note description: "[ Encoding of arbitrary objects graphs between different version of programs containing types that might have changed and for which the retrieving system may know how to fix the mismatches. ]" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2020-05-19 14:29:33 +0000 (Tue, 19 May 2020) $" revision: "$Revision: 104259 $" class interface SED_RECOVERABLE_SERIALIZER create make (a_serializer: SED_READER_WRITER) -- Initialize current instance -- (from SED_SESSION_SERIALIZER) require -- from SED_SESSION_SERIALIZER a_serializer_not_void: a_serializer /= Void a_serializer_ready: a_serializer.is_ready_for_writing ensure -- from SED_SESSION_SERIALIZER serializer_set: serializer = a_serializer feature -- Access generating_type: TYPE [detachable SED_RECOVERABLE_SERIALIZER] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty root_object: detachable ANY -- Root object of object graph -- (from SED_SESSION_SERIALIZER) serializer: SED_READER_WRITER -- Serializer used to encode data -- (from SED_SESSION_SERIALIZER) feature -- Comparison frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void -- or attached to isomorphic object structures? -- (from ANY) ensure -- from ANY instance_free: class shallow_implies_deep: standard_equal (a, b) implies Result both_or_none_void: (a = Void) implies (Result = (b = Void)) same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b)) symmetric: Result implies deep_equal (b, a) frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached -- to objects considered equal? -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal alias "≡≡≡" (other: SED_RECOVERABLE_SERIALIZER): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY shallow_implies_deep: standard_is_equal (other) implies Result same_type: Result implies same_type (other) symmetric: Result implies other.is_deep_equal (Current) is_equal (other: SED_RECOVERABLE_SERIALIZER): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached to -- field-by-field identical objects of the same type? -- Always uses default object comparison criterion. -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal alias "≜" (other: SED_RECOVERABLE_SERIALIZER): BOOLEAN -- Is other attached to an object of the same type -- as current object, and field-by-field identical to it? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY same_type: Result implies same_type (other) symmetric: Result implies other.standard_is_equal (Current) feature -- Status report conforms_to (other: ANY): BOOLEAN -- Does type of current object conform to type -- of other (as per Eiffel: The Language, chapter 13)? -- (from ANY) require -- from ANY other_not_void: other /= Void is_root_object_set: BOOLEAN -- Is root object of object graph set? -- (from SED_SESSION_SERIALIZER) is_traversing_mode_set: BOOLEAN -- Is traversing mode set? -- (from SED_SESSION_SERIALIZER) same_type (other: ANY): BOOLEAN -- Is type of current object identical to type of other? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY definition: Result = (conforms_to (other) and other.conforms_to (Current)) feature -- Element change set_breadth_first_traversing_mode -- Change graph traversing to breadth first. -- (from SED_SESSION_SERIALIZER) ensure -- from SED_SESSION_SERIALIZER traversing_mode_set: is_traversing_mode_set breadth_first_mode: attached {OBJECT_GRAPH_BREADTH_FIRST_TRAVERSABLE} traversable set_depth_first_traversing_mode -- Change graph traversing to depth first. -- (from SED_SESSION_SERIALIZER) ensure -- from SED_SESSION_SERIALIZER traversing_mode_set: is_traversing_mode_set depth_first_mode: attached {OBJECT_GRAPH_DEPTH_FIRST_TRAVERSABLE} traversable set_root_object (an_object: like root_object) -- Make 'an_object' the root_object. -- (from SED_SESSION_SERIALIZER) require -- from SED_SESSION_SERIALIZER an_object_not_void: an_object /= Void traversing_mode_set: is_traversing_mode_set ensure -- from SED_SESSION_SERIALIZER root_object_set: root_object = an_object and is_root_object_set root_object_identity: root_object = traversable.root_object set_serializer (a_serializer: like serializer) -- Set serializer with a_serializer. -- (from SED_SESSION_SERIALIZER) require -- from SED_SESSION_SERIALIZER a_serializer_not_void: a_serializer /= Void a_serializer_ready: a_serializer.is_ready_for_writing ensure -- from SED_SESSION_SERIALIZER serializer_set: serializer = a_serializer feature -- Duplication copy (other: SED_RECOVERABLE_SERIALIZER) -- Update current object using fields of object attached -- to other, so as to yield equal objects. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: SED_RECOVERABLE_SERIALIZER) -- Effect equivalent to that of: -- copy (other . deep_twin) -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY deep_equal: deep_equal (Current, other) frozen deep_twin: SED_RECOVERABLE_SERIALIZER -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: SED_RECOVERABLE_SERIALIZER) -- Copy every field of other onto corresponding field -- of current object. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_standard_equal: standard_is_equal (other) frozen standard_twin: SED_RECOVERABLE_SERIALIZER -- New object field-by-field identical to other. -- Always uses default copying semantics. -- (from ANY) ensure -- from ANY standard_twin_not_void: Result /= Void equal: standard_equal (Result, Current) frozen twin: SED_RECOVERABLE_SERIALIZER -- New object equal to Current -- twin calls copy; to change copying/twinning semantics, redefine copy. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable SED_RECOVERABLE_SERIALIZER -- Default value of object's type -- (from ANY) frozen default_pointer: POINTER -- Default value of type POINTER -- (Avoid the need to write p.default for -- some p of type POINTER.) -- (from ANY) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class frozen encode -- Encode object graph starting with the root object. -- (from SED_SESSION_SERIALIZER) require -- from SED_SESSION_SERIALIZER traversing_mode_set: is_traversing_mode_set root_object_set: is_root_object_set feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void invariant -- from SED_SESSION_SERIALIZER reflector_not_void: reflector /= Void reflected_object_not_void: reflected_object /= Void traversable_not_void: traversable /= Void serializer_not_void: serializer /= Void object_indexes_not_void: object_indexes /= Void -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note library: "EiffelBase: Library of reusable components for Eiffel." copyright: "Copyright (c) 1984-2020, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end -- class SED_RECOVERABLE_SERIALIZER
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