Class: ActiveFacts::CQL::Compiler::SetConstraint
- Inherits:
-
Constraint
- Object
- Definition
- Constraint
- ActiveFacts::CQL::Compiler::SetConstraint
- Defined in:
- lib/activefacts/cql/compiler/constraint.rb
Direct Known Subclasses
Instance Attribute Summary
Attributes inherited from Definition
#constellation, #tree, #vocabulary
Instance Method Summary collapse
-
#initialize(context_note, enforcement, clauses_lists) ⇒ SetConstraint
constructor
A new instance of SetConstraint.
- #role_sequences_for_common_bindings(ignore_trailing_steps = false) ⇒ Object
- #warn_ignored_queries ⇒ Object
Methods inherited from Constraint
#bind_clauses, #common_bindings, #compile, #loose_bind, #loose_bind_wherever_possible, #loose_binding, #to_s
Methods inherited from Definition
#all_bindings_in_clauses, #build_all_steps, #build_steps, #build_variables, #compile, #source, #to_s
Constructor Details
#initialize(context_note, enforcement, clauses_lists) ⇒ SetConstraint
Returns a new instance of SetConstraint.
260 261 262 |
# File 'lib/activefacts/cql/compiler/constraint.rb', line 260 def initialize context_note, enforcement, clauses_lists super context_note, enforcement, clauses_lists end |
Instance Method Details
#role_sequences_for_common_bindings(ignore_trailing_steps = false) ⇒ Object
268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 |
# File 'lib/activefacts/cql/compiler/constraint.rb', line 268 def role_sequences_for_common_bindings ignore_trailing_steps = false @clauses_lists. zip(@bindings_by_list). map do |clauses_list, bindings| # Does this clauses_list involve a query? if clauses_list.size > 1 or clauses_list.detect do |clause| clause.refs.detect{|ref| ref.nested_clauses } or clause.includes_literals end debug :query, "Building query for #{clauses_list.inspect}" do debug :query, "Constrained bindings are #{@common_bindings.inspect}" # Every Binding in these clauses becomes a Variable, # and every clause becomes a Step (and a RoleSequence). # The returned RoleSequences contains the RoleRefs for the common_bindings. # Create a query with a variable for every binding and all steps: query = build_variables(clauses_list) roles_by_binding = build_all_steps(clauses_list) query.validate # Create the projected RoleSequence for the constraint: role_sequence = @constellation.RoleSequence(:new) @common_bindings.each do |binding| role, play = *roles_by_binding[binding] @constellation.RoleRef(role_sequence, role_sequence.all_role_ref.size, :role => role, :play => play) end role_sequence end else # There's no query in this clauses_list, just create a role_sequence role_sequence = @constellation.RoleSequence(:new) query_bindings = bindings-@common_bindings unless query_bindings.empty? or ignore_trailing_steps && query_bindings.size <= 1 debug :constraint, "REVISIT: #{self.class}: Ignoring query from #{@common_bindings.inspect} to #{query_bindings.inspect} in #{clauses_list.inspect}" end @common_bindings.each do |binding| roles = clauses_list. map do |clause| clause.refs.detect{|vr| vr.binding == binding } end. compact. # A query clause will probably not have the common binding map do |ref| ref.role_ref && ref.role_ref.role or ref.role end. compact # REVISIT: Should use clause side effects to preserve residual adjectives here. @constellation.RoleRef(role_sequence, role_sequence.all_role_ref.size, :role => roles[0]) end role_sequence end end end |
#warn_ignored_queries ⇒ Object
264 265 266 |
# File 'lib/activefacts/cql/compiler/constraint.rb', line 264 def warn_ignored_queries # No warnings needed here any more end |