BasicClasses.RelNode

Module BasicClasses :: Class RelNode

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Class RelNode

    object --+        
             |        
      BIObject --+    
                 |    
    object --+   |    
             |   |    
BIXMLWriteable --+    
                 |    
       FormulaNode --+
                     |
                    RelNode

A formula node which represents a relationship among its arguments. The arguments, formula nodes themselves, are in the instance variable arguments. The text binding entity of the predicate, if any, is in the instance variable entity.

Method Summary
	`__init__(self, oStack, parser, attrs, **args)`
	`computeXMLArgs(self)`
	`getText(self, tBinding, descend)`
	`isPredicate(self)` True.
Inherited from FormulaNode
integer	`addArgument(self, argument)` Add argument to the list of arguments of this formula node.
	`getEntities(self, recursive)` Return a list of all entities used as a text binding in this node and, if `recursive==True`, in the subtree rooted by this node.
	`isEntity(self)` Return `True` if the formula node represents a predicate (i.e.
	`nestedItemsPresent(self)` True if this formula node has arguments, that is, if it is not a leaf in the formula tree.
	`setEntity(self, entityId)` Resolve entityId into an `Entity` and set the entity as the formula node text binding entity.
	`writeXMLNestedItems(self, out, indent)`
Inherited from BIXMLWriteable
	`writeXML(self, out, indent, **kwArgs)` Outputs the complete XML representation of the given object.
	`writeXMLClose(self, out, indent)` Prints the closing tag of the object: </tag>.
	`writeXMLOpen(self, out, indent, closing)` Writes opening tag into the XML output.
	`XMLAttrs(self)` Computes the string representation of the object's attributes, which are included into the XML tag.
Inherited from object
	`__delattr__(...)` x.__delattr__('name') <==> del x.name
	`__getattribute__(...)` x.__getattribute__('name') <==> x.name
	`__hash__(x)` x.__hash__() <==> hash(x)
	`__reduce__(...)` helper for pickle
	`__reduce_ex__(...)` helper for pickle
	`__repr__(x)` x.__repr__() <==> repr(x)
	`__setattr__(...)` x.__setattr__('name', value) <==> x.name = value
	`__str__(x)` x.__str__() <==> str(x)
Inherited from type
	`__new__(T, S, ...)` T.__new__(S, ...) -> a new object with type S, a subtype of T

Instance Variable Summary
`OntologyClasses.Predicate`	`predicate`: A `Predicate` instance representing the predicate of the relationship.
Inherited from FormulaNode
list	`arguments`: The arguments (children) of this formula node.
`Entity`	`entity`: The `Entity` used as text binding for this formula node.

Class Variable Summary
`str`	`XMLTag` = `'relnode'`
Inherited from BIXMLWriteable
`list`	`persistentAttrs`: The list of attributes to be included in the XML output.

Method Details

isPredicate(self)

True.

Overrides:: BasicClasses.FormulaNode.isPredicate

Instance Variable Details

predicate

A Predicate instance representing the predicate of the relationship.

Type:: OntologyClasses.Predicate

Class Variable Details

XMLTag

Type:: str
Value:: 'relnode'

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