org.graalvm.options

Class OptionMap<T>

java.lang.Object

org.graalvm.options.OptionMap<T>

Type Parameters:

T - the class of the map values

public final class OptionMap<T>
extends Object

Represents a mapping between String keys and values. Allows to create options to group/accumulate key=value pairs, with a common prefix; whose keys are not known beforehand e.g. user defined properties.

Since:

19.2

Method Summary

Modifier and Type	Method and Description
static <T> OptionMap<T>	empty() Returns an empty option map (immutable).
Set<Map.Entry<String,T>>	entrySet() Returns an unmodifiable Set view of the mappings contained in this map.
boolean	equals(Object obj)
T	get(String key) Returns the value to which the specified key is mapped, or null if this option map contains no mapping for the key.
int	hashCode()

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

empty

public static <T> OptionMap<T> empty()

Returns an empty option map (immutable).

Type Parameters:

T - the class of the map values

Returns:

an empty option map

Since:

19.2

get

public T get(String key)

Returns the value to which the specified key is mapped, or null if this option map contains no mapping for the key.

Parameters:

key - the key whose associated value is to be returned

Returns:

the value to which the specified key is mapped, or null if this map contains no mapping for the key

Since:

19.2

entrySet

public Set<Map.Entry<String,T>> entrySet()

Returns an unmodifiable Set view of the mappings contained in this map.

Returns:

a set view of the mappings contained in this map

Since:

19.2

hashCode

public int hashCode()

Overrides:

hashCode in class Object

Since:

19.2

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

Since:

19.2