org.apache.openjpa.persistence.jest
Class MetamodelHelper

java.lang.Object
  org.apache.openjpa.persistence.jest.MetamodelHelper

public class MetamodelHelper
extends Object

Author:

Pinaki Poddar

Nested Class Summary

static class	MetamodelHelper.AttributeCategory Attribute Category makes a finer distinction over PersistentAttributeType declared in Attribute.PersistentAttributeType such as id, version, lob or enum.
static class	MetamodelHelper.AttributeComparator Compares attribute by their category and within the same category by name.

Field Summary

static char	DASH
static char	UNDERSCORE

Constructor Summary

MetamodelHelper()

Method Summary

static MetamodelHelper.AttributeCategory	getAttributeCategory(Attribute<?,?> attr) Gets a ordinal value of enumerated persistent attribute category.
static List<Attribute<?,?>>	getAttributesInOrder(Class<?> cls, Metamodel model)
static List<Attribute<?,?>>	getAttributesInOrder(ClassMetaData meta, Metamodel model)
static List<Attribute<?,?>>	getAttributesInOrder(ManagedType<?> type) Gets the attributes of the given type in defined order.
static String	getAttributeTypeName(Attribute<?,?> attr) Gets name of the attribute type.
static String	getTagByAttributeType(Attribute<?,?> attr)
static boolean	isEnum(Attribute<?,?> a)
static boolean	isId(Attribute<?,?> a)
static boolean	isLob(Attribute<?,?> a)
static boolean	isVersion(Attribute<?,?> a)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DASH

public static final char DASH

See Also:

Constant Field Values

UNDERSCORE

public static final char UNDERSCORE

See Also:

Constant Field Values

Constructor Detail

MetamodelHelper

public MetamodelHelper()

Method Detail

getAttributesInOrder

public static List<Attribute<?,?>> getAttributesInOrder(Class<?> cls,
                                                        Metamodel model)

getAttributesInOrder

public static List<Attribute<?,?>> getAttributesInOrder(ClassMetaData meta,
                                                        Metamodel model)

getAttributesInOrder

public static List<Attribute<?,?>> getAttributesInOrder(ManagedType<?> type)

Gets the attributes of the given type in defined order.

Parameters:

type -

Returns:

isId

public static boolean isId(Attribute<?,?> a)

isVersion

public static boolean isVersion(Attribute<?,?> a)

isEnum

public static boolean isEnum(Attribute<?,?> a)

isLob

public static boolean isLob(Attribute<?,?> a)

getAttributeCategory

public static MetamodelHelper.AttributeCategory getAttributeCategory(Attribute<?,?> attr)

Gets a ordinal value of enumerated persistent attribute category.

Parameters:

attr -

Returns:

getTagByAttributeType

public static String getTagByAttributeType(Attribute<?,?> attr)

getAttributeTypeName

public static String getAttributeTypeName(Attribute<?,?> attr)

Gets name of the attribute type. For collection and map type attribute, the name is appended with generic type argument names.

Parameters:

attr -

Returns: