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/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
* [name of copyright owner]
*/
// Copyright (c) 1998, 2007, Oracle. All rights reserved.
package oracle.toplink.essentials.internal.ejb.cmp3.metadata;
import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Vector;
import javax.persistence.*;
import oracle.toplink.essentials.descriptors.ClassDescriptor;
import oracle.toplink.essentials.exceptions.ValidationException;
import oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.MetadataAccessor;
import oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.objects.MetadataAccessibleObject;
import oracle.toplink.essentials.internal.ejb.cmp3.metadata.listeners.MetadataEntityListener;
import oracle.toplink.essentials.internal.helper.Helper;
import oracle.toplink.essentials.internal.security.PrivilegedAccessHelper;
import oracle.toplink.essentials.internal.security.PrivilegedClassForName;
import oracle.toplink.essentials.internal.security.PrivilegedGetDeclaredFields;
import oracle.toplink.essentials.internal.security.PrivilegedGetDeclaredMethods;
import oracle.toplink.essentials.internal.security.PrivilegedGetField;
import oracle.toplink.essentials.internal.security.PrivilegedGetMethod;
import oracle.toplink.essentials.internal.security.PrivilegedGetMethods;
import oracle.toplink.essentials.internal.security.PrivilegedNewInstanceFromClass;
import oracle.toplink.essentials.sessions.Project;
/**
* Common helper methods for the metadata processing.
*
* @author Guy Pelletier
* @since TopLink EJB 3.0 Reference Implementation
*/
public class MetadataHelper {
public static final String IS_PROPERTY_METHOD_PREFIX = "is";
public static final String GET_PROPERTY_METHOD_PREFIX = "get";
public static final String SET_PROPERTY_METHOD_PREFIX = "set";
public static final String SET_IS_PROPERTY_METHOD_PREFIX = "setIs";
private static final int POSITION_AFTER_IS_PREFIX = IS_PROPERTY_METHOD_PREFIX.length();
private static final int POSITION_AFTER_GET_PREFIX = GET_PROPERTY_METHOD_PREFIX.length();
public static final String PERSISTENCE_PACKAGE_PREFIX = "javax.persistence";
/**
* Set of attribute level O/R annotations.
*/
private static final Set fieldOrPropertyORAnnotations =
new HashSet(Arrays.asList(
AssociationOverride.class,
AssociationOverrides.class,
AttributeOverride.class,
AttributeOverrides.class,
Basic.class,
Column.class,
Embedded.class,
EmbeddedId.class,
Enumerated.class,
GeneratedValue.class,
Id.class,
JoinColumn.class,
JoinColumns.class,
JoinTable.class,
Lob.class,
ManyToMany.class,
ManyToOne.class,
MapKey.class,
OneToMany.class,
OneToOne.class,
OrderBy.class,
PrimaryKeyJoinColumn.class,
PrimaryKeyJoinColumns.class,
SequenceGenerator.class,
TableGenerator.class,
Temporal.class,
Transient.class,
Version.class));
/**
* INTERNAL:
* Search the given sessions list of ordered descriptors for a descriptor
* for the class named the same as the given class.
*
* We do not use the session based getDescriptor() methods because they
* require the project be initialized with classes. We are avoiding using
* a project with loaded classes so the project can be constructed prior to
* any class weaving.
*/
public static ClassDescriptor findDescriptor(Project project, Class cls) {
for (ClassDescriptor descriptor : (Vector) project.getOrderedDescriptors()) {
if (descriptor.getJavaClassName().equals(cls.getName())){
return descriptor;
}
}
return null;
}
/**
* INTERNAL:
* Method to read an annotation. I think there is a bug in the JDK when
* reading annotations from classes. It returns the wrong type. Anyhow,
* this method fixes that.
*/
public static T getAnnotation(Class annotation, AnnotatedElement annotatedElement) {
return (T) annotatedElement.getAnnotation(annotation);
}
/**
* INTERNAL:
* Wrapper to the getAnnotation() call to check if we should ignore
* annotations.
*/
public static T getAnnotation(Class annotation, AnnotatedElement annotatedElement, MetadataDescriptor descriptor) {
// WIP - we should log a message to the fact of which annotations
// we are ignoring.
if (descriptor.ignoreAnnotations()) {
return null;
} else {
return (T) getAnnotation(annotation, annotatedElement);
}
}
/**
* INTERNAL:
* Wrapper to the getAnnotation() call using an Accessor.
