cosmos.sql.call.Fields.java Source code

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Here is the source code for cosmos.sql.call.Fields.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to you 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.
 *
 *  Copyright 2013 
 *
 */
package cosmos.sql.call;

import java.util.Collections;
import java.util.List;

import com.google.common.collect.Lists;

/**
 * Defines a set of fields.
 * 
 */
public class Fields implements CallIfc<Field> {

    protected List<Field> fields;

    public Fields(List<String> literal) {
        fields = Lists.newArrayListWithCapacity(literal.size());

        for (String field : literal) {
            addChild(literal.toString(), new Field(field));
        }
    }

    @Override
    public CallIfc<?> addChild(String id, Field child) {
        if (child instanceof Field) {
            fields.add((Field) child);
        }
        return this;
    }

    public List<Field> getFields() {
        return Collections.unmodifiableList(fields);
    }

}