package com.tinkerpop.blueprints.util.wrappers.readonly;
import com.tinkerpop.blueprints.CloseableIterable;
import com.tinkerpop.blueprints.Vertex;
import java.util.Iterator;
/**
* @author Marko A. Rodriguez (http://markorodriguez.com)
*/
class ReadOnlyVertexIterable implements CloseableIterable<Vertex> {
private final Iterable<Vertex> iterable;
protected ReadOnlyVertexIterable(final Iterable<Vertex> iterable) {
this.iterable = iterable;
}
public Iterator<Vertex> iterator() {
return new Iterator<Vertex>() {
private Iterator<Vertex> itty = iterable.iterator();
public void remove() {
throw new UnsupportedOperationException(ReadOnlyTokens.MUTATE_ERROR_MESSAGE);
}
public Vertex next() {
return new ReadOnlyVertex(this.itty.next());
}
public boolean hasNext() {
return this.itty.hasNext();
}
};
}
public void close() {
if (this.iterable instanceof CloseableIterable) {
((CloseableIterable) this.iterable).close();
}
}
}