Package gavo :: Package grammars :: Module common :: Class NullGrammar

Class NullGrammar

                   object --+                
                            |                
 base.structure.StructureBase --+            
                                |            
                   object --+   |            
                            |   |            
           base.common.Parser --+            
                                |            
base.structure.ParseableStructure --+        
                                    |        
             base.structure.Structure --+    
                                        |    
                   object --+           |    
                            |           |    
     base.macros.MacroPackage --+       |    
                                |       |    
   base.macros.StandardMacroMixin --+   |    
                                    |   |    
                    GrammarMacroMixin --+    
                                        |    
                                  Grammar --+
                                            |
                                           NullGrammar

A grammar that never returns any rows.

Nested Classes

Inherited from Grammar: rowIterator

Inherited from base.structure.StructureBase: __metaclass__

Instance Methods

clearProperty(self, name)

source code

getFullId(self)

source code

getProperty(self, name, default=<Undefined>)

source code

hasProperty(self, name)

source code

setProperty(self, name, value)

source code

Inherited from Grammar: getSourceFields, parse

Inherited from base.structure.Structure: __provides__, callCompletedCallbacks, completeElement, finishElement, onElementComplete, validate

Inherited from base.structure.ParseableStructure: __init__, end_, feed, feedFrom, feedObject, getAttribute, iterEvents, start_, value_

Inherited from base.structure.StructureBase: __providedBy__, adopt, breakCircles, change, copy, getAttributes, getCopyableAttributes, getSourcePosition, iterChildren, setPosition

Inherited from base.common.Parser: feedEvent

Inherited from GrammarMacroMixin: macro_colNames, macro_dlMetaURI, macro_fullDLURL, macro_inputRelativePath, macro_inputSize, macro_lastSourceElements, macro_property, macro_rootlessPath, macro_rowsProcessed, macro_sourceDate, macro_splitPreviewPath, macro_srcstem, macro_standardPreviewPath

Inherited from base.macros.StandardMacroMixin: macro_RSTservicelink, macro_RSTtable, macro_decapitalize, macro_getConfig, macro_internallink, macro_magicEmpty, macro_metaSeq, macro_metaString, macro_rdId, macro_rdIdDotted, macro_schema, macro_test, macro_today, macro_upper, macro_urlquote

Inherited from base.macros.MacroPackage: execMacro, expand, getExpander, listMacros, macro_quote, macro_reSub, macro_sql_standardPubDID, macro_sqlquote

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

Class Methods
Inherited from `base.structure.StructureBase`: `fromStructure`

Class Variables

name_ = 'nullGrammar'
a sentinel for all kinds of undefined values.

Inherited from Grammar: attrSeq, isDispatching, managedAttrs

Inherited from base.structure.Structure: __implemented__

Inherited from base.structure.StructureBase: completedCallbacks

Properties
	rd
Inherited from `object`: `__class__`

Method Details

Property Details

rd

Get Method:: unreachable._getRD(self)