Example usage for org.apache.commons.functor BinaryProcedure BinaryProcedure

Introduction

In this page you can find the example usage for org.apache.commons.functor BinaryProcedure BinaryProcedure.

Prototype

BinaryProcedure

Source Link

Usage

From source file:org.apache.commons.functor.example.map.FixedSizeMap.java

public FixedSizeMap(Map<K, V> map) {
    super(map);/*  w ww  .j  a v a  2s  . co  m*/
    setOnPut(new BinaryFunction<Map<K, V>, Object[], V>() {
        public V evaluate(Map<K, V> map, Object[] b) {
            K key = (K) Array.get(b, 0);
            V value = (V) Array.get(b, 1);
            if (map.containsKey(key)) {
                return map.put(key, value);
            } else {
                throw new IllegalArgumentException();
            }
        }
    });

    setOnPutAll(new BinaryProcedure<Map<K, V>, Map<K, V>>() {
        public void run(Map<K, V> a, Map<K, V> b) {
            Map<K, V> dest = a;
            Map<K, V> src = b;

            if (GeneratorContains.instance().test(IteratorToGeneratorAdapter.adapt(src.keySet().iterator()),
                    Not.not(new ContainsKey(dest)))) {
                throw new IllegalArgumentException();
            } else {
                dest.putAll(src);
            }
        }
    });

    setOnRemove(new BinaryProcedureBinaryFunction<Map<K, V>, K, V>(
            (BinaryProcedure<? super Map<K, V>, ? super K>) new Throw<K, V>(
                    new UnsupportedOperationException())));
    setOnClear(new Throw<K, V>(new UnsupportedOperationException()));
}

---

From source file:org.apache.commons.functor.example.map.PredicatedMap.java

public PredicatedMap(Map<K, V> map, final Predicate<K> keyPredicate, final Predicate<V> valuePredicate) {
    super(map);/* www  .ja v  a2 s  . c o  m*/
    setOnPut(new ConditionalBinaryFunction<Map<K, V>, Object[], V>(new BinaryPredicate<Map<K, V>, Object[]>() {
        @SuppressWarnings("unchecked")
        public boolean test(Map<K, V> a, Object[] b) {
            return keyPredicate.test((K) Array.get(b, 0)) && valuePredicate.test((V) Array.get(b, 1));
        }
    }, DEFAULT_ON_PUT, BinaryProcedureBinaryFunction
            .<Map<K, V>, Object[], V>adapt(new Throw<Map<K, V>, Object>(new IllegalArgumentException()))));

    setOnPutAll(new BinaryProcedure<Map<K, V>, Map<K, V>>() {
        public void run(Map<K, V> dest, Map<K, V> src) {
            for (Iterator<Map.Entry<K, V>> iter = src.entrySet().iterator(); iter.hasNext();) {
                Map.Entry<K, V> pair = iter.next();
                if (keyPredicate.test(pair.getKey()) && valuePredicate.test(pair.getValue())) {
                    dest.put(pair.getKey(), pair.getValue());
                }
            }
        }
    });
}

---