| /******************************************************************************* |
| * Copyright (c) 2007, 2009 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0, which accompanies this distribution |
| * and is available at http://www.eclipse.org/legal/epl-v10.html. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.core.resource.java; |
| |
| import org.eclipse.jpt.utility.internal.ArrayTools; |
| |
| /** |
| * Corresponds to the JPA enum |
| * javax.persistence.CascadeType |
| * |
| * Provisional API: This interface is part of an interim API that is still |
| * under development and expected to change significantly before reaching |
| * stability. It is available at this early stage to solicit feedback from |
| * pioneering adopters on the understanding that any code that uses this API |
| * will almost certainly be broken (repeatedly) as the API evolves. |
| */ |
| public enum CascadeType { |
| |
| ALL(JPA.CASCADE_TYPE__ALL), |
| PERSIST(JPA.CASCADE_TYPE__PERSIST), |
| MERGE(JPA.CASCADE_TYPE__MERGE), |
| REMOVE(JPA.CASCADE_TYPE__REMOVE), |
| REFRESH(JPA.CASCADE_TYPE__REFRESH); |
| |
| |
| private String javaAnnotationValue; |
| |
| CascadeType(String javaAnnotationValue) { |
| if (javaAnnotationValue == null) { |
| throw new NullPointerException(); |
| } |
| this.javaAnnotationValue = javaAnnotationValue; |
| } |
| |
| public String getJavaAnnotationValue() { |
| return this.javaAnnotationValue; |
| } |
| |
| |
| // ********** static methods ********** |
| |
| public static CascadeType[] fromJavaAnnotationValues(Object[] javaAnnotationValues) { |
| if (javaAnnotationValues == null) { |
| return EMPTY_CASCADE_TYPE_ARRAY; |
| } |
| if (javaAnnotationValues.length == 0) { |
| return EMPTY_CASCADE_TYPE_ARRAY; |
| } |
| //nulls will exist if there is a typo in one of the enums |
| javaAnnotationValues = ArrayTools.removeAllOccurrences(javaAnnotationValues, null); |
| int len = javaAnnotationValues.length; |
| CascadeType[] cascadeTypes = new CascadeType[len]; |
| for (int i = 0; i < len; i++) { |
| cascadeTypes[i] = fromJavaAnnotationValue(javaAnnotationValues[i]); |
| } |
| return cascadeTypes; |
| } |
| private static final CascadeType[] EMPTY_CASCADE_TYPE_ARRAY = new CascadeType[0]; |
| |
| public static CascadeType fromJavaAnnotationValue(Object javaAnnotationValue) { |
| return (javaAnnotationValue == null) ? null : fromJavaAnnotationValue_(javaAnnotationValue); |
| } |
| |
| private static CascadeType fromJavaAnnotationValue_(Object javaAnnotationValue) { |
| for (CascadeType cascadeType : CascadeType.values()) { |
| if (cascadeType.getJavaAnnotationValue().equals(javaAnnotationValue)) { |
| return cascadeType; |
| } |
| } |
| return null; |
| } |
| |
| public static String[] toJavaAnnotationValues(CascadeType[] cascadeTypes) { |
| if (cascadeTypes == null) { |
| return EMPTY_STRING_ARRAY; |
| } |
| int len = cascadeTypes.length; |
| if (len == 0) { |
| return EMPTY_STRING_ARRAY; |
| } |
| |
| String[] javaAnnotationValues = new String[len]; |
| for (int i = 0; i < len; i++) { |
| javaAnnotationValues[i] = toJavaAnnotationValue(cascadeTypes[i]); |
| } |
| return javaAnnotationValues; |
| } |
| private static final String[] EMPTY_STRING_ARRAY = new String[0]; |
| |
| public static String toJavaAnnotationValue(CascadeType cascadeType) { |
| return (cascadeType == null) ? null : cascadeType.getJavaAnnotationValue(); |
| } |
| |
| } |