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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
There is a newer version: 2.2.20
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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package com.sun.faces.application.annotation;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import javax.faces.context.FacesContext;
import javax.persistence.PersistenceContext;

/**
 * {@link RuntimeAnnotationHandler} responsible for processing annotations.
 */
class PersistenceContextHandler extends JndiHandler implements RuntimeAnnotationHandler {

    private Method[] methods;
    private PersistenceContext[] methodAnnotations;
    private Field[] fields;
    private PersistenceContext[] fieldAnnotations;

    public PersistenceContextHandler(
            Method[] methods, PersistenceContext[] methodAnnotations,
            Field[] fields, PersistenceContext[] fieldAnnotations) {
        this.methods = methods;
        this.methodAnnotations = methodAnnotations;
        this.fields = fields;
        this.fieldAnnotations = fieldAnnotations;
    }

    @SuppressWarnings({"UnusedDeclaration"})
    @Override
    public void apply(FacesContext ctx, Object... params) {
        Object object = params[0];
        for (int i = 0; i < fields.length; i++) {
            applyToField(ctx, fields[i], fieldAnnotations[i], object);
        }

        for (int i = 0; i < methods.length; i++) {
            applyToMethod(ctx, methods[i], methodAnnotations[i], object);
        }
    }

    private void applyToMethod(FacesContext facesContext, Method method, PersistenceContext unit, Object instance) {
        if (method.getName().startsWith("set")) {
            Object value = null;
            if (unit.name() != null && !"".equals(unit.name().trim())) {
                value = lookup(facesContext, JAVA_COMP_ENV + unit.name());
            }
            invokeMethod(facesContext, method, instance, value);
        }
    }

    private void applyToField(FacesContext facesContext, Field field, PersistenceContext unit, Object instance) {
        Object value;
        if (unit.name() != null && !"".equals(unit.name().trim())) {
            value = lookup(facesContext, JAVA_COMP_ENV + unit.name());
        } else {
            value = lookup(facesContext, field.getType().getSimpleName());
        }
        setField(facesContext, field, instance, value);
    }
}