cb.parser
Class ObjectFactory

java.lang.Object
  |
  +--cb.parser.ObjectFactory

public class ObjectFactory

extends java.lang.Object

This factory is used by the parser to create PetalNode objects . Subclass it and overwrite the "instance" if you don't like the way this is done.

Version:

$Id: ObjectFactory.java,v 1.16 2001/07/09 07:48:52 dahm Exp $

Author:

M. Dahm

Constructor Summary

protected

ObjectFactory()

Method Summary

BooleanLiteral	createBoolean(java.lang.String value)
FloatLiteral	createFloat(java.lang.String value)
IntegerLiteral	createInteger(java.lang.String value)
List	createList(java.lang.String name)
Location	createLocation(java.lang.String value1, java.lang.String value2)
PetalObject	createObject(PetalNode parent, java.lang.String id, java.util.ArrayList params, java.lang.String tag) Create PetalObject like (object Class "Professor" ...).
StringLiteral	createString(java.lang.String value, boolean multi) There are two kinds of string encodings in Rose: Either the usual "foo bar", or a multi line string where each line starts with a |.
Tag	createTag(java.lang.String ref)
Tuple	createTuple(java.lang.String first, java.lang.String second)
Value	createValue(java.lang.String name, StringLiteral value)
static ObjectFactory	getInstance()
static void	setInstance(ObjectFactory o)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectFactory

protected ObjectFactory()

Method Detail

getInstance

public static ObjectFactory getInstance()

setInstance

public static void setInstance(ObjectFactory o)

createObject

public PetalObject createObject(PetalNode parent,
                                java.lang.String id,
                                java.util.ArrayList params,
                                java.lang.String tag)

Create PetalObject like (object Class "Professor" ...). In case there is no corresponding class (yet), return SimpleObject, or SimpleViewObject respectively.

Parameters:

parent - the parent of the object in the tree, either another PetalObject or the root node (PetalFile)

id - the Rose identifier for the node like "Class_Category" which is mapped to a name like "ClassCategory"

params - the parameter list for the object

tag - some objects have a "tag", like @12

createList

public List createList(java.lang.String name)

Returns:

list like (list RoleViews ...) with given name

createValue

public Value createValue(java.lang.String name,
                         StringLiteral value)

Returns:

value literal like (value cardinality "1..n")

createTuple

public Tuple createTuple(java.lang.String first,
                         java.lang.String second)

Returns:

tuple literal like ("DataBaseSet" 800)

createLocation

public Location createLocation(java.lang.String value1,
                               java.lang.String value2)

Returns:

location literal which is a tuple of integers like (1520, 96)

createString

public StringLiteral createString(java.lang.String value,
                                  boolean multi)

There are two kinds of string encodings in Rose: Either the usual "foo bar", or a multi line string where each line starts with a |.

Returns:

string literal which may contain multiple lines

createBoolean

public BooleanLiteral createBoolean(java.lang.String value)

Returns:

new BooleanLiteral for either "TRUE" or "FALSE"

createInteger

public IntegerLiteral createInteger(java.lang.String value)

Returns:

new IntegerLiteral

createFloat

public FloatLiteral createFloat(java.lang.String value)

Returns:

new FloatLiteral (which contains in fact a double)

createTag

public Tag createTag(java.lang.String ref)

Returns:

new tag attached to view objects