*/
public static T getAnnotation(Class annotation, MetadataAccessor accessor) {
return (T) getAnnotation(annotation, accessor.getAnnotatedElement(), accessor.getDescriptor());
}
/**
* INTERNAL:
* Wrapper to the getAnnotation() call using an MetadataDescriptor.
*/
public static T getAnnotation(Class annotation, MetadataDescriptor descriptor) {
return (T) getAnnotation(annotation, descriptor.getJavaClass(), descriptor);
}
/**
* INTERNAL:
* Method to convert a getXyz or isXyz method name to an xyz attribute name.
* NOTE: The method name passed it may not actually be a method name, so
* by default return the name passed in.
*/
public static String getAttributeNameFromMethodName(String methodName) {
String leadingChar = "";
String restOfName = methodName;
if (methodName.startsWith(GET_PROPERTY_METHOD_PREFIX)) {
leadingChar = methodName.substring(POSITION_AFTER_GET_PREFIX, POSITION_AFTER_GET_PREFIX + 1);
restOfName = methodName.substring(POSITION_AFTER_GET_PREFIX + 1);
} else if (methodName.startsWith(IS_PROPERTY_METHOD_PREFIX)){
leadingChar = methodName.substring(POSITION_AFTER_IS_PREFIX, POSITION_AFTER_IS_PREFIX + 1);
restOfName = methodName.substring(POSITION_AFTER_IS_PREFIX + 1);
}
return leadingChar.toLowerCase().concat(restOfName);
}
/**
* INTERNAL:
* Returns the same candidate methods as an entity listener would.
*/
public static Method[] getCandidateCallbackMethodsForDefaultListener(MetadataEntityListener listener) {
return getCandidateCallbackMethodsForEntityListener(listener);
}
/**
* INTERNAL:
* Return only the actual methods declared on this entity class.
*/
public static Method[] getCandidateCallbackMethodsForEntityClass(Class entityClass) {
return getDeclaredMethods(entityClass);
}
/**
* INTERNAL:
* Returns a list of methods from the given class, which can have private,
* protected, package and public access, AND will also return public
* methods from superclasses.
*/
public static Method[] getCandidateCallbackMethodsForEntityListener(MetadataEntityListener listener) {
HashSet candidateMethods = new HashSet();
Class listenerClass = listener.getListenerClass();
// Add all the declared methods ...
Method[] declaredMethods = getDeclaredMethods(listenerClass);
for (int i = 0; i < declaredMethods.length; i++) {
candidateMethods.add(declaredMethods[i]);
}
// Now add any public methods from superclasses ...
Method[] methods = getMethods(listenerClass);
for (int i = 0; i < methods.length; i++) {
if (candidateMethods.contains(methods[i])) {
continue;
}
candidateMethods.add(methods[i]);
}
return (Method[]) candidateMethods.toArray(new Method[candidateMethods.size()]);
}
/**
* INTERNAL:
* Return potential lifecyle callback event methods for a mapped superclass.
* We must 'convert' the method to the entity class context before adding it
* to the listener.
*/
public static Method[] getCandidateCallbackMethodsForMappedSuperclass(Class mappedSuperclass, Class entityClass) {
ArrayList candidateMethods = new ArrayList();
Method[] allMethods = getMethods(entityClass);
Method[] declaredMethods = getDeclaredMethods(mappedSuperclass);
for (int i = 0; i < declaredMethods.length; i++) {
Method method = getMethodForName(allMethods, declaredMethods[i].getName());
if (method != null) {
candidateMethods.add(method);
}
}
return (Method[]) candidateMethods.toArray(new Method[candidateMethods.size()]);
}
/**
* INTERNAL:
* Load a class from a given class name.
*/
public static Class getClassForName(String classname, ClassLoader loader) {
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return (Class) AccessController.doPrivileged(new PrivilegedClassForName(classname, true, loader));
} catch (PrivilegedActionException exception) {
throw ValidationException.unableToLoadClass(classname, exception.getException());
}
} else {
return PrivilegedAccessHelper.getClassForName(classname, true, loader);
}
} catch (ClassNotFoundException exception) {
throw ValidationException.unableToLoadClass(classname, exception);
}
}
/**
* INTERNAL:
* Create a new instance of the class given.
