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package net.sf.expectit.ant.matcher;

/*
 * #%L
 * ExpectIt
 * %%
 * Copyright (C) 2014 Alexey Gavrilov and contributors
 * %%
 * 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 net.sf.expectit.Result;
import net.sf.expectit.matcher.Matcher;

/**
 * An abstract element for string based matchers.
 */
abstract class AbstractStringMatcherElement extends AbstractMatcherElement {
    private String string;

    @Override
    protected final Matcher createMatcher() {
        if (string == null) {
            throw new IllegalArgumentException("string value is required");
        }
        return getResultStringMatcher(string);
    }

    protected abstract Matcher getResultStringMatcher(final String string);
    /**
     * Sets the string for the matcher.
     *
     * @param string the string
     */
    public void setString(String string) {
        this.string = string;
    }
}