Package smacs.write.tree

ProgramCompile conversion to target language The successor to the smacs.write.builds compilation step.

See:
Description

Interface Summary

HasProgramCompileSqlQuery	has a ProgramCompileSqlQuery instance.
HasProgramConditionList	Has List of ProgramConditions
HasProgramCurrentRecordCursor	knows a cursor variable.
HasProgramCurrentRecordSource	may be to know record source structure.
HasProgramCurrentRecordVariable	has that it has a record variable during script generation.
HasProgramDistinctVariable	assert it has a distinct variable.
HasProgramMaterializeCurrentRecordVariable	assert there is a base being a record variable.
HasProgramMaterializeList	has children of type ProgramMaterializeQuery.
HasProgramMaterializeRecordHolder	usually a ProgramTransferLoop.
HasProgramTargetTableExpression	handle target table specifications.
HasSqlOfExpression	assert of existing sql snippet.
NewScriptAddFromCursorRecord	abstraction for childs of ProgramInsertRecordField.
ProgramCondition	to be stored on a ProgramInsertConditionList.
ProgramFreezeDistinctSetHolding	usually a ProgramTransferLoop.
ProgramFreezeInsertRecordSetHolding	usually a ProgramTransferLoop.
ProgramInsertRecordFieldElement	abstraction for ProgramInsertRecordField.
ProgramSimpleNode	base interface for all smacs.write.tree classes.

Class Summary

CompilesScript	build ProgramScript tree.
NewProgramCurrentRecordVariable	a helper class.
ProgramCompileSqlQuery	create sql syntax object.
ProgramConditionDistinctSet	used to register a ProgramDistinctVariable.
ProgramConditionSqlWhere	a ProgramCondition wrapping a WHERE clause.
ProgramConditionUniqueRecord	used in ProgramInsertConditionList.
ProgramConditionUniqueRecordConverter	converts from DbMappingUniqueKeyFields into ProgramConditionUniqueRecord.
ProgramCreateCursor	create a "tupel stream source".
ProgramDbMappingTransform	wrapping a backreference to a DbMappingTransform node.
ProgramDistinctVariable	generates a new distinct-target semantics.
ProgramFreezeDistinctSet	exclusive rules by their name.
ProgramFreezeInsertRecordSet	exclusive rules by their name.
ProgramFromCursorRow	try to consume a "record" from a tupel stream (old).
ProgramInsertConditionList	register and convert conditions for a ProgramInsertCursorRow.
ProgramInsertCursorRow	try to consume a "record" from a tupel stream (new).
ProgramInsertRecordField	conversion into insert record field layout +.
ProgramInsertRecordFieldAddAllFromCursorRecord	build PsqlAddAllFromCursorRecord.
ProgramInsertRecordFieldAddFieldFromCursorRecord	build PsqlAddFieldFromCursorRecord.
ProgramInsertRecordFieldAddFieldFromExpression	build PsqlAddFieldFromExpression.
ProgramInsertRecordVariable	boolean guard-variable for a target action.
ProgramInsertValuesRecord	compute output script values computations.
ProgramMaterializeInsert	unused - ignore.
ProgramMaterializeQuery	generator instantiated by ProgramCreateCursor.
ProgramMaterializeRecord	member instance of ProgramMaterializeRecordHolder.
ProgramMaterializeRecordHolder	usually used in a ProgramTransferLoop.
ProgramScript	base script handler.
ProgramScriptNode	base for all smacs.write.tree classes.
ProgramScriptWriter	frontend - accept data items and build a ProgramScript skeleton.
ProgramSqlFieldExpression	compute a value from an sql snippet.
ProgramSqlTableExpression	the target table expression.
ProgramTransferLoop	consume a "tupel stream source" as loop over each record (new).

Package smacs.write.tree Description

ProgramCompile conversion to target language

The successor to the smacs.write.builds compilation step. This time we use the smacs.load imported tree as the intermediate representation to generate the target script from.

The real trick goes about handling the order of calls, the creation of various cursors and update rows, and to generate the control flow around the various dependencies of update calls and their foregoing build calls.

So far we have two basic script elements, the creation of a cursor along with a loop as input and a target values record along with an update/insert call.