com.antgroup.tugraph.ogm.support

Class CollectionUtils

java.lang.Object

com.antgroup.tugraph.ogm.support.CollectionUtils

public final class CollectionUtils
extends Object

Utilities around collections.

Author:

Michael J. Simons

Method Summary

Modifier and Type	Method and Description
static Iterable<Object>	iterableOf(Object thingToIterable) Turns thingToIterable into an iterable.
static Object	materializeIterableIf(Object entryValue)

Methods inherited from class java.lang.Object

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

Method Detail

iterableOf

public static Iterable<Object> iterableOf(Object thingToIterable)

Turns thingToIterable into an iterable. In case of null, it returns an empty collection. Returns the iterable itself when the thing is already iterable. An array will be turned into an iterable. A single object will be returned as a singleton list.

Parameters:

thingToIterable - A thing that should be iterated over. Can be null.

Returns:

An iterable.

materializeIterableIf

public static Object materializeIterableIf(Object entryValue)

Parameters:

entryValue - A value that is needed as a collection.

Returns:

Returns a collection if entryValue is iterable but not already a collection.