org.onlab.util

Class Match<T>

java.lang.Object

org.onlab.util.Match<T>

Type Parameters:

T - type of value

public final class Match<T>
extends Object

Utility class for checking matching values.

Field Summary

Fields

Modifier and Type	Field and Description
static Match	ANY
static Match	NOT_NULL
static Match	NULL

Method Summary

Modifier and Type	Method and Description
static <T> Match<T>	any() Returns a Match that matches any value including null.
boolean	equals(Object other)
int	hashCode()
static <T> Match<T>	ifNotNull() Returns a Match that matches all non-null values.
static <T> Match<T>	ifNotValue(T value) Returns a Match that matches any value except the specified value.
static <T> Match<T>	ifNull() Returns a Match that matches null values.
static <T> Match<T>	ifValue(T value) Returns a Match that only matches the specified value.
<V> Match<V>	map(Function<T,V> mapper) Maps this instance to a Match of another type.
boolean	matches(T other) Checks if this instance matches specified value.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

ANY

public static final Match ANY

NULL

public static final Match NULL

NOT_NULL

public static final Match NOT_NULL

Method Detail

any

public static <T> Match<T> any()

Returns a Match that matches any value including null.

Type Parameters:

T - match type

Returns:

new instance

ifNull

public static <T> Match<T> ifNull()

Returns a Match that matches null values.

Type Parameters:

T - match type

Returns:

new instance

ifNotNull

public static <T> Match<T> ifNotNull()

Returns a Match that matches all non-null values.

Type Parameters:

T - match type

Returns:

new instance

ifValue

public static <T> Match<T> ifValue(T value)

Returns a Match that only matches the specified value.

Type Parameters:

T - match type

Parameters:

value - value to match

Returns:

new instance

ifNotValue

public static <T> Match<T> ifNotValue(T value)

Returns a Match that matches any value except the specified value.

Type Parameters:

T - match type

Parameters:

value - value to not match

Returns:

new instance

map

public <V> Match<V> map(Function<T,V> mapper)

Maps this instance to a Match of another type.

Type Parameters:

V - new match type

Parameters:

mapper - transformation function

Returns:

new instance

matches

public boolean matches(T other)

Checks if this instance matches specified value.

Parameters:

other - other value

Returns:

true if matches; false otherwise

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object