标签：propertyIterator SpringDataJPA AccessType 顺序 hibernate org import DM class
在自己项目中创建一个和源码类一样的包结构和一样名字的类，把所有源码中的所有代码复制到你创建的那个类中，然后，就可以对你创建的类 进行修改了，修改好之后启动项目，你就会发现程序走的是你创建的那个类，数据库的所有字段都是和实体类排序一样的了。
注意：目录名和类名要保持一致
package org.hibernate.cfg;
import java.util.*;
import javax.persistence.Access;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.Transient;
import org.hibernate.AnnotationException;
import org.hibernate.annotations.Any;
import org.hibernate.annotations.ManyToAny;
import org.hibernate.annotations.Target;
import org.hibernate.annotations.Type;
import org.hibernate.annotations.common.reflection.XClass;
import org.hibernate.annotations.common.reflection.XProperty;
import org.hibernate.boot.MappingException;
import org.hibernate.boot.jaxb.Origin;
import org.hibernate.boot.jaxb.SourceType;
import org.hibernate.cfg.annotations.HCANNHelper;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.internal.util.StringHelper;
import org.jboss.logging.Logger;
class PropertyContainer {
private static final CoreMessageLogger LOG = Logger.getMessageLogger(CoreMessageLogger.class, PropertyContainer.class.getName());
private final XClass xClass;
private final XClass entityAtStake;
private final AccessType classLevelAccessType;
private final LinkedHashMap<String, XProperty> persistentAttributeMap;
PropertyContainer(XClass clazz, XClass entityAtStake, AccessType defaultClassLevelAccessType) {
this.xClass = clazz;
this.entityAtStake = entityAtStake;
if (defaultClassLevelAccessType == AccessType.DEFAULT) {
defaultClassLevelAccessType = AccessType.PROPERTY;
}
AccessType localClassLevelAccessType = this.determineLocalClassDefinedAccessStrategy();
assert localClassLevelAccessType != null;
this.classLevelAccessType = localClassLevelAccessType != AccessType.DEFAULT ? localClassLevelAccessType : defaultClassLevelAccessType;
assert this.classLevelAccessType == AccessType.FIELD || this.classLevelAccessType == AccessType.PROPERTY;
this.persistentAttributeMap = new LinkedHashMap<>();
List<XProperty> fields = this.xClass.getDeclaredProperties(AccessType.FIELD.getType());
List<XProperty> getters = this.xClass.getDeclaredProperties(AccessType.PROPERTY.getType());
this.preFilter(fields, getters);
Map<String, XProperty> persistentAttributesFromGetters = new HashMap();
this.collectPersistentAttributesUsingLocalAccessType(this.persistentAttributeMap, persistentAttributesFromGetters, fields, getters);
this.collectPersistentAttributesUsingClassLevelAccessType(this.persistentAttributeMap, persistentAttributesFromGetters, fields, getters);
}
private void preFilter(List<XProperty> fields, List<XProperty> getters) {
Iterator propertyIterator = fields.iterator();
XProperty property;
while(propertyIterator.hasNext()) {
property = (XProperty)propertyIterator.next();
if (mustBeSkipped(property)) {
propertyIterator.remove();
}
}
propertyIterator = getters.iterator();
while(propertyIterator.hasNext()) {
property = (XProperty)propertyIterator.next();
if (mustBeSkipped(property)) {
propertyIterator.remove();
}
}
}
private void collectPersistentAttributesUsingLocalAccessType(LinkedHashMap<String, XProperty> persistentAttributeMap, Map<String, XProperty> persistentAttributesFromGetters, List<XProperty> fields, List<XProperty> getters) {
Iterator propertyIterator = fields.iterator();
XProperty xProperty;
Access localAccessAnnotation;
while(propertyIterator.hasNext()) {
xProperty = (XProperty)propertyIterator.next();
localAccessAnnotation = xProperty.getAnnotation(Access.class);
if (localAccessAnnotation != null && localAccessAnnotation.value() == javax.persistence.AccessType.FIELD) {
propertyIterator.remove();
persistentAttributeMap.put(xProperty.getName(), xProperty);
}
}
propertyIterator = getters.iterator();
while(propertyIterator.hasNext()) {
xProperty = (XProperty)propertyIterator.next();
localAccessAnnotation = xProperty.getAnnotation(Access.class);
if (localAccessAnnotation != null && localAccessAnnotation.value() == javax.persistence.AccessType.PROPERTY) {
propertyIterator.remove();
String name = xProperty.getName();
XProperty previous = persistentAttributesFromGetters.get(name);
if (previous != null) {
throw new MappingException(LOG.ambiguousPropertyMethods(this.xClass.getName(), HCANNHelper.annotatedElementSignature(previous), HCANNHelper.annotatedElementSignature(xProperty)), new Origin(SourceType.ANNOTATION, this.xClass.getName()));
}
persistentAttributeMap.put(name, xProperty);
persistentAttributesFromGetters.put(name, xProperty);
}
}
}
private void collectPersistentAttributesUsingClassLevelAccessType(LinkedHashMap<String, XProperty> persistentAttributeMap, Map<String, XProperty> persistentAttributesFromGetters, List<XProperty> fields, List<XProperty> getters) {
