package org.ff4j.lab; /* * #%L * ff4j-core * %% * Copyright (C) 2013 - 2016 FF4J * %% * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * #L% */ import org.ff4j.property.Property; public abstract class ConditionalProperty<T> extends Property<T> { /** Serial. */ private static final long serialVersionUID = 1L; /** Leverage on strategy to evaluate a property. */ protected PropertyEvaluationStrategy < T > strategy; /** {@inheritDoc} */ @Override public T getValue() { if (strategy == null) return super.getValue(); return strategy.getValue(this, null); } /** * If an execution is provided evaluate the property value. * * @param pec * evaluation strategy * @return * property value */ public T getValue(PropertyExecutionContext pec) { if (pec == null) return getValue(); if (strategy == null) return super.getValue(); return strategy.getValue(this, pec); } }