*/
public static Object getClassInstance(Class cls) {
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return AccessController.doPrivileged(new PrivilegedNewInstanceFromClass(cls));
} catch (PrivilegedActionException exception) {
throw ValidationException.errorInstantiatingClass(cls, exception.getException());
}
} else {
return PrivilegedAccessHelper.newInstanceFromClass(cls);
}
} catch (IllegalAccessException exception) {
throw ValidationException.errorInstantiatingClass(cls, exception);
} catch (InstantiationException exception) {
throw ValidationException.errorInstantiatingClass(cls, exception);
}
}
/**
* INTERNAL:
* Create a new instance of the class name.
*/
public static Object getClassInstance(String className, ClassLoader loader) {
return getClassInstance(getClassForName(className, loader));
}
/**
* INTERNAL:
*/
public static int getDeclaredAnnotationsCount(AnnotatedElement annotatedElement, MetadataDescriptor descriptor) {
if (descriptor.ignoreAnnotations()) {
return 0;
} else {
// Look for javax.persistence annotations only.
int count = 0;
for (Annotation annotation : annotatedElement.getDeclaredAnnotations()) {
if (annotation.annotationType().getName().startsWith(PERSISTENCE_PACKAGE_PREFIX)) {
count++;
}
}
return count;
}
}
/**
* INTERNAL:
* Get the declared methods from a class using the doPriveleged security
* access. This call returns all methods (private, protected, package and
* public) on the give class ONLY. It does not traverse the superclasses.
*/
public static Method[] getDeclaredMethods(Class cls) {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return(Method[])AccessController.doPrivileged(new PrivilegedGetDeclaredMethods(cls));
} catch (PrivilegedActionException exception) {
// we will not get here, there are no checked exceptions in this call
return null;
}
} else {
return oracle.toplink.essentials.internal.security.PrivilegedAccessHelper.getDeclaredMethods(cls);
}
}
/**
* INTERNAL:
* Return the discriminator type class for the given discriminator type.
*/
public static Class getDiscriminatorType(String discriminatorType) {
if (discriminatorType.equals(MetadataConstants.CHAR)) {
return Character.class;
} else if (discriminatorType.equals(MetadataConstants.STRING)) {
return String.class;
} else if (discriminatorType.equals(MetadataConstants.INTEGER)) {
return Integer.class;
} else {
// Should never hit because of validation.
return null;
}
}
/**
* INTERNAL:
* Return the field classification for the given temporal type.
*/
public static Class getFieldClassification(String temporalType) {
if (temporalType.equals(MetadataConstants.DATE)) {
return java.sql.Date.class;
} else if (temporalType.equals(MetadataConstants.TIME)) {
return java.sql.Time.class;
} else if (temporalType.equals(MetadataConstants.TIMESTAMP)) {
return java.sql.Timestamp.class;
} else {
// Should never hit because of validation.
return null;
}
}
/**
* INTERNAL:
* Helper method that will return a given field based on the provided attribute name.
*/
public static Field getFieldForName(String fieldName, Class javaClass) {
Field field = null;
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
field = (Field)AccessController.doPrivileged(new PrivilegedGetField(javaClass, fieldName, false));
} catch (PrivilegedActionException exception) {
return null;
}
} else {
field = PrivilegedAccessHelper.getField(javaClass, fieldName, false);
}
} catch (NoSuchFieldException nsfex) {
return null;
}
return field;
}
/**
* INTERNAL:
* Get the declared fields from a class using the doPriveleged security
* access.
*/
public static Field[] getFields(Class cls) {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return (Field[])AccessController.doPrivileged(new PrivilegedGetDeclaredFields(cls));
} catch (PrivilegedActionException exception) {
// no checked exceptions are thrown, so we should not get here
return null;
}
} else {
return PrivilegedAccessHelper.getDeclaredFields(cls);
}
}
/**
* INTERNAL:
* Returns a fully qualified table name based on the values passed in.
