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The SoftiCAR Platform is a lightweight, Java-based library to create interactive business web applications.

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package com.softicar.platform.common.container.iterable;

import com.softicar.platform.common.container.filter.FilteringIterator;
import com.softicar.platform.common.container.iterator.MappingIterator;
import java.util.Iterator;

/**
 * An {@link Iterable} that filters and casts the elements of another
 * {@link Iterable}.
 *
 * @author Oliver Richers
 */
public class CastingIterable implements Iterable {

	private final Iterable iterable;
	private final Class targetClass;

	public CastingIterable(Iterable iterable, Class targetClass) {

		this.iterable = iterable;
		this.targetClass = targetClass;
	}

	@Override
	public Iterator iterator() {

		FilteringIterator filteringIterator = new FilteringIterator<>(iterable.iterator(), targetClass::isInstance);
		return new MappingIterator<>(filteringIterator, targetClass::cast);
	}
}