001/**
002 * Copyright 2005-2014 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krms.framework.engine.expression;
017
018/**
019 * Interface to extend to implement custom coerce of {@link String}s to an instance of the given type, when when validating
020 * {@link org.kuali.rice.krms.framework.engine.Proposition} {@link org.kuali.rice.krms.api.engine.Term}s
021 *
022 * @author Kuali Rice Team (rice.collab@kuali.org)
023 */
024public interface StringCoercionExtension {
025
026    /**
027     * Can this StringCoercionExtension coerce the given type and value into an Object?
028     * @param type of Object to coerce to.
029     * @param value value to use for coerced type
030     * @return boolean true if this StringCoercionExtension can coerce this type and value
031     */
032    boolean canCoerce(String type, String value);
033
034    /**
035     * Returns an Object of the given type populated with the given value.
036     * @param type to coerce Object to
037     * @param value to coerce
038     * @return Object of given type with given value
039     */
040    Object coerce(String type, String value);
041}