* eg. schema.catalog.name
*/
public static String getFullyQualifiedTableName(String tableName, String catalog, String schema) {
// catalog, attach it if specified
if (! catalog.equals("")) {
tableName = catalog + "." + tableName;
}
// schema, attach it if specified
if (! schema.equals("")) {
tableName = schema + "." + tableName;
}
return tableName;
}
/**
* INTERNAL:
* Returns a fully qualified table name based on the values passed in.
* eg. schema.catalog.name
*/
public static String getFullyQualifiedTableName(String name, String defaultName, String catalog, String schema) {
// check if a name was specified otherwise use the default
String tableName = name;
if (tableName.equals("")) {
tableName = defaultName;
}
return getFullyQualifiedTableName(tableName, catalog, schema);
}
/**
* INTERNAL:
* Method to return a generic method return type.
*/
public static Type getGenericReturnType(Method method) {
// WIP - should use PrivilegedAccessController
return method.getGenericReturnType();
}
/**
* INTERNAL:
* Method to return a generic field type.
*/
public static Type getGenericType(Field field) {
// WIP - should use PrivilegedAccessController
return field.getGenericType();
}
/**
* INTERNAL:
* Helper method to return the map key type of a generic map.
* Example, Map will return String.class.
*/
public static Class getMapKeyTypeFromGeneric(Type type) {
return (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
}
/**
* INTERNAL:
* If the methodName passed in is a declared method on cls, then return
* the methodName. Otherwise return null to indicate it does not exist.
*/
protected static Method getMethod(String methodName, Class cls, Class[] params) {
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return (Method)AccessController.doPrivileged(new PrivilegedGetMethod(cls, methodName, params, true));
} catch (PrivilegedActionException exception) {
return null;
}
} else {
return PrivilegedAccessHelper.getMethod(cls, methodName, params, true);
}
} catch (NoSuchMethodException e1) {
return null;
}
}
/**
* INTERNAL:
* Find the method in the list where method.getName() == methodName.
*/
public static Method getMethodForName(Method[] methods, String methodName) {
for (int i = 0; i < methods.length; i++) {
Method method = methods[i];
if (method.getName().equals(methodName)) {
return method;
}
}
return null;
}
/**
* INTERNAL:
* Method to convert an xyz property name into a getXyz or isXyz method.
*/
public static Method getMethodForPropertyName(String propertyName, Class cls) {
Method method;
String leadingChar = String.valueOf(propertyName.charAt(0)).toUpperCase();
String restOfName = propertyName.substring(1);
// Look for a getPropertyName() method
method = getMethod(GET_PROPERTY_METHOD_PREFIX.concat(leadingChar).concat(restOfName), cls, new Class[]{});
if (method == null) {
// Look for an isPropertyName() method
method = getMethod(IS_PROPERTY_METHOD_PREFIX.concat(leadingChar).concat(restOfName), cls, new Class[]{});
}
return method;
}
/**
* INTERNAL:
* Get the methods from a class using the doPriveleged security access.
* This call returns only public methods from the given class and its
* superclasses.
*/
public static Method[] getMethods(Class cls) {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return (Method[])AccessController.doPrivileged(new PrivilegedGetMethods(cls));
} catch (PrivilegedActionException exception) {
return null;
}
} else {
return PrivilegedAccessHelper.getMethods(cls);
}
}
/**
* INTERNAL:
* Return the raw class of the generic type.
*/
public static Class getRawClassFromGeneric(Type type) {
return (Class)(((ParameterizedType) type).getRawType());
}
/**
* INTERNAL:
* Helper method to return the type class of a ParameterizedType. This will
* handle the case for a generic collection. It now supports multiple types,
* e.g. Map
*/
public static Class getReturnTypeFromGeneric(Type type) {
ParameterizedType pType = (ParameterizedType) type;
if (java.util.Map.class.isAssignableFrom((Class) pType.getRawType())) {
return (Class) pType.getActualTypeArguments()[1];
}
return (Class) pType.getActualTypeArguments()[0];
}
/**
* INTERNAL:
* Method to convert a getMethod into a setMethod. This method could return
* null if the corresponding set method is not found.
*/
public static Method getSetMethod(Method method, Class cls) {
String getMethodName = method.getName();
Class[] params = new Class[] { method.getReturnType() };
if (getMethodName.startsWith(GET_PROPERTY_METHOD_PREFIX)) {
// Replace 'get' with 'set'.
return getMethod(SET_PROPERTY_METHOD_PREFIX + getMethodName.substring(3), cls, params);
}
// methodName.startsWith(IS_PROPERTY_METHOD_PREFIX)
// Check for a setXyz method first, if it exists use it.
