added a method to decode Base64 encoding
created a class RDFOBject
created constructors for RDFObject
added a toString method to RDFObject
modified example
created a class for RDFObjectProperty
added a method to get sparql query to retrieve properties of an object
added a class for RDFObjectPropertyValue
storing properties in RDFObjectProperty
adding properties to RDFObject
adding additional information for language nodes
storing property values
created a method to return variable name of a class
modified method to find data uri in SPARQLHandler
created a common method to get variable names
created an overloaded method for CommonHelper.getVariableName
started writing methods to return table creation scripts for classes
creating table attribute definitions for properties
creating foreign key references for table definitions
generating tables for foreign keys