public static <T> List<ColumnModel> getColumnModelListForUpdate(
Configuration configuration,
Class<?> entityClass,
T entity,
boolean isMapUnderscoreToCamelCase,
Map<String, Object> parameterMap) {
MetaClass metaClass = MetaClass.forClass(entityClass, configuration.getReflectorFactory());
String[] readablePropertyNames = metaClass.getGetterNames();
List<ColumnModel> columnModelList = new ArrayList<ColumnModel>();
ColumnModel columnModel = null;
for (String propertyName : readablePropertyNames) {
Method getterMethod = findGetterMethod(propertyName, entityClass);
if (getterMethod == null) {
continue;
}
if (AnnotationUtils.findAnnotation(getterMethod, Transient.class) != null
|| AnnotationUtils.findAnnotation(getterMethod, CreatedDate.class) != null) {
continue;
}
columnModel = new ColumnModel();
try {
Invoker method = metaClass.getGetInvoker(propertyName);
try {
Object value = method.invoke(entity, null);
String columnName = getColumnName(propertyName, isMapUnderscoreToCamelCase);
// Handle PK
if (AnnotationUtils.findAnnotation(getterMethod, Id.class) != null) {
Assert.notNull(value, propertyName + " is required");
parameterMap.put(columnName, value);
continue;
}
// Handle the property that annotated by ${#link ModifiedDate}
if (AnnotationUtils.findAnnotation(getterMethod, ModifiedDate.class) != null) {
if (methodReturnTypeCheck(getterMethod, Date.class)) {
value = new Date();
}
}
if (value != null
|| AnnotationUtils.findAnnotation(getterMethod, NullableForUpdate.class) != null) {
// Handle the property that annotated by {#link Enumerated}
Enumerated enumrated = AnnotationUtils.findAnnotation(getterMethod, Enumerated.class);
if (enumrated != null) {
if (enumrated.value() == EnumType.ORDINAL) {
Class<?> returnType = getterMethod.getReturnType();
value =
Enum.valueOf(returnType.asSubclass(Enum.class), String.valueOf(value))
.ordinal();
}
}
// Handle the property that annotated by {#link Association}
if (AnnotationUtils.findAnnotation(getterMethod, Association.class) != null) {
Association association =
AnnotationUtils.findAnnotation(getterMethod, Association.class);
String joinColumn = association.joinColumn();
if (joinColumn == null || "".equals(joinColumn.trim())) {
columnName = columnName + "_id";
} else {
columnName = association.joinColumn();
}
Class<?> returnType = getterMethod.getReturnType();
MetaClass associationMetaClass =
MetaClass.forClass(returnType, configuration.getReflectorFactory());
Invoker m =
associationMetaClass.getGetInvoker(
"id"); // TODO, now just support the primary key that named "id"
value = m.invoke(value, null);
}
columnModel.setName(columnName);
columnModel.setValue(value);
columnModelList.add(columnModel);
}
} catch (Throwable t) {
throw ExceptionUtil.unwrapThrowable(t);
}
} catch (Throwable t) {
throw new ReflectionException(
"Could not get the value of property '"
+ propertyName
+ "' of '"
+ entityClass
+ "' Cause: "
+ t.toString(),
t);
}
}
return columnModelList;
}
public static <T> T populate(
Configuration configuration,
Class<?> entityClass,
T entity,
Map<String, Object> resultMap,
boolean isMapUnderscoreToCamelCase) {
MetaClass metaClass = MetaClass.forClass(entityClass, configuration.getReflectorFactory());
for (String key : resultMap.keySet()) {
String property = metaClass.findProperty(key, isMapUnderscoreToCamelCase);
if (property == null) {
property =
metaClass.findProperty(
key.replace("_id", ""),
isMapUnderscoreToCamelCase); // just for association entity property
if (property == null) {
property = getPropertyNameForAssociationEntity(entityClass, metaClass, key);
}
}
if (property != null && metaClass.hasSetter(property)) {
Object value = resultMap.get(key);
try {
Method getterMethod = findGetterMethod(property, entityClass);
// Handle the property that annotated by {#link Enumerated}.
Enumerated enumrated = AnnotationUtils.findAnnotation(getterMethod, Enumerated.class);
if (enumrated != null) {
Class<?> returnType = getterMethod.getReturnType();
if (enumrated.value() == EnumType.STRING) {
value = Enum.valueOf(returnType.asSubclass(Enum.class), String.valueOf(value));
} else {
value = returnType.asSubclass(Enum.class).getEnumConstants()[(int) value];
}
}
// Handler the property that annotated by {#link Association}
Association association = AnnotationUtils.findAnnotation(getterMethod, Association.class);
if (association != null) {
Class<?> returnType = getterMethod.getReturnType();
MetaClass associationMetaClass =
MetaClass.forClass(returnType, configuration.getReflectorFactory());
Invoker m = associationMetaClass.getSetInvoker("id");
Object associationEntity = returnType.newInstance();
Object[] params = {value};
m.invoke(associationEntity, params);
value = associationEntity;
}
Invoker method = metaClass.getSetInvoker(property);
Object[] params = {value};
try {
method.invoke(entity, params);
} catch (Throwable t) {
throw ExceptionUtil.unwrapThrowable(t);
}
} catch (Throwable t) {
throw new ReflectionException(
"Could not set property '"
+ property
+ "' of '"
+ entityClass
+ "' with value '"
+ value
+ "' Cause: "
+ t.toString(),
t);
}
}
}
return entity;
}