Method setMethod = getMethod(SET_PROPERTY_METHOD_PREFIX + getMethodName.substring(2), cls, params);
if (setMethod == null) {
// setXyz method was not found try setIsXyz
return getMethod(SET_IS_PROPERTY_METHOD_PREFIX + getMethodName.substring(2), cls, params);
}
return setMethod;
}
/**
* INTERNAL:
*/
public static boolean havePersistenceAnnotationsDefined(AnnotatedElement[] annotatedElements) {
for (AnnotatedElement annotatedElement : annotatedElements) {
for (Annotation annotation : annotatedElement.getDeclaredAnnotations()) {
if (annotation.annotationType().getName().startsWith(PERSISTENCE_PACKAGE_PREFIX)) {
return true;
}
}
}
return false;
}
/**
* INTERNAL:
*
* Indicates whether the specified annotation is actually not present on
* the specified class. Used for defaulting. Need this check since the
* isAnnotationPresent calls can return a false when true because of the
* meta-data complete feature.
*/
public static boolean isAnnotationNotPresent(Class annotation, AnnotatedElement annotatedElement) {
return ! annotatedElement.isAnnotationPresent(annotation);
}
/**
* INTERNAL:
*
* Indicates whether the specified annotation is present on the specified
* class.
*/
public static boolean isAnnotationPresent(Class annotation, AnnotatedElement annotatedElement) {
return annotatedElement.isAnnotationPresent(annotation);
}
/**
* INTERNAL:
*
* Indicates whether the specified annotation is present on the specified
* class.
*/
public static boolean isAnnotationPresent(Class annotation, AnnotatedElement annotatedElement, MetadataDescriptor descriptor) {
// WIP - we should log a message to the fact of which annotations
// we are ignoring.
if (descriptor.ignoreAnnotations()) {
return false;
} else {
return isAnnotationPresent(annotation, annotatedElement);
}
}
/**
* INTERNAL:
*
* Indicates whether the specified annotation is present on java class
* for the given descriptor metadata.
*/
public static boolean isAnnotationPresent(Class annotation, MetadataDescriptor descriptor) {
return isAnnotationPresent(annotation, descriptor.getJavaClass(), descriptor);
}
/**
* INTERNAL:
*
* Return true if this accessor represents a basic mapping.
*/
public static boolean isBasic(MetadataAccessibleObject annotatedAccessor, MetadataDescriptor descriptor) {
AnnotatedElement annotatedElement = annotatedAccessor.getAnnotatedElement();
return isAnnotationPresent(Basic.class, annotatedElement, descriptor) ||
isAnnotationPresent(Lob.class, annotatedElement, descriptor) ||
isAnnotationPresent(Temporal.class, annotatedElement, descriptor) ||
isAnnotationPresent(Enumerated.class, annotatedElement, descriptor);
}
/**
* INTERNAL:
*
* Method to return whether a class is a collection or not.
*/
public static boolean isCollectionClass(Class cls) {
return Collection.class.isAssignableFrom(cls);
}
/**
* INTERNAL:
*
* Return true if this accessor represents an aggregate mapping. True is
* returned id and @Embedded is found or if an @Embeddable is found on the
* raw/reference class.
*/
public static boolean isEmbedded(MetadataAccessibleObject accessibleObject, MetadataDescriptor descriptor) {
AnnotatedElement annotatedElement = accessibleObject.getAnnotatedElement();
if (isAnnotationNotPresent(Embedded.class, annotatedElement) && isAnnotationNotPresent(EmbeddedId.class, annotatedElement)) {
Class rawClass = accessibleObject.getRawClass();
return (isAnnotationPresent(Embeddable.class, rawClass) || descriptor.getClassAccessor().getProject().hasEmbeddable(rawClass));
} else {
// Still need to make the call since we may need to ignore it
// because of meta-data complete.
return isAnnotationPresent(Embedded.class, annotatedElement, descriptor);
}
}
/**
* INTERNAL:
*
* Return true if this accessor represents an aggregate mapping. True is
* returned id and @Embedded is found or if an @Embeddable is found on the
* reference class.
