org.eclipse.persistence.jaxb.javamodel
Class Helper

java.lang.Object
  org.eclipse.persistence.jaxb.javamodel.Helper

public class Helper
extends java.lang.Object

INTERNAL:

Purpose:To provide helper methods and constants to assist in integrating TopLink JAXB 2.0 Generation with the JDEV JOT APIs.

Responsibilities:

• Make available a map of JOT - XML type pairs
• Redirect method calls to the current JavaModel implementation as required
• Provide methods for accessing generics, annotations, etc. on a given implementaiton's classes
• Provide a dynamic proxy instance for a given JavaAnnotation in the JOT implementation (for reflection a Java SDK annotation is returned)

See Also:

org.eclipse.persistence.jaxb20.javamodel.JavaModel, org.eclipse.persistence.jaxb20.javamodel.jot.AnnotationProxy

Since:

Oracle TopLink 11.1.1.0.0

Field Summary

static java.lang.String	ABYTE
static java.lang.String	APBYTE
static java.lang.String	BIGDECIMAL
static java.lang.String	BIGINTEGER
static java.lang.String	BOOLEAN
static java.lang.String	BYTE
static java.lang.String	CALENDAR
static java.lang.String	DOUBLE
static java.lang.String	DURATION
static java.lang.String	FLOAT
static java.lang.String	GREGORIAN_CALENDAR
static java.lang.String	INTEGER
protected JavaModel	jModel
protected java.lang.ClassLoader	loader
static java.lang.String	LONG
static java.lang.String	PBOOLEAN
static java.lang.String	PBYTE
static java.lang.String	PDOUBLE
static java.lang.String	PFLOAT
static java.lang.String	PINT
static java.lang.String	PLONG
static java.lang.String	PSHORT
static java.lang.String	QNAME_CLASS
static java.lang.String	SHORT
static java.lang.String	STRING
static java.lang.String	UTIL_DATE
static java.lang.String	XMLGREGORIANCALENDAR

Constructor Summary

Helper(JavaModel model)
INTERNAL: This is the preferred constructor.

Method Summary

java.lang.annotation.Annotation	getAnnotation(JavaHasAnnotations element, java.lang.Class annotationClass) Returns a either a dynamic proxy instance that allows an element to be treated as an annotation (for JOT), or a Java annotation (for Reflection), or null if the specified annotation does not exist.
java.lang.ClassLoader	getClassLoader()
JavaClass	getGenericReturnType(JavaMethod meth) Return a given method's generic return type as a JavaClass.
JavaClass	getGenericType(JavaField field) Return a given field's generic type.
JavaClass	getJavaClass(java.lang.Class javaClass) Return a JavaClass instance created based the provided class.
JavaClass	getJavaClass(java.lang.String javaClassName) Return a JavaClass instance created based on fully qualified class name.
JavaClass	getType(JavaField field) Returns a JavaClass instance wrapping the provided field's resolved type.
java.util.HashMap	getXMLToJavaTypeMap() Return a map of default Java types to XML types.
boolean	isAnnotationPresent(JavaHasAnnotations element, java.lang.Class annotationClass) Indicates if element contains a given annotation.
boolean	isBuiltInJavaType(JavaClass jClass) Indicates if the javaType map contains a key equal to the provided JavaClass' raw name.
void	setClassLoader(java.lang.ClassLoader loader)
void	setJavaModel(JavaModel model)

Methods inherited from class java.lang.Object

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

Field Detail

loader

protected java.lang.ClassLoader loader

jModel

protected JavaModel jModel

APBYTE

public static final java.lang.String APBYTE

See Also:

Constant Field Values

BIGDECIMAL

public static final java.lang.String BIGDECIMAL

See Also:

Constant Field Values

BIGINTEGER

public static final java.lang.String BIGINTEGER

See Also:

Constant Field Values

PBOOLEAN

public static final java.lang.String PBOOLEAN

See Also:

Constant Field Values

PBYTE

public static final java.lang.String PBYTE

See Also:

Constant Field Values

CALENDAR

public static final java.lang.String CALENDAR

See Also:

Constant Field Values

PDOUBLE

public static final java.lang.String PDOUBLE

See Also:

