org.eclipse.eef.common.api.utils

Class Util

java.lang.Object

org.eclipse.eef.common.api.utils.Util

public final class Util
extends java.lang.Object

Shared utility methods.

Method Summary

Modifier and Type	Method and Description
static <T> java.util.Collection<T>	asCollection(java.lang.Object rawValue, java.lang.Class<T> clazz) Returns the given object as a collection and filter it with the given type.
static java.lang.String	firstNonNull(java.lang.String... alternatives) Returns the first of a series of alternative string values which is not null.
static boolean	isBlank(java.lang.String s) Tests if a string is blank (i.e. null, empty, or containing only whitespace).

Methods inherited from class java.lang.Object

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

Method Detail

firstNonNull

public static java.lang.String firstNonNull(java.lang.String... alternatives)

Returns the first of a series of alternative string values which is not null.

Parameters:

alternatives - the alernative strings, in order of preference.

Returns:

the first non-null alternative, or an empty string if they are all null.

isBlank

public static boolean isBlank(java.lang.String s)

Tests if a string is blank (i.e. null, empty, or containing only whitespace).

Parameters:

s - the string to test.

Returns:

true if and only if the string is blank.

asCollection

public static <T> java.util.Collection<T> asCollection(java.lang.Object rawValue,
                                                       java.lang.Class<T> clazz)

Returns the given object as a collection and filter it with the given type. If the object is a single object, the we will return a collection containing said object, it the object is already a collection, we will return a new collection with all its elements.

Type Parameters:

T - The type of the result wanted

Parameters:

rawValue - The raw value

clazz - The class of the result wanted

Returns:

A collection