Package org.n52.janmayen

Class Comparables

java.lang.Object

org.n52.janmayen.Comparables

public final class Comparables
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static int	EQUAL
static int	GREATER
static int	LESS

Method Summary

Modifier and Type	Method	Description
static <T> Comparator<T>	allowNull(Comparator<T> delegate)
static int	compare(boolean x, boolean y)	Compares two boolean values.
static int	compare(byte x, byte y)	Compares two byte values numerically.
static int	compare(char x, char y)	Compares two char values numerically.
static int	compare(double x, double y)	Compares two double values numerically.
static int	compare(float x, float y)	Compares two float values numerically.
static int	compare(int x, int y)	Compares two int values numerically.
static int	compare(long x, long y)	Compares two long values numerically.
static int	compare(short x, short y)	Compares two short values numerically.
static <T extends Comparable<T>> int	compare(T x, T y)	Compares two values x and y.
static int	compareUnsignedByte(byte x, byte y)	Compares two byte values numerically, but handle the byte value as an unsigned byte.
static <T> com.google.common.collect.Ordering<T>	inheritance()
static Comparator<QName>	qname()
static com.google.common.collect.Ordering<String>	version()

Methods inherited from class java.lang.Object

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

Field Detail

LESS

public static final int LESS

See Also:

Constant Field Values

EQUAL

public static final int EQUAL

See Also:

Constant Field Values

GREATER

public static final int GREATER

See Also:

Constant Field Values

Method Detail

compare

public static int compare(int x,
                          int y)

Compares two int values numerically.

Parameters:

x - The first int to compare

y - The second int to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Integer.compare(int, int)

compare

public static int compare(byte x,
                          byte y)

Compares two byte values numerically.

Parameters:

x - The first byte to compare

y - The second byte to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Byte.compare(byte, byte)

compare

public static int compare(short x,
                          short y)

Compares two short values numerically.

Parameters:

x - The first short to compare

y - The second short to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Short.compare(short, short)

compare

public static int compare(char x,
                          char y)

Compares two char values numerically.

Parameters:

x - The first char to compare

y - The second char to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Character.compare(char, char)

compare

public static int compare(long x,
                          long y)

Compares two long values numerically.

Parameters:

x - The first long to compare

y - The second long to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Long.compare(long, long)

compare

public static int compare(boolean x,
                          boolean y)

Compares two boolean values.

Parameters:

x - The first boolean to compare

y - The second boolean to compare

Returns:

the value 0 if x == y; a value less than 0 if !x && y; and a value greater than 0 if x && !y

See Also:

Boolean.compare(boolean, boolean)

compare

public static int compare(float x,
                          float y)

Compares two float values numerically.

Parameters:

x - The first float to compare

y - The second float to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Float.compare(float, float)

compare

public static int compare(double x,
                          double y)

Compares two double values numerically.

Parameters:

x - The first double to compare

y - The second double to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Double.compare(double, double)

compare

public static <T extends Comparable<T>> int compare(T x,
                                                    T y)

Compares two values x and y. null values are considered less than all other values.

Type Parameters:

T - the comparable type

Parameters:

x - The first value to compare

y - The second value to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Double.compare(double, double)

compareUnsignedByte

public static int compareUnsignedByte(byte x,
                                      byte y)

Compares two byte values numerically, but handle the byte value as an unsigned byte.

Parameters:

x - The first byte to compare

y - The second byte to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

See Also:

Byte.compare(byte, byte)

allowNull

public static <T> Comparator<T> allowNull(Comparator<T> delegate)

inheritance

public static <T> com.google.common.collect.Ordering<T> inheritance()

version

public static com.google.common.collect.Ordering<String> version()

qname

public static Comparator<QName> qname()