Iterator var5;
XProperty getter;
if (this.classLevelAccessType == AccessType.FIELD) {
var5 = fields.iterator();
while(var5.hasNext()) {
getter = (XProperty)var5.next();
if (!persistentAttributeMap.containsKey(getter.getName())) {
persistentAttributeMap.put(getter.getName(), getter);
}
}
} else {
var5 = getters.iterator();
while(var5.hasNext()) {
getter = (XProperty)var5.next();
String name = getter.getName();
XProperty previous = persistentAttributesFromGetters.get(name);
if (previous != null) {
throw new MappingException(LOG.ambiguousPropertyMethods(this.xClass.getName(), HCANNHelper.annotatedElementSignature(previous), HCANNHelper.annotatedElementSignature(getter)), new Origin(SourceType.ANNOTATION, this.xClass.getName()));
}
if (!persistentAttributeMap.containsKey(name)) {
persistentAttributeMap.put(getter.getName(), getter);
persistentAttributesFromGetters.put(name, getter);
}
}
}
}
public XClass getEntityAtStake() {
return this.entityAtStake;
}
public XClass getDeclaringClass() {
return this.xClass;
}
public AccessType getClassLevelAccessType() {
return this.classLevelAccessType;
}
public Collection<XProperty> getProperties() {
this.assertTypesAreResolvable();
return Collections.unmodifiableCollection(this.persistentAttributeMap.values());
}
private void assertTypesAreResolvable() {
Iterator var1 = this.persistentAttributeMap.values().iterator();
XProperty xProperty;
do {
if (!var1.hasNext()) {
return;
}
xProperty = (XProperty)var1.next();
} while(xProperty.isTypeResolved() || discoverTypeWithoutReflection(xProperty));
String msg = "Property " + StringHelper.qualify(this.xClass.getName(), xProperty.getName()) + " has an unbound type and no explicit target entity. Resolve this Generic usage issue or set an explicit target attribute (eg @OneToMany(target=) or use an explicit @Type";
throw new AnnotationException(msg);
}
private AccessType determineLocalClassDefinedAccessStrategy() {
AccessType hibernateDefinedAccessType = AccessType.DEFAULT;
AccessType jpaDefinedAccessType = AccessType.DEFAULT;
org.hibernate.annotations.AccessType accessType = this.xClass.getAnnotation(org.hibernate.annotations.AccessType.class);
if (accessType != null) {
hibernateDefinedAccessType = AccessType.getAccessStrategy(accessType.value());
}
Access access = this.xClass.getAnnotation(Access.class);
if (access != null) {
jpaDefinedAccessType = AccessType.getAccessStrategy(access.value());
}
if (hibernateDefinedAccessType != AccessType.DEFAULT && jpaDefinedAccessType != AccessType.DEFAULT && hibernateDefinedAccessType != jpaDefinedAccessType) {
throw new org.hibernate.MappingException("@AccessType and @Access specified with contradicting values. Use of @Access only is recommended. ");
} else {
AccessType classDefinedAccessType;
if (hibernateDefinedAccessType != AccessType.DEFAULT) {
classDefinedAccessType = hibernateDefinedAccessType;
} else {
classDefinedAccessType = jpaDefinedAccessType;
}
return classDefinedAccessType;
}
}
private static boolean discoverTypeWithoutReflection(XProperty p) {
if (p.isAnnotationPresent(OneToOne.class) && !p.getAnnotation(OneToOne.class).targetEntity().equals(Void.TYPE)) {
return true;
} else if (p.isAnnotationPresent(OneToMany.class) && !p.getAnnotation(OneToMany.class).targetEntity().equals(Void.TYPE)) {
return true;
} else if (p.isAnnotationPresent(ManyToOne.class) && !p.getAnnotation(ManyToOne.class).targetEntity().equals(Void.TYPE)) {
return true;
} else if (p.isAnnotationPresent(ManyToMany.class) && !p.getAnnotation(ManyToMany.class).targetEntity().equals(Void.TYPE)) {
return true;
} else if (p.isAnnotationPresent(Any.class)) {
return true;
} else if (p.isAnnotationPresent(ManyToAny.class)) {
if (!p.isCollection() && !p.isArray()) {
throw new AnnotationException("@ManyToAny used on a non collection non array property: " + p.getName());
} else {
return true;
}
} else if (p.isAnnotationPresent(Type.class)) {
return true;
} else {
return p.isAnnotationPresent(Target.class);
}
}
private static boolean mustBeSkipped(XProperty property) {
return property.isAnnotationPresent(Transient.class) || "net.sf.cglib.transform.impl.InterceptFieldCallback".equals(property.getType().getName()) || "org.hibernate.bytecode.internal.javassist.FieldHandler".equals(property.getType().getName());
}
}
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标签：propertyIterator,SpringDataJPA,AccessType,顺序,hibernate,org,import,DM,class 来源： https://www.cnblogs.com/hong-yf/p/15249436.html
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