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Java example source code file (MoneyParser.java)

This example Java source code file (MoneyParser.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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moneyparser

The MoneyParser.java Java example source code

/*
 *  Copyright 2009-present, Stephen Colebourne
 *
 *  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.joda.money.format;

/**
 * Parses part of a textual input string of monetary information.
 * <p>
 * The parser is expected to start parsing at the specified text position
 * and match against whatever it represents.
 * The parsed result must be stored in the context.
 * The context also provides the current parse position which must be updated.
 * <p>
 * This interface must be implemented with care to ensure other classes operate correctly.
 * All instantiable implementations must be thread-safe, and should generally
 * be final and immutable.
 */
public interface MoneyParser {

    /**
     * Parses monetary information using a textual representation.
     * <p>
     * The text and parse index are stored in the context.
     * The parsed data and updated index is also stored in the context.
     * <p>
     * Implementations should avoid throwing exceptions and use the error index
     * in the context instead to record the problem.
     * The context can be assumed to not be in error on entry to this method.
     * <p>
     * The context is not a thread-safe object and a new instance will be created
     * for each parse. The context must not be stored in an instance variable
     * or shared with any other threads.
     * 
     * @param context  the context to use and parse into, not null
     */
    void parse(MoneyParseContext context);

}

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