org.sormula.operation.cascade
Class ModifyCascadeOperation<S,T>

java.lang.Object
  org.sormula.operation.cascade.CascadeOperation<S,T>
      org.sormula.operation.cascade.ModifyCascadeOperation<S,T>

Type Parameters:

S - row class of table that is source of cascade

T - row class of table that is target of cascade

Direct Known Subclasses:

DeleteCascadeOperation, InsertCascadeOperation, SaveCascadeOperation, UpdateCascadeOperation

public abstract class ModifyCascadeOperation<S,T>
extends CascadeOperation<S,T>

Base class for cascades that modify database.

Author:

Jeff Miller

Constructor Summary

ModifyCascadeOperation(SormulaField<S,?> targetField, Table<T> targetTable, java.lang.Class<?> cascadeOperationClass, boolean post)
Constructs.

Method Summary

void	cascade(S sourceRow) Performs cascade operation.
void	close() Cleans up by closing any JDBC resources.
void	prepare() Prepares operation by initializing JDBC statements.

Methods inherited from class org.sormula.operation.cascade.CascadeOperation

createOperation, getTargetField, getTargetTable, isPost

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ModifyCascadeOperation

public ModifyCascadeOperation(SormulaField<S,?> targetField,
                              Table<T> targetTable,
                              java.lang.Class<?> cascadeOperationClass,
                              boolean post)

Constructs.

Parameters:

targetField - cascade operation uses row(s) from this field

targetTable - cascade operation is performed on this table

cascadeOperationClass - class of cascade operation

post - true if cascade is performed after row execute (see ModifyOperation.postExecute(R)); false if cascade is performed before row execute (see ModifyOperation.preExecute(R)

Method Detail

cascade

public void cascade(S sourceRow)
             throws OperationException

Performs cascade operation.

Specified by:

cascade in class CascadeOperation<S,T>

Parameters:

sourceRow - row in parent table that was source the cascade

Throws:

OperationException - if error

prepare

public void prepare()
             throws OperationException

Prepares operation by initializing JDBC statements.

Specified by:

prepare in class CascadeOperation<S,T>

Throws:

OperationException - if error

close

public void close()
           throws OperationException

Cleans up by closing any JDBC resources.

Specified by:

close in class CascadeOperation<S,T>

Throws:

OperationException - if error