aspoev.interpreter.base
Class TypeReferenceElement

java.lang.Object
  aspoev.interpreter.base.Element
      aspoev.interpreter.base.StatementElement
          aspoev.interpreter.base.RValuedElement
              aspoev.interpreter.base.TypeReferenceElement

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Comparable, aspoev.Executable, pJ.jasmine.PRI, java.io.Serializable

Direct Known Subclasses:

CompoundTypeReferenceElement

public class TypeReferenceElement

extends RValuedElement

implements java.lang.Comparable, pJ.jasmine.PRI

A reference to a type in Vejal. The reference consists merely of a namespace, a name, and version, that serves as a pointer of sorts in the Interpreter to the type's declaration. The actual type referenced by any instance of this class is a ClassDeclarationElement. The type referenced by an instance of this class can be retrieved by calling 'lookUpClass(TypeReferenceElement)' on the Interpreter (aspoev.interpreter.Interpreter), and passing this object as the argument.

See Also:

Serialized Form

Field Summary

static TypeReferenceElement	BINDING
static TypeReferenceElement	BOOLEAN
static TypeReferenceElement	DOUBLE
static TypeReferenceElement	JAVA_OBJECT
static TypeReferenceElement	LIST
static TypeReferenceElement	MAP
protected java.lang.String	nameSpace
static TypeReferenceElement	SET
static TypeReferenceElement	STRING
protected java.lang.String	typeName
protected VersionObject	version
static TypeReferenceElement	VOID

Fields inherited from class aspoev.interpreter.base.Element

parent

Fields inherited from interface pJ.jasmine.PRI

DELETECHANGE, MODIFYCHANGE, NOCHANGE

Constructor Summary

protected	TypeReferenceElement(java.lang.String name)
protected	TypeReferenceElement(java.lang.String nameSpace, java.lang.String name)
protected	TypeReferenceElement(java.lang.String nameSpace, java.lang.String typeName, VersionObject version)
protected	TypeReferenceElement(java.lang.String typeName, VersionObject version)

Method Summary

boolean	assignableFrom(TypeReferenceElement otherType) This is an aspect binding point.
java.lang.Object	clone()
int	compareTo(java.lang.Object other) Returns -1 if 'this' type is a lower version than 'other', 0 if the two types are equal, and 1 if 'this' tye is a higher version than 'other'.
static TypeReferenceElement	create(java.lang.String name) Creates a type with the given name.
static TypeReferenceElement	create(java.lang.String nameSpace, java.lang.String name) Creates a type with the given name space and name.
static TypeReferenceElement	create(java.lang.String nameSpace, java.lang.String name, VersionObject version) Creates a type with the given name space, name, and version.
static TypeReferenceElement	create(java.lang.String name, VersionObject version) Creates a type with the given name and version.
boolean	equals(java.lang.Object other)
boolean	equals(TypeReferenceElement other) Evaluates the equality of two types.
java.util.Collection	getChildrenByType(java.lang.Class childClass)
ClassDeclarationElement	getClassDeclaration() Returns the class definition associated with this type.
java.lang.String	getCodeString()
pJ.jasmine.ListOfObject	getSubclasses() Returns a list of the types that derive directly from this type.
boolean	hasCommonBaseType(TypeReferenceElement other)
int	hashCode()
boolean	isJavaType() Returns true if this object is not a primitive nor a Vejal object, but rather a POJO.
boolean	isPrimitive() Returns true if this object is a String, Boolean, or Double.
TypeReferenceElement	newVersion()
static TypeReferenceElement	newVersion(TypeReferenceElement baseVersion) Creates a new version of the type, incrementing the version object.
java.lang.String	toString()
static TypeReferenceElement	typeObject(java.lang.Object object)

Methods inherited from class aspoev.interpreter.base.StatementElement

executeElement

Methods inherited from class aspoev.interpreter.base.Element

execute, getRValue, persist

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

VOID

public static final TypeReferenceElement VOID

DOUBLE

public static final TypeReferenceElement DOUBLE

JAVA_OBJECT

public static final TypeReferenceElement JAVA_OBJECT

STRING

public static final TypeReferenceElement STRING

BOOLEAN

public static final TypeReferenceElement BOOLEAN

LIST

public static final TypeReferenceElement LIST

MAP

public static final TypeReferenceElement MAP

SET

public static final TypeReferenceElement SET

BINDING

public static final TypeReferenceElement BINDING

nameSpace

protected java.lang.String nameSpace

typeName

protected java.lang.String typeName

version

protected VersionObject version

Constructor Detail

TypeReferenceElement

protected TypeReferenceElement(java.lang.String nameSpace,
                               java.lang.String typeName,
                               VersionObject version)

TypeReferenceElement

protected TypeReferenceElement(java.lang.String typeName,
                               VersionObject version)

TypeReferenceElement

protected TypeReferenceElement(java.lang.String nameSpace,
                               java.lang.String name)

TypeReferenceElement

protected TypeReferenceElement(java.lang.String name)

Method Detail

clone

public java.lang.Object clone()

Specified by:

clone in class Element

assignableFrom

public boolean assignableFrom(TypeReferenceElement otherType)

This is an aspect binding point. While some schema managers will allow different versions of the same type to be assigned to each other, some may not. Default implementation simply looks for the argument type in this type's super types.

compareTo

public int compareTo(java.lang.Object other)

Returns -1 if 'this' type is a lower version than 'other', 0 if the two types are equal, and 1 if 'this' tye is a higher version than 'other'.

Specified by:

compareTo in interface java.lang.Comparable

create

public static TypeReferenceElement create(java.lang.String name,
                                          VersionObject version)

Creates a type with the given name and version. This method monitors basic type creation to return common representations of primitives, collection objects, etc.

create

public static TypeReferenceElement create(java.lang.String name)

Creates a type with the given name.

create

public static TypeReferenceElement create(java.lang.String nameSpace,
                                          java.lang.String name)

Creates a type with the given name space and name.

create

public static TypeReferenceElement create(java.lang.String nameSpace,
                                          java.lang.String name,
                                          VersionObject version)

Creates a type with the given name space, name, and version.

getClassDeclaration

public ClassDeclarationElement getClassDeclaration()

Returns the class definition associated with this type.

getSubclasses

public pJ.jasmine.ListOfObject getSubclasses()

Returns a list of the types that derive directly from this type.

equals

public boolean equals(TypeReferenceElement other)

Evaluates the equality of two types. Schema managing objects may want to bind here to change the concept of type equality with respect to versioning.

equals

public boolean equals(java.lang.Object other)

hasCommonBaseType

public boolean hasCommonBaseType(TypeReferenceElement other)

hashCode

public int hashCode()

newVersion

public static TypeReferenceElement newVersion(TypeReferenceElement baseVersion)

Creates a new version of the type, incrementing the version object.

newVersion

public TypeReferenceElement newVersion()

getChildrenByType

public java.util.Collection getChildrenByType(java.lang.Class childClass)

Specified by:

getChildrenByType in class Element

getCodeString

public java.lang.String getCodeString()

Specified by:

getCodeString in class Element

toString

public java.lang.String toString()

Overrides:

toString in class Element

isPrimitive

public boolean isPrimitive()

Returns true if this object is a String, Boolean, or Double.

isJavaType

public boolean isJavaType()

Returns true if this object is not a primitive nor a Vejal object, but rather a POJO.

typeObject

public static TypeReferenceElement typeObject(java.lang.Object object)