Class: Norikra::Query::ASTStreamNode

Inherits:
ASTNode
  • Object
show all
Defined in:
lib/norikra/query/ast.rb

Overview

streamExpression, subSelectFilterExpr

Direct Known Subclasses

ASTStreamEventNode, ASTStreamPatternNode

Instance Attribute Summary

Attributes inherited from ASTNode

#children, #name, #tree

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ASTNode

#child, #find, #initialize, #listup, #to_a

Constructor Details

This class inherits a constructor from Norikra::Query::ASTNode

Class Method Details

.generate(name, children, tree) ⇒ Object 



1098
1099
1100
1101
1102
1103
1104
1105
1106
 
# File 'lib/norikra/query/ast.rb', line 1098

def self.generate(name, children, tree)
  if children.first.name == 'eventFilterExpression'
    ASTStreamEventNode.new(name, children, tree)
  elsif children.first.name == 'patternInclusionExpression'
    ASTStreamPatternNode.new(name, children, tree)
  else
    raise "unexpected stream node type! report to norikra developer!: #{children.map(&:name).join(',')}"
  end
end

Instance Method Details

#aliases ⇒ Object

Raises:

  • (NotImplementedError) 


1117
1118
1119
1120
 
# File 'lib/norikra/query/ast.rb', line 1117

def aliases
  # [ [ "ALIAS_NAME", "TARGET_NAME" ], ... ]
  raise NotImplementedError, "ASTStreamNode#aliases MUST be overridden by subclass"
end

#fields(default_target = nil, known_targets_aliases = []) ⇒ Object

Raises:

  • (NotImplementedError) 


1122
1123
1124
 
# File 'lib/norikra/query/ast.rb', line 1122

def fields(default_target=nil, known_targets_aliases=[])
  raise NotImplementedError, "ASTStreamNode#fields MUST be overridden by subclass"
end

#nodetype?(*sym) ⇒ Boolean

Returns:

  • (Boolean) 


1108
1109
1110
 
# File 'lib/norikra/query/ast.rb', line 1108

def nodetype?(*sym)
  sym.include?(:stream)
end

#targets ⇒ Object

Raises:

  • (NotImplementedError) 


1112
1113
1114
1115
 
# File 'lib/norikra/query/ast.rb', line 1112

def targets
  # ["TARGET_NAME"]
  raise NotImplementedError, "ASTStreamNode#targets MUST be overridden by subclass"
end