org.eclipse.persistence.jaxb.javamodel.reflection.JavaFieldImpl Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation
EclipseLink build based upon Git transaction f2b9fc5
There is a newer version: 5.0.0-B03
/*
 * Copyright (c) 1998, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.jaxb.javamodel.reflection;

import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.jaxb.javamodel.JavaAnnotation;
import org.eclipse.persistence.jaxb.javamodel.JavaClass;
import org.eclipse.persistence.jaxb.javamodel.JavaField;

import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collection;

/**
 * INTERNAL:
 * Purpose:A wrapper class for a JDK Field.  This implementation
 * of the TopLink JAXB 2.0 Java model simply makes reflective calls on the
 * underlying JDK object.
 *
 * 
Responsibilities:
 * 

 * Provide access to the underlying field's name, type,
 * modifiers, annotations, etc.
 * 
 *
 * @since Oracle TopLink 11.1.1.0.0
 * @see org.eclipse.persistence.jaxb.javamodel.JavaField
 * @see java.lang.reflect.Field
 */
public class JavaFieldImpl implements JavaField {

    protected Field jField;
    private JavaModelImpl javaModelImpl;
    protected boolean isMetadataComplete;

    public JavaFieldImpl(Field javaField, JavaModelImpl javaModelImpl) {
        this(javaField, javaModelImpl, false);
    }

    public JavaFieldImpl(Field javaField, JavaModelImpl javaModelImpl, Boolean isMetadataComplete) {
        this.jField = javaField;
        this.javaModelImpl = javaModelImpl;
        if(isMetadataComplete != null){
            this.isMetadataComplete = isMetadataComplete;
        }
    }

    public JavaAnnotation getAnnotation(JavaClass arg0) {
        if (arg0 != null && !isMetadataComplete) {
            Class annotationClass = ((JavaClassImpl) arg0).getJavaClass();
            if (javaModelImpl.getAnnotationHelper().isAnnotationPresent(getAnnotatedElement(), annotationClass)) {
                return new JavaAnnotationImpl(javaModelImpl.getAnnotationHelper().getAnnotation(getAnnotatedElement(), annotationClass));
            }
        }
        return null;
    }

    public Collection getAnnotations() {
        ArrayList annotationCollection = new ArrayList();
        if (!isMetadataComplete) {
            Annotation[] annotations = javaModelImpl.getAnnotationHelper().getAnnotations(getAnnotatedElement());
            for (Annotation annotation : annotations) {
                annotationCollection.add(new JavaAnnotationImpl(annotation));
            }
        }
        return annotationCollection;
    }

    public int getModifiers() {
        return jField.getModifiers();
    }

    public String getName() {
        return jField.getName();
    }

    public JavaClass getOwningClass() {
        return javaModelImpl.getClass(jField.getDeclaringClass());
    }

    public JavaClass getResolvedType() {
        Class fieldType = jField.getType();
        Type genericType = jField.getGenericType();

        if (genericType instanceof ParameterizedType) {
            ParameterizedType pType = (ParameterizedType) genericType;
            return new JavaClassImpl(pType, (Class) pType.getRawType(), javaModelImpl);
        }
        return javaModelImpl.getClass(fieldType);
    }

    public boolean isFinal() {
        return Modifier.isFinal(getModifiers());
    }

    public boolean isSynthetic() {
        return jField.isSynthetic();
    }

    public AnnotatedElement getAnnotatedElement() {
        return jField;
    }
    public Object get(Object obj) throws IllegalAccessException {
        return PrivilegedAccessHelper.getValueFromField(jField, obj);
    }

    public boolean isAbstract() {
        return Modifier.isAbstract(getModifiers());
    }

    public boolean isPrivate() {
        return Modifier.isPrivate(getModifiers());
    }

    public boolean isProtected() {
        return Modifier.isProtected(getModifiers());
    }

    public boolean isPublic() {
        return Modifier.isPublic(getModifiers());
    }

    public boolean isStatic() {
        return Modifier.isStatic(getModifiers());
    }

    public boolean isEnumConstant() {
        return jField.isEnumConstant();
    }

    //  ---------------- unimplemented methods ----------------//
    public JavaAnnotation getDeclaredAnnotation(JavaClass arg0) {
        return null;
    }

    public Collection getDeclaredAnnotations() {
        return null;
    }
}