Package jpa.tools.swing

Class MetamodelHelper

java.lang.Object

jpa.tools.swing.MetamodelHelper

public class MetamodelHelper
extends java.lang.Object

Static utility for analyzing persistent metadata model using JPA 2.0.

Author:

Pinaki Poddar

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MetamodelHelper.AttributeComparator	Compares attribute by their qualification.
static class	MetamodelHelper.EntityComparator	Compares EntityType by their dependency of derived targets.

Field Summary

Fields

Modifier and Type	Field	Description
static int	ATTR_BASIC
static int	ATTR_ID
static int	ATTR_PLURAL_RELATION
static int	ATTR_SINGULAR_RELATION
static int	ATTR_VERSION
static java.awt.Color	DARK_GREEN
static java.awt.Color	KHAKI
static java.awt.Color	MIDNIGHT_BLUE

Constructor Summary

Constructors

Constructor	Description
MetamodelHelper()

Method Summary

Modifier and Type	Method	Description
static <T> jakarta.persistence.metamodel.EntityType<?>	derivedTarget(jakarta.persistence.metamodel.EntityType<T> type)	Finds the derived target of the given type, if any.
static <T> java.util.List<jakarta.persistence.metamodel.Attribute<? super T,?>>	getAttributes(jakarta.persistence.metamodel.EntityType<T> type)
static int	getAttributeType(jakarta.persistence.metamodel.Attribute<?,?> a)
static java.lang.Integer	getAttributeTypeCode(jakarta.persistence.metamodel.Attribute<?,?> attr)
static java.awt.Color	getColor(jakarta.persistence.metamodel.Attribute.PersistentAttributeType type)
static java.awt.Color	getColor(jakarta.persistence.metamodel.Attribute<?,?> attr)
static java.lang.String	getDisplayName(jakarta.persistence.metamodel.Attribute<?,?> attr)
static java.lang.String	getDisplayName(jakarta.persistence.metamodel.EntityType<?> type)	Gets the displayed name of a given entity type.
static java.lang.String	getDisplayName(jakarta.persistence.metamodel.Type<?> type)
static java.lang.String	getDisplayName(java.lang.Class<?> cls)
static <T> java.util.Set<jakarta.persistence.metamodel.SingularAttribute<? super T,?>>	getIdAttributes(jakarta.persistence.metamodel.EntityType<T> type)
static jakarta.persistence.metamodel.EntityType<?>	getParentType(jakarta.persistence.metamodel.SingularAttribute<?,?> id)
static java.lang.Object	getValue(jakarta.persistence.metamodel.Attribute<?,?> attr, java.lang.Object instance)	Gets the value of the given persistent attribute for the given instance.
static boolean	isId(jakarta.persistence.metamodel.Attribute<?,?> a)
static boolean	isVersion(jakarta.persistence.metamodel.Attribute<?,?> a)

Methods inherited from class java.lang.Object

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

Field Detail

ATTR_ID

public static final int ATTR_ID

See Also:

Constant Field Values

ATTR_VERSION

public static final int ATTR_VERSION

See Also:

Constant Field Values

ATTR_BASIC

public static final int ATTR_BASIC

See Also:

Constant Field Values

ATTR_SINGULAR_RELATION

public static final int ATTR_SINGULAR_RELATION

See Also:

Constant Field Values

ATTR_PLURAL_RELATION

public static final int ATTR_PLURAL_RELATION

See Also:

Constant Field Values

MIDNIGHT_BLUE

public static final java.awt.Color MIDNIGHT_BLUE

DARK_GREEN

public static final java.awt.Color DARK_GREEN

KHAKI

public static final java.awt.Color KHAKI

Constructor Detail

MetamodelHelper

public MetamodelHelper()

Method Detail

getDisplayName

public static java.lang.String getDisplayName(jakarta.persistence.metamodel.Type<?> type)

getDisplayName

public static java.lang.String getDisplayName(jakarta.persistence.metamodel.EntityType<?> type)

Gets the displayed name of a given entity type.

getDisplayName

public static java.lang.String getDisplayName(java.lang.Class<?> cls)

getDisplayName

public static java.lang.String getDisplayName(jakarta.persistence.metamodel.Attribute<?,?> attr)

getAttributes

public static <T> java.util.List<jakarta.persistence.metamodel.Attribute<? super T,?>> getAttributes(jakarta.persistence.metamodel.EntityType<T> type)

getAttributeType

public static int getAttributeType(jakarta.persistence.metamodel.Attribute<?,?> a)

getIdAttributes

public static <T> java.util.Set<jakarta.persistence.metamodel.SingularAttribute<? super T,?>> getIdAttributes(jakarta.persistence.metamodel.EntityType<T> type)

derivedTarget

public static <T> jakarta.persistence.metamodel.EntityType<?> derivedTarget(jakarta.persistence.metamodel.EntityType<T> type)

Finds the derived target of the given type, if any. Otherwise null.

getParentType

public static jakarta.persistence.metamodel.EntityType<?> getParentType(jakarta.persistence.metamodel.SingularAttribute<?,?> id)

isId

public static boolean isId(jakarta.persistence.metamodel.Attribute<?,?> a)

isVersion

public static boolean isVersion(jakarta.persistence.metamodel.Attribute<?,?> a)

getColor

public static java.awt.Color getColor(jakarta.persistence.metamodel.Attribute<?,?> attr)

getColor

public static java.awt.Color getColor(jakarta.persistence.metamodel.Attribute.PersistentAttributeType type)

getAttributeTypeCode

public static java.lang.Integer getAttributeTypeCode(jakarta.persistence.metamodel.Attribute<?,?> attr)

getValue

public static java.lang.Object getValue(jakarta.persistence.metamodel.Attribute<?,?> attr,
                                        java.lang.Object instance)

Gets the value of the given persistent attribute for the given instance.