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Groovy example source code file (Parameter.java)

This example Groovy source code file (Parameter.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

annotatednode, classnode, classnode, empty_array, expression, expression, parameter, parameter, string, string, variable

The Groovy Parameter.java source code

/*
 * Copyright 2003-2010 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 org.codehaus.groovy.ast;

import org.codehaus.groovy.ast.expr.*;


/**
 * Represents a parameter on a constructor or method call. The type name is
 * optional - it defaults to java.lang.Object if unknown.
 * 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 21187 $
 */
public class Parameter extends AnnotatedNode implements Variable {

    public static final Parameter[] EMPTY_ARRAY = {
    };

    private ClassNode type;
    private final String name;
    private boolean dynamicTyped;
    private Expression defaultValue;
    private boolean hasDefaultValue;
    private boolean inStaticContext;
    private boolean closureShare=false;
    private int modifiers;
    private ClassNode originType=ClassHelper.DYNAMIC_TYPE;

    public Parameter(ClassNode type, String name) {
        this.name = name;
        this.setType(type);
        this.originType = type;
        this.hasDefaultValue = false;
    }
    
    public Parameter(ClassNode type, String name, Expression defaultValue) {
        this(type,name);
        this.defaultValue = defaultValue;
        this.hasDefaultValue = defaultValue != null;
    }

    public String toString() {
        return super.toString() + "[name:" + name + ((type == null) ? "" : " type: " + type.getName()) + ", hasDefaultValue: " + this.hasInitialExpression() + "]";
    }

    public String getName() {
        return name;
    }

    public ClassNode getType() {
        return type;
    }

    public void setType(ClassNode type) {
        this.type = type;
        dynamicTyped |= type==ClassHelper.DYNAMIC_TYPE;
    }
    
    public boolean hasInitialExpression() {
        return this.hasDefaultValue;
    }
    
    /**
     * @return the default value expression for this parameter or null if
     * no default value is specified
     */
    public Expression getInitialExpression() {
        return defaultValue;
    }
    
    public void setInitialExpression(Expression init) {
        defaultValue = init;
        hasDefaultValue = defaultValue != null;
    }
    
    public boolean isInStaticContext() {
        return inStaticContext;
    }
    
    public void setInStaticContext(boolean inStaticContext) {
        this.inStaticContext = inStaticContext;
    }

    public boolean isDynamicTyped() {
        return dynamicTyped;
    }

    public boolean isClosureSharedVariable() {
        return closureShare;
    }

    public void setClosureSharedVariable(boolean inClosure) {
        closureShare = inClosure;        
    }

    public int getModifiers() {
        return modifiers;
    }

    public ClassNode getOriginType() {
        return originType;
    }
    
    public void setOriginType(ClassNode cn) {
        originType = cn;
    }

    public void setModifiers(int modifiers) {
        this.modifiers = modifiers;
    }
}

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