com.vaadin.client.flow

Class ConstantPool

java.lang.Object

com.vaadin.client.flow.ConstantPool

public class ConstantPool
extends Object

Map of constant values received from the server.

Since:

1.0

Author:

Vaadin Ltd

Constructor Summary

Constructors

Constructor and Description
ConstantPool()

Method Summary

Modifier and Type	Method and Description
<T> T	get(String key) Gets the constant with a given key.
boolean	has(String key) Checks whether this constant pool contains a value for the given key.
void	importFromJson(elemental.json.JsonObject json) Imports new constants into this pool.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantPool

public ConstantPool()

Method Detail

importFromJson

public void importFromJson(elemental.json.JsonObject json)

Imports new constants into this pool.

Parameters:

json - a JSON object mapping constant keys to constant values, not null

has

public boolean has(String key)

Checks whether this constant pool contains a value for the given key.

Parameters:

key - the key to check, not null

Returns:

true if there is a constant for the given key; otherwise false

get

public <T> T get(String key)

Gets the constant with a given key.

Type Parameters:

T - the constant type

Parameters:

key - the key to get a constant for, not null

Returns:

the constant value, or null if there is no constant with the given key