Class: Lafcadio::ClassDefinitionXmlParser

Inherits:
Object
  • Object
show all
Defined in:
lib/lafcadio/domain.rb

Overview

:nodoc: all

Defined Under Namespace

Classes: FieldAttribute, InvalidDataError

Instance Method Summary collapse

Constructor Details

#initialize(domainClass, xml) ⇒ ClassDefinitionXmlParser

Returns a new instance of ClassDefinitionXmlParser.



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# File 'lib/lafcadio/domain.rb', line 60

def initialize( domainClass, xml )
	@domainClass = domainClass
	@xmlDocRoot = REXML::Document.new( xml ).root
	@namesProcessed = {}
end

Instance Method Details

#get_class_field(fieldElt) ⇒ Object 



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# File 'lib/lafcadio/domain.rb', line 66

def get_class_field( fieldElt )
	className = fieldElt.attributes['class'].to_s
	name = fieldElt.attributes['name']
	begin
		fieldClass = Class.getClass( 'Lafcadio::' + className )
		register_name( name )
		field = fieldClass.instantiateFromXml( @domainClass, fieldElt )
		possibleFieldAttributes.each { |fieldAttr|
			fieldAttr.maybeSetFieldAttr( field, fieldElt )
		}
	rescue MissingError
		msg = "Couldn't find field class '#{ className }' for field " +
		      "'#{ name }'"
		raise( MissingError, msg, caller )
	end
	field
end

#getClassFields ⇒ Object 



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# File 'lib/lafcadio/domain.rb', line 84

def getClassFields
	namesProcessed = {}
	fields = []
	@xmlDocRoot.elements.each('field') { |fieldElt|
		fields << get_class_field( fieldElt )
	}
	fields
end

#possibleFieldAttributes ⇒ Object 



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# File 'lib/lafcadio/domain.rb', line 106

def possibleFieldAttributes
	fieldAttr = []
	fieldAttr << FieldAttribute.new( 'size', FieldAttribute::INTEGER )
	fieldAttr << FieldAttribute.new( 'unique', FieldAttribute::BOOLEAN )
	fieldAttr << FieldAttribute.new( 'notNull', FieldAttribute::BOOLEAN )
	fieldAttr << FieldAttribute.new( 'enumType', FieldAttribute::ENUM,
																	 BooleanField )
	fieldAttr << FieldAttribute.new( 'enums', FieldAttribute::HASH )
	fieldAttr << FieldAttribute.new( 'range', FieldAttribute::ENUM,
																	 DateField )
	fieldAttr << FieldAttribute.new( 'large', FieldAttribute::BOOLEAN )
end

#register_name(name) ⇒ Object

Raises:



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# File 'lib/lafcadio/domain.rb', line 93

def register_name( name )
	raise InvalidDataError if @namesProcessed[name]
	@namesProcessed[name] = true
end

#sqlPrimaryKeyName ⇒ Object 



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# File 'lib/lafcadio/domain.rb', line 98

def sqlPrimaryKeyName
	@xmlDocRoot.attributes['sqlPrimaryKeyName']
end

#tableName ⇒ Object 



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# File 'lib/lafcadio/domain.rb', line 102

def tableName
	@xmlDocRoot.attributes['tableName']
end