org.sormula.active.operation

Class SelectCount<R extends ActiveRecord<? super R>,T>

java.lang.Object

org.sormula.active.operation.ActiveOperation<R,T>

org.sormula.active.operation.SelectCount<R,T>

Type Parameters:

R - record type

T - aggregate type

public class SelectCount<R extends ActiveRecord<? super R>,T>
extends ActiveOperation<R,T>

Delegate for Table.selectCount().

Since:

1.7 and 2.1

Author:

Jeff Miller

Constructor Summary

Constructors

Constructor and Description
SelectCount(ActiveTable<R> activeTable)
SelectCount(ActiveTable<R> activeTable, java.lang.String expression)
SelectCount(ActiveTable<R> activeTable, java.lang.String expression, java.lang.String whereConditionName, java.lang.Object... parameters)

Method Summary

Modifier and Type	Method and Description
T	operate() Invoked by ActiveOperation.execute() to perform the operation.

Methods inherited from class org.sormula.active.operation.ActiveOperation

attach, attach, close, execute, getOperationDatabase, getTable, isLocalTransaction

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectCount

public SelectCount(ActiveTable<R> activeTable)

SelectCount

public SelectCount(ActiveTable<R> activeTable,
                   java.lang.String expression)

SelectCount

public SelectCount(ActiveTable<R> activeTable,
                   java.lang.String expression,
                   java.lang.String whereConditionName,
                   java.lang.Object... parameters)

Method Detail

operate

public T operate()
          throws java.lang.Exception

Description copied from class: ActiveOperation

Invoked by ActiveOperation.execute() to perform the operation. Subclasses must implement.

Specified by:

operate in class ActiveOperation<R extends ActiveRecord<? super R>,T>

Returns:

result of operation (Integer, List<R>, etc.)

Throws:

java.lang.Exception - if error