*/
public static boolean isEmbeddedId(MetadataAccessibleObject accessibleObject, MetadataDescriptor descriptor) {
return isAnnotationPresent(EmbeddedId.class, accessibleObject.getAnnotatedElement(), descriptor);
}
/**
* INTERNAL:
*
* Method to return whether a collection type is a generic.
*/
public static boolean isGenericCollectionType(Type type) {
return (type instanceof ParameterizedType);
}
/**
* INTERNAL:
*
* Return true if this field accessor represents a m-m relationship.
*/
public static boolean isManyToMany(MetadataAccessibleObject accessibleObject, MetadataDescriptor descriptor) {
Class rawClass = accessibleObject.getRawClass();
AnnotatedElement annotatedElement = accessibleObject.getAnnotatedElement();
if (isAnnotationPresent(ManyToMany.class, annotatedElement, descriptor)) {
if (MetadataHelper.isSupportedCollectionClass(rawClass)) {
return true;
} else {
descriptor.getValidator().throwInvalidCollectionTypeForRelationship(descriptor.getJavaClass(), rawClass, annotatedElement);
}
}
return false;
}
/**
* INTERNAL:
*
* Return true if this accessor represents a m-1 relationship.
*/
public static boolean isManyToOne(MetadataAccessibleObject annotatedAccessor, MetadataDescriptor descriptor) {
return isAnnotationPresent(ManyToOne.class, annotatedAccessor.getAnnotatedElement(), descriptor);
}
/**
* INTERNAL:
*
* Method to return whether a class is a map or not.
*/
public static boolean isMapClass(Class cls) {
return Map.class.isAssignableFrom(cls);
}
/**
* INTERNAL:
*
* Return true if this accessor represents a 1-m relationship.
*/
public static boolean isOneToMany(MetadataAccessibleObject accessibleObject, MetadataDescriptor descriptor) {
AnnotatedElement annotatedElement = accessibleObject.getAnnotatedElement();
if (isAnnotationNotPresent(OneToMany.class, annotatedElement)) {
if (MetadataHelper.isGenericCollectionType(accessibleObject.getRelationType()) &&
MetadataHelper.isSupportedCollectionClass(accessibleObject.getRawClass()) &&
descriptor.getProject().containsDescriptor(accessibleObject.getReferenceClassFromGeneric())) {
descriptor.getLogger().logConfigMessage(MetadataLogger.ONE_TO_MANY_MAPPING, annotatedElement);
return true;
}
} else {
// Still need to make the call since we may need to ignore it
// because of meta-data complete.
if (isAnnotationPresent(OneToMany.class, annotatedElement, descriptor)) {
if (MetadataHelper.isSupportedCollectionClass(accessibleObject.getRawClass())) {
return true;
} else {
descriptor.getValidator().throwInvalidCollectionTypeForRelationship(descriptor.getJavaClass(), accessibleObject.getRawClass(), annotatedElement);
}
}
}
return false;
}
/**
* INTERNAL:
*
* Return true if this accessor represents a 1-1 relationship.
*/
public static boolean isOneToOne(MetadataAccessibleObject accessibleObject, MetadataDescriptor descriptor) {
AnnotatedElement annotatedElement = accessibleObject.getAnnotatedElement();
if (isAnnotationNotPresent(OneToOne.class, annotatedElement)) {
if (descriptor.getProject().containsDescriptor(accessibleObject.getRawClass()) &&
! isEmbedded(accessibleObject, descriptor)) {
descriptor.getLogger().logConfigMessage(MetadataLogger.ONE_TO_ONE_MAPPING, annotatedElement);
return true;
} else {
return false;
}
} else {
// Still need to make the call since we may need to ignore it
// because of meta-data complete.
return isAnnotationPresent(OneToOne.class, annotatedElement, descriptor);
}
}
/**
* INTERNAL:
*
* Returns true is the given class is primitive wrapper type.
