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/*******************************************************************************
* Copyright (c) 2007, 2010 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.jpa.core.resource.java;
import org.eclipse.jpt.common.utility.internal.ArrayTools;
import org.eclipse.jpt.common.utility.internal.StringTools;
import org.eclipse.jpt.jpa.core.jpa2.resource.java.JPA2_0;
/**
* Corresponds to the JPA 1.0/2.0 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.
*
* @version 2.3
* @since 2.0
*/
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),
DETACH(JPA2_0.CASCADE_TYPE__DETACH); //added in JPA 2.0
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 StringTools.EMPTY_STRING_ARRAY;
}
int len = cascadeTypes.length;
if (len == 0) {
return StringTools.EMPTY_STRING_ARRAY;
}
String[] javaAnnotationValues = new String[len];
for (int i = 0; i < len; i++) {
javaAnnotationValues[i] = toJavaAnnotationValue(cascadeTypes[i]);
}
return javaAnnotationValues;
}
public static String toJavaAnnotationValue(CascadeType cascadeType) {
return (cascadeType == null) ? null : cascadeType.getJavaAnnotationValue();
}
}
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