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a model-based database access wrapper for JDBC

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/*
 * Copyright 2004-2011 H2 Group.
 * Copyright 2011 James Moger.
 *
 * 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 com.iciql.bytecode;

import com.iciql.Query;
import com.iciql.SQLStatement;
import com.iciql.Token;

/**
 * The Java 'null'.
 */
public class Null implements Token {

    static final Null INSTANCE = new Null();

    private Null() {
        // don't allow to create new instances
    }

    public String toString() {
        return "null";
    }

    public  void appendSQL(SQLStatement stat, Query query) {
        // untested
        stat.appendSQL("NULL");
    }

}