Java source files we always refer to the Lucene implementations, but the final Lucene JAR files will use the native Java 9 class names when executed with Java 9.

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

Method Summary

Modifier and Type	Method and Description
static int	compare(char[] a, int aFromIndex, int aToIndex, char[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.compare
static int	compare(int[] a, int aFromIndex, int aToIndex, int[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.compare
static int	compare(long[] a, int aFromIndex, int aToIndex, long[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.compare
static int	compareUnsigned(byte[] a, int aFromIndex, int aToIndex, byte[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.compareUnsigned
static boolean	equals(byte[] a, int aFromIndex, int aToIndex, byte[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.equals
static boolean	equals(char[] a, int aFromIndex, int aToIndex, char[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.equals
static boolean	equals(int[] a, int aFromIndex, int aToIndex, int[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.equals
static boolean	equals(long[] a, int aFromIndex, int aToIndex, long[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.equals
static int	mismatch(byte[] a, int aFromIndex, int aToIndex, byte[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.mismatch
static int	mismatch(char[] a, int aFromIndex, int aToIndex, char[] b, int bFromIndex, int bToIndex) Behaves like Java 9's Arrays.mismatch

Methods inherited from class java.lang.Object

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

Method Detail

mismatch

public static int mismatch(byte[] a,
                           int aFromIndex,
                           int aToIndex,
                           byte[] b,
                           int bFromIndex,
                           int bToIndex)

Behaves like Java 9's Arrays.mismatch

See Also:

Arrays.mismatch

compareUnsigned

public static int compareUnsigned(byte[] a,
                                  int aFromIndex,
                                  int aToIndex,
                                  byte[] b,
                                  int bFromIndex,
                                  int bToIndex)

Behaves like Java 9's Arrays.compareUnsigned

See Also:

Arrays.compareUnsigned

equals

public static boolean equals(byte[] a,
                             int aFromIndex,
                             int aToIndex,
                             byte[] b,
                             int bFromIndex,
                             int bToIndex)

Behaves like Java 9's Arrays.equals

See Also:

Arrays.equals

mismatch

public static int mismatch(char[] a,
                           int aFromIndex,
                           int aToIndex,
                           char[] b,
                           int bFromIndex,
                           int bToIndex)

Behaves like Java 9's Arrays.mismatch

See Also:

Arrays.mismatch

compare

public static int compare(char[] a,
                          int aFromIndex,
                          int aToIndex,
                          char[] b,
                          int bFromIndex,
                          int bToIndex)

Behaves like Java 9's Arrays.compare

See Also:

Arrays.compare

equals

public static boolean equals(char[] a,
                             int aFromIndex,
                             int aToIndex,
                             char[] b,
                             int bFromIndex,
                             int bToIndex)

Behaves like Java 9's Arrays.equals

See Also:

Arrays.equals

compare

public static int compare(int[] a,
                          int aFromIndex,
                          int aToIndex,
                          int[] b,
                          int bFromIndex,
                          int bToIndex)

Behaves like Java 9's Arrays.compare

See Also:

Arrays.compare

equals

public static boolean equals(int[] a,
                             int aFromIndex,
                             int aToIndex,
                             int[] b,
                             int bFromIndex,
                             int bToIndex)

Behaves like Java 9's Arrays.equals

See Also:

Arrays.equals

compare

public static int compare(long[] a,
                          int aFromIndex,
                          int aToIndex,
                          long[] b,
                          int bFromIndex,
                          int bToIndex)

Behaves like Java 9's Arrays.compare

See Also:

Arrays.compare

equals

public static boolean equals(long[] a,
                             int aFromIndex,
                             int aToIndex,
                             long[] b,
                             int bFromIndex,
                             int bToIndex)

Behaves like Java 9's Arrays.equals

See Also:

Arrays.equals