Module org.seasar.doma.core

Package org.seasar.doma.jdbc

Interface IterationCallback<TARGET,RESULT>

Type Parameters:

TARGET - the mapping target type

RESULT - the result type

All Known Implementing Classes:

OptionalSingleResultCallback, ResultListCallback, SingleResultCallback

public interface IterationCallback<TARGET,RESULT>

A callback that is invoked from a ResultSet iteration process.

The implementation class is not required to be thread safe.

Method Summary

Modifier and Type	Method	Description
default RESULT	defaultResult()	Returns the default value.
RESULT	iterate(TARGET target, IterationContext context)	Invoked from a ResultSet iteration process.
default RESULT	postIterate(RESULT result, IterationContext context)	Executes post process of iterate(Object, IterationContext).

Method Details

defaultResult

default RESULT defaultResult()

Returns the default value.

Returns:

the default value

iterate

RESULT iterate(TARGET target,
 IterationContext context)

Invoked from a ResultSet iteration process.

Parameters:

target - the object that is mapped to a row of ResultSet

context - the execution context

Returns:

the result type

postIterate

default RESULT postIterate(RESULT result,
 IterationContext context)

Executes post process of iterate(Object, IterationContext).

Parameters:

result - the result of iterate(Object, IterationContext) or the result of defaultResult() if ResultSet has no rows

context - the execution context

Returns:

the result