*/
public static boolean isPrimitiveWrapperClass(Class cls) {
return Long.class.isAssignableFrom(cls) ||
Short.class.isAssignableFrom(cls) ||
Float.class.isAssignableFrom(cls) ||
Byte.class.isAssignableFrom(cls) ||
Double.class.isAssignableFrom(cls) ||
Number.class.isAssignableFrom(cls) ||
Boolean.class.isAssignableFrom(cls) ||
Integer.class.isAssignableFrom(cls) ||
Character.class.isAssignableFrom(cls) ||
String.class.isAssignableFrom(cls) ||
java.math.BigInteger.class.isAssignableFrom(cls) ||
java.math.BigDecimal.class.isAssignableFrom(cls) ||
java.util.Date.class.isAssignableFrom(cls) ||
java.util.Calendar.class.isAssignableFrom(cls);
}
/**
* INTERNAL:
*
* Method to return whether a class is a supported Collection. EJB 3.0 spec
* currently only supports Collection, Set, List and Map.
*/
public static boolean isSupportedCollectionClass(Class cls) {
return cls.equals(Collection.class) ||
cls.equals(Set.class) ||
cls.equals(List.class) ||
cls.equals(Map.class);
}
/**
* INTERNAL:
*
* Search the class for an attribute with a name matching 'attributeName'
*/
public static boolean isValidAttributeName(String attributeName, Class javaClass) {
Field attributes[] = getFields(javaClass);
for (int i = 0; i < attributes.length; i++) {
if (attributes[i].getName().equals(attributeName)) {
return true;
}
}
return false;
}
/**
* INTERNAL:
*
* Returns true if the given class is a valid blob type.
*/
public static boolean isValidBlobType(Class cls) {
return cls.equals(byte[].class) ||
cls.equals(Byte[].class) ||
cls.equals(java.sql.Blob.class);
}
/**
* INTERNAL:
*
* Returns true if the given class is a valid clob type.
*/
public static boolean isValidClobType(Class cls) {
return cls.equals(char[].class) ||
cls.equals(String.class) ||
cls.equals(Character[].class) ||
cls.equals(java.sql.Clob.class);
}
/**
* INTERNAL:
*
* Return true if the given class is a valid enum type.
*/
public static boolean isValidEnumeratedType(Class cls) {
return cls.isEnum();
}
/**
* INTERNAL:
*
* Returns true if the given class is a valid lob type.
*/
public static boolean isValidLobType(Class cls) {
return isValidClobType(cls) || isValidBlobType(cls);
}
/**
* INTERNAL:
*/
public static boolean isValidPersistenceMethodName(String methodName) {
return methodName.startsWith(GET_PROPERTY_METHOD_PREFIX) || methodName.startsWith(IS_PROPERTY_METHOD_PREFIX);
}
/**
* INTERNAL:
*
* Returns true if the given class is valid for SerializedObjectMapping.
*/
public static boolean isValidSerializedType(Class cls) {
if (cls.isPrimitive()) {
return false;
}
if (isPrimitiveWrapperClass(cls)) {
return false;
}
if (isValidLobType(cls)) {
return false;
}
if (isValidTemporalType(cls)) {
return false;
}
return true;
}
/**
* INTERNAL:
*
* Returns true if the given class is a valid temporal type and must be
* marked temporal.
*/
public static boolean isValidTemporalType(Class cls) {
return (cls.equals(java.util.Date.class) ||
cls.equals(java.util.Calendar.class) ||
cls.equals(java.util.GregorianCalendar.class));
}
/**
* INTERNAL:
*
* Returns true if the given class is a valid timestamp locking type.
*/
public static boolean isValidTimstampVersionLockingType(Class cls) {
return (cls.equals(java.sql.Timestamp.class));
}
/**
* INTERNAL:
*
* Returns true if the given class is a valid version locking type.
*/
public static boolean isValidVersionLockingType(Class cls) {
return (cls.equals(int.class) ||
cls.equals(Integer.class) ||
cls.equals(short.class) ||
cls.equals(Short.class) ||
cls.equals(long.class) ||
cls.equals(Long.class));
}
/**
* INTERNAL:
*
* Indicates whether the class should ignore annotations. Note that such
* classes should already have their descriptors with PKs added to
* session's project.
*/
public static boolean shouldIgnoreAnnotations(Class cls, HashMap metadataDescriptors) {
MetadataDescriptor descriptor = metadataDescriptors.get(cls);
if (descriptor != null) {
return descriptor.ignoreAnnotations();
} else {
return false;
}
}
}