Constant Field Values

PFLOAT

public static final java.lang.String PFLOAT

See Also:

Constant Field Values

PINT

public static final java.lang.String PINT

See Also:

Constant Field Values

PLONG

public static final java.lang.String PLONG

See Also:

Constant Field Values

PSHORT

public static final java.lang.String PSHORT

See Also:

Constant Field Values

QNAME_CLASS

public static final java.lang.String QNAME_CLASS

See Also:

Constant Field Values

STRING

public static final java.lang.String STRING

See Also:

Constant Field Values

ABYTE

public static final java.lang.String ABYTE

See Also:

Constant Field Values

BOOLEAN

public static final java.lang.String BOOLEAN

See Also:

Constant Field Values

BYTE

public static final java.lang.String BYTE

See Also:

Constant Field Values

GREGORIAN_CALENDAR

public static final java.lang.String GREGORIAN_CALENDAR

See Also:

Constant Field Values

DOUBLE

public static final java.lang.String DOUBLE

See Also:

Constant Field Values

FLOAT

public static final java.lang.String FLOAT

See Also:

Constant Field Values

INTEGER

public static final java.lang.String INTEGER

See Also:

Constant Field Values

LONG

public static final java.lang.String LONG

See Also:

Constant Field Values

SHORT

public static final java.lang.String SHORT

See Also:

Constant Field Values

UTIL_DATE

public static final java.lang.String UTIL_DATE

See Also:

Constant Field Values

DURATION

public static final java.lang.String DURATION

See Also:

Constant Field Values

XMLGREGORIANCALENDAR

public static final java.lang.String XMLGREGORIANCALENDAR

See Also:

Constant Field Values

Constructor Detail

Helper

public Helper(JavaModel model)

INTERNAL: This is the preferred constructor. This constructor builds the map of XML-Java type pairs, and sets the JavaModel and ClassLoader.

Parameters:

model -

Method Detail

getGenericType

public JavaClass getGenericType(JavaField field)

Return a given field's generic type.

Parameters:

field -

Returns:

getGenericReturnType

public JavaClass getGenericReturnType(JavaMethod meth)

Return a given method's generic return type as a JavaClass.

Parameters:

meth -

Returns:

getJavaClass

public JavaClass getJavaClass(java.lang.Class javaClass)

Return a JavaClass instance created based the provided class. This assumes that the provided class exists on the classpath - null is returned otherwise.

Parameters:

javaClass -

Returns:

getJavaClass

public JavaClass getJavaClass(java.lang.String javaClassName)

Return a JavaClass instance created based on fully qualified class name. This assumes that a class with the provided name exists on the classpath - null is returned otherwise.

Parameters:

javaClassName -

Returns:

getXMLToJavaTypeMap

public java.util.HashMap getXMLToJavaTypeMap()

Return a map of default Java types to XML types.

Returns:

getAnnotation

public java.lang.annotation.Annotation getAnnotation(JavaHasAnnotations element,
                                                     java.lang.Class annotationClass)

Returns a either a dynamic proxy instance that allows an element to be treated as an annotation (for JOT), or a Java annotation (for Reflection), or null if the specified annotation does not exist. Intended to be used in conjunction with isAnnotationPresent.

Parameters:

element -

annotationClass -

Returns:

See Also:

isAnnotationPresent

getType

public JavaClass getType(JavaField field)

Returns a JavaClass instance wrapping the provided field's resolved type.

Parameters:

field -

Returns:

isAnnotationPresent

public boolean isAnnotationPresent(JavaHasAnnotations element,
                                   java.lang.Class annotationClass)

Indicates if element contains a given annotation.

Parameters:

element -

annotationClass -

Returns:

isBuiltInJavaType

public boolean isBuiltInJavaType(JavaClass jClass)

Indicates if the javaType map contains a key equal to the provided JavaClass' raw name.

Parameters:

jClass -

Returns:

setClassLoader

public void setClassLoader(java.lang.ClassLoader loader)

setJavaModel

public void setJavaModel(JavaModel model)

getClassLoader

public java.lang.ClassLoader getClassLoader()