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JPA Cloner allows cloning of JPA entity subgraphs.

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package sk.nociar.jpacloner.graphs;

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

public class Literal extends GraphExplorer {
	private final String literal;

	public Literal(String literal) {
		this.literal = literal;
	}

	@Override
	public Set explore(Collection entities, EntityExplorer entityExplorer) {
		Set explored = new HashSet();
		for (Object entity : entities) {
			Collection value = entityExplorer.explore(entity, literal);
			if (value != null) {
				explored.addAll(value);
			}
		}
		return explored;
	}
}
 















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