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Groovy example source code file (MissingPropertyException.java)

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

Java - Groovy tags/keywords

class, class, groovyruntimeexception, missingpropertyexception, missingpropertyexception, mpe, no, object, object, reason, string, string, throwable

The Groovy MissingPropertyException.java source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * 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 groovy.lang;

import org.codehaus.groovy.runtime.MethodRankHelper;


/**
 * An exception occurred if a dynamic property dispatch fails with an unknown property.
 * 
 * Note that the Missing*Exception classes were named for consistency and
 * to avoid conflicts with JDK exceptions of the same name.
 * 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 18430 $
 */
public class MissingPropertyException extends GroovyRuntimeException {

    public static final Object MPE = new Object();

    private final String property;
    private final Class type;

    public MissingPropertyException(String property, Class type) {
        this.property = property;
        this.type = type;
    }

    public MissingPropertyException(String property, Class type, Throwable t) {
        super(t);
        this.property = property;
        this.type = type;
    }

    public MissingPropertyException(String message) {
        super(message);
        this.property = null;
        this.type = null;
    }

    public MissingPropertyException(String message, String property, Class type) {
        super(message);
        this.property = property;
        this.type = type;
    }

    public String getMessageWithoutLocationText() {
        final Throwable cause = getCause();
        if (cause == null) {
            if (super.getMessageWithoutLocationText() != null) {
                return super.getMessageWithoutLocationText();
            }
            return "No such property: " + property + " for class: " + type.getName() +
                   MethodRankHelper.getPropertySuggestionString(property, type);
        }
        return "No such property: " + property + " for class: " + type.getName() + ". Reason: " + cause;
    }

    /**
     * @return the name of the property that could not be found
     */
    public String getProperty() {
        return property;
    }

    /**
     * 
     * @return The type on which the property was attempted to be called
     */
    public Class getType() {
        return type;
    }
}

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