Package org.uberfire.plugin

Class PluginUtil

java.lang.Object

org.uberfire.plugin.PluginUtil

public class PluginUtil
extends Object

Utilities for working with external (GWT-compiled) plugins.

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	ensureIterable(List<T> externalList)	List is a JsType but Collection.iterator() is JsIgnored and therefore not exported to JavaScript.
static <T> Set<T>	ensureIterable(Set<T> externalSet)	Set is a JsType but Collection.iterator() is JsIgnored and therefore not exported to JavaScript.
static Integer	toInteger(int value)	Integer is not a JsType and can't be shared across scripts.

Methods inherited from class java.lang.Object

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

Method Detail

ensureIterable

public static <T> List<T> ensureIterable(List<T> externalList)

List is a JsType but Collection.iterator() is JsIgnored and therefore not exported to JavaScript.

This method takes a list and converts it to a new list so it can be iterated over in the current script (e.g. using enhanced for loops), even if the instance was provided by an external (GWT-compiled) script.

Parameters:

externalList - A list, possibly provided by an external script. Must not be null.

Returns:

an immutable list containing the original elements of the provided list

ensureIterable

public static <T> Set<T> ensureIterable(Set<T> externalSet)

Set is a JsType but Collection.iterator() is JsIgnored and therefore not exported to JavaScript.

This method takes a set and converts it to a new set so it can be iterated over in the current script (e.g. using enhanced for loops), even if the instance was provided by an external (GWT-compiled) script.

Parameters:

externalSet - A set, possibly provided by an external script. Must not be null.

Returns:

an immutable set containing the original elements of the provided set

toInteger

public static Integer toInteger(int value)

Integer is not a JsType and can't be shared across scripts.

This method converts a regular int to an Integer using -1 as a placeholder for null.

Parameters:

value -

Returns:

boxed Integer, null if provided value is -1.