/*
 * Copyright 2008 the original author or authors.
 * 
 * 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.
 */
package org.openehealth.ipf.platform.camel.core.adapter;

import org.apache.camel.Exchange;
import org.apache.camel.Expression;

/**
 * An expression that evaluates to a constant parameter array inpdependent of
 * the {@link Exchange} argument.
 * 
 * @author Martin Krasser
 */
public class StaticParams implements Expression {

    private final Object[] params;

    /**
     * Creates a new {@link StaticParams} expression.
     * 
     * @param params
     *            the constant evaluation result.
     */
    public StaticParams(Object... params) {
        this.params = params;
    }
    
    /**
     * Evaluates to the params array used to construct this expression.
     * 
     * @param exchange
     *            ignored.
     * @param type
     *            ignored.
     */
	@Override
	public <T> T evaluate(Exchange exchange, Class<T> type) {
		return type.cast(params);
	}

}
