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Groovy example source code file (FieldNode.java)

This example Groovy source code file (FieldNode.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

acc_enum, acc_final, acc_public, acc_static, annotatednode, classnode, classnode, expression, expression, fieldnode, fieldnode, nosuchfieldexception, reflection, string, string

The Groovy FieldNode.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 org.codehaus.groovy.ast;

import java.lang.reflect.Field;

import org.codehaus.groovy.ast.expr.Expression;
import org.objectweb.asm.Opcodes;

/**
 * Represents a field (member variable)
 *
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 21196 $
 */
public class FieldNode extends AnnotatedNode implements Opcodes, Variable {

    private String name;
    private int modifiers;
    private ClassNode type;
    private ClassNode owner;
    private Expression initialValueExpression;
    private boolean dynamicTyped;
    private boolean holder;
    private ClassNode originType = ClassHelper.DYNAMIC_TYPE;

    public static FieldNode newStatic(Class theClass, String name) throws SecurityException, NoSuchFieldException {
        Field field = theClass.getField(name);
        ClassNode fldType = ClassHelper.make(field.getType());
        return new FieldNode(name, ACC_PUBLIC | ACC_STATIC, fldType, ClassHelper.make(theClass), null);
    }

    public FieldNode(String name, int modifiers, ClassNode type, ClassNode owner, Expression initialValueExpression) {
        this.name = name;
        this.modifiers = modifiers;
        this.type = type;
        if (this.type == ClassHelper.DYNAMIC_TYPE && initialValueExpression != null)
            this.setType(initialValueExpression.getType());
        this.setType(type);
        this.originType = type;
        this.owner = owner;
        this.initialValueExpression = initialValueExpression;
    }

    public Expression getInitialExpression() {
        return initialValueExpression;
    }

    public int getModifiers() {
        return modifiers;
    }

    public String getName() {
        return name;
    }

    public ClassNode getType() {
        return type;
    }

    public void setType(ClassNode type) {
        this.type = type;
        this.originType = type;
        dynamicTyped |= type == ClassHelper.DYNAMIC_TYPE;
    }

    public ClassNode getOwner() {
        return owner;
    }

    public boolean isHolder() {
        return holder;
    }

    public void setHolder(boolean holder) {
        this.holder = holder;
    }

    public boolean isDynamicTyped() {
        return dynamicTyped;
    }

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

    /**
     * @return true if the field is static
     */
    public boolean isStatic() {
        return (modifiers & ACC_STATIC) != 0;
    }

    /**
     * @return true if the field is an enum
     */
    public boolean isEnum() {
        return (modifiers & ACC_ENUM) != 0;
    }

    /**
     * @return true if the field is final
     */
    public boolean isFinal() {
        return (modifiers & ACC_FINAL) != 0;
    }

    /**
     * @return true if the field is public
     */
    public boolean isPublic() {
        return (modifiers & ACC_PUBLIC) != 0;
    }

    /**
     * @param owner The owner to set.
     */
    public void setOwner(ClassNode owner) {
        this.owner = owner;
    }

    public boolean hasInitialExpression() {
        return initialValueExpression != null;
    }

    public boolean isInStaticContext() {
        return isStatic();
    }

    public Expression getInitialValueExpression() {
        return initialValueExpression;
    }

    public void setInitialValueExpression(Expression initialValueExpression) {
        this.initialValueExpression = initialValueExpression;
    }

    /**
     * @deprecated
     */
    public boolean isClosureSharedVariable() {
        return false;
    }
    /**
     * @deprecated
     */
    public void setClosureSharedVariable(boolean inClosure) {                
    }

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

    public void rename(String name) {
        declaringClass.renameField(this.name, name);
        this.name = name;
    }
}

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