Automatic generation produced by ISE Eiffel
note description: "Implementation of DB_CONTROL" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2019-08-26 07:54:41 -0800 (Mon, 26 Aug 2019) $" revision: "$Revision: 103422 $" class interface DATABASE_CONTROL [G -> DATABASE create default_create end] create default_create -- Process instances of classes with no creation clause. -- (Default: do nothing.) -- (from ANY) feature -- Access db_spec: DATABASE -- Handle to actual database -- (from HANDLE_SPEC) ensure -- from HANDLE_SPEC not_void: Result /= Void generating_type: TYPE [detachable DATABASE_CONTROL [G]] -- 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 Manager: DATABASE_SESSION_MANAGER -- The session manager -- (from DATABASE_SESSION_MANAGER_ACCESS) 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: DATABASE_CONTROL [G]): 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: DATABASE_CONTROL [G]): 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: DATABASE_CONTROL [G]): 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 error_code: INTEGER_32 -- Error code of last transaction -- (from DB_STATUS_USE) error_message_32: STRING_32 -- SQL error message prompted by database server -- (from DB_STATUS_USE) exhausted: BOOLEAN -- Is there any more resulting row? -- (from DB_STATUS_USE) immediate_execution: BOOLEAN -- Are requests immediately executed? -- (default is no). -- (from DB_EXEC_USE) is_connected: BOOLEAN -- Has connection to the database server succeeded? -- (from DB_STATUS_USE) is_ok: BOOLEAN -- Is last SQL statement ok ? -- (from DB_STATUS_USE) is_tracing: BOOLEAN -- Is trace option for SQL queries on? -- (from DB_EXEC_USE) 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)) trace_message (m: READABLE_STRING_GENERAL) -- Trace message m to destination file. -- (from DB_EXEC_USE) require -- from DB_EXEC_USE is_tracing trace_output: FILE -- Trace destination file -- (from DB_EXEC_USE) utf_8_error_message: STRING_8 -- SQL error message prompted by database server, UTF-8 encoded. -- (from DB_STATUS_USE) utf_8_warning_message: STRING_8 -- SQL warning message prompted by database server, UTF-8 encoded. -- (from DB_STATUS_USE) warning_message_32: STRING_32 -- SQL warning message prompted by database server -- (from DB_STATUS_USE) feature -- Status setting reset -- Reset `is_ok`, error_code_stored,error_message_stored and `warning_message` after error occurred. -- (from DB_STATUS_USE) ensure -- from DB_STATUS_USE is_ok: is_ok no_error: error_code = 0 and error_message_32.is_empty and warning_message_32.is_empty set_immediate -- Set queries to be executed with a -- EXECUTE IMMEDIATE SQL statement. -- (from DB_EXEC_USE) ensure -- from DB_EXEC_USE execution_status: immediate_execution set_trace -- Trace queries sent to database server. -- (from DB_EXEC_USE) ensure -- from DB_EXEC_USE trace_status: is_tracing unset_immediate -- Set queries to be executed with a -- PREPARE followed by a EXECUTE SQL statement. -- (from DB_EXEC_USE) ensure -- from DB_EXEC_USE execution_status: not immediate_execution unset_trace -- Do not trace queries sent to database server. -- (from DB_EXEC_USE) ensure -- from DB_EXEC_USE trace_status: not is_tracing feature -- Duplication copy (other: DATABASE_CONTROL [G]) -- 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: DATABASE_CONTROL [G]) -- 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: DATABASE_CONTROL [G] -- 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: DATABASE_CONTROL [G]) -- 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: DATABASE_CONTROL [G] -- 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: DATABASE_CONTROL [G] -- 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 DATABASE_CONTROL [G] -- 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 feature -- Markers fixme (comment: READABLE_STRING_8) -- Mark code that has to be "fixed" with comment. -- (from REFACTORING_HELPER) require -- from REFACTORING_HELPER comment_not_void: comment /= Void ensure -- from REFACTORING_HELPER instance_free: class to_implement (comment: READABLE_STRING_8) -- Mark code that has to be "implemented" with comment. -- (from REFACTORING_HELPER) require -- from REFACTORING_HELPER comment_not_void: comment /= Void ensure -- from REFACTORING_HELPER instance_free: class to_implement_assertion (comment: READABLE_STRING_8): BOOLEAN -- Mark assertion that has to be "implemented" with comment. -- (from REFACTORING_HELPER) require -- from REFACTORING_HELPER comment_not_void: comment /= Void ensure -- from REFACTORING_HELPER instance_free: class 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 feature -- Qeury is_database_set: BOOLEAN -- Is database set? -- (from HANDLE_USE) feature -- Status setting and report begin -- Start of transaction status from database handle require connection_exists: is_connected commit -- Commit status from database handle require connection_exists: is_connected connect -- Connection from database require not_already_connected: not is_connected disconnect -- Disconnection from database require connection_exists: is_connected rollback -- Rollback status from database handle require connection_exists: is_connected transaction_count: INTEGER_32 -- Number of started transactions with database handle require connection_exists: is_connected invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2019, 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 DATABASE_CONTROL -- Generated by Eiffel Studio --
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