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Pure Functional Programming Semantics For Java

There is a newer version: 0.3.1

package org.pure4j.collections;

import java.util.Collection;

import org.pure4j.annotations.immutable.ImmutableValue;

/**
 * Each IPersistentCollection should have:
 * 
 * A no-args constructor for the empty collection
 * A constructor taking an ISeq.
 * A static create method taking a varargs array (impure)
 * An impure method taking another Collection (for copy)
 * 
 * 
 * @author robmoffat
 *
 * @param  Base-type for collection elements
 */
@ImmutableValue
public interface IPersistentCollection extends Seqable, Collection, Counted {

	IPersistentCollection cons(K o);

	IPersistentCollection empty();
	
	ITransientCollection asTransient();
	
	//IPersistentCollection addAll(ISeq items);

}