List of usage examples for org.apache.commons.collections4.collection CompositeCollection CompositeCollection
public CompositeCollection()
From source file:net.ontopia.topicmaps.impl.basic.index.ClassInstanceIndex.java
/** * Avoids creating a generic array, which is converted back to list in CompositeCollection. *///from w w w . j av a 2 s . c o m private <T extends TMObjectIF> CompositeCollection<T> createComposite(Collection<Collection<T>> collections) { CompositeCollection<T> result = new CompositeCollection<>(); for (Collection<T> collection : collections) { result.addComposited(collection); } return result; }