Package gavo :: Package adql :: Module ufunctions :: Class UserFunction

Class UserFunction

             object --+                
                      |                
utils.autonode.AutoNode --+            
                          |            
             nodes.ADQLNode --+        
                              |        
          nodes.FieldInfoedNode --+    
                                  |    
                 nodes.FunctionNode --+
                                      |
                                     UserFunction

A node processing user defined functions.

See the userFunction docstring for how ADQL user defined functions are defined.

Nested Classes
Inherited from `utils.autonode.AutoNode`: `__metaclass__`

Instance Methods

flatten(self)
returns a string representation of the text content of the tree.

source code

addFieldInfo(self, context)

source code

__init__(self, args=(), funName=None)
x.__init__(...) initializes x; see help(type(x)) for signature source code

Inherited from nodes.FieldInfoedNode: change

Inherited from nodes.ADQLNode: __repr__, asTree, getFlattenedChildren, iterTree

Inherited from utils.autonode.AutoNode: iterAttributes, iterChildren, iterNodeChildren, iterNodes

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Methods

Inherited from nodes.ADQLNode: fromParseResult

Inherited from utils.autonode.AutoNode: cloneFrom

Class Variables
	type = `'userDefinedFunction'` hash(x)
Inherited from `nodes.FieldInfoedNode`: `fieldInfo`

Properties
Inherited from `object`: `__class__`

Method Details

flatten(self)

source code

returns a string representation of the text content of the tree.

This default implementation will only work if you returned all parsed elements as children. This, in turn, is something you only want to do if you are sure that the node is question will not be morphed.

Otherwise, override it to create an SQL fragment out of the parsed attributes.

Overrides: nodes.ADQLNode.flatten: (inherited documentation)

addFieldInfo(self, context)

source code

Overrides: nodes.FieldInfoedNode.addFieldInfo

init(self, args=`()`, funName=None)
(Constructor)

source code

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__: (inherited documentation)

Class UserFunction

flatten(self)

addFieldInfo(self, context)

__init__(self, args=(), funName=None) (Constructor)

init(self, args=`()`, funName=None)
(Constructor)