| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.openejb.core.cmp; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| |
| import javax.ejb.EJBException; |
| |
| import org.apache.openejb.OpenEJBException; |
| |
| public abstract class AbstractKeyGenerator implements KeyGenerator { |
| public static boolean isValidPkField(Field field) { |
| int modifiers = field.getModifiers(); |
| return Modifier.isPublic(modifiers) && !Modifier.isStatic(modifiers); |
| } |
| |
| public static Field getField(Class clazz, String fieldName) throws OpenEJBException { |
| try { |
| return clazz.getField(fieldName); |
| } catch (NoSuchFieldException e) { |
| throw new OpenEJBException("Unable to get primary key field from entity bean class: " + clazz.getName(), e); |
| } |
| } |
| |
| public static Object getFieldValue(Field field, Object object) throws EJBException { |
| if (field == null) throw new NullPointerException("field is null"); |
| if (object == null) throw new NullPointerException("object is null"); |
| try { |
| return field.get(object); |
| } catch (Exception e) { |
| throw new EJBException("Could not get field value for field " + field, e); |
| } |
| } |
| |
| public static void setFieldValue(Field field, Object object, Object value) throws EJBException { |
| if (field == null) throw new NullPointerException("field is null"); |
| if (object == null) throw new NullPointerException("object is null"); |
| try { |
| field.set(object, value); |
| } catch (Exception e) { |
| throw new EJBException("Could not set field value for field " + field, e); |
| } |
| } |
| } |