Module org.seasar.doma.core

Package org.seasar.doma.internal.jdbc.command

Class AbstractIterationHandler<TARGET,RESULT>

java.lang.Object

org.seasar.doma.internal.jdbc.command.AbstractIterationHandler<TARGET,RESULT>

All Implemented Interfaces:

ResultSetHandler<RESULT>

Direct Known Subclasses:

AssociationEntityPoolIterationHandler, EntityIterationHandler, EntityPoolIterationHandler, MapIterationHandler, ScalarIterationHandler

public abstract class AbstractIterationHandler<TARGET,RESULT>
extends Object
implements ResultSetHandler<RESULT>

Field Summary

Fields

Modifier and Type	Field	Description
protected final IterationCallback<TARGET,RESULT>	iterationCallback

Constructor Summary

Constructors

Constructor	Description
AbstractIterationHandler(IterationCallback<TARGET,RESULT> iterationCallback)

Method Summary

Modifier and Type	Method	Description
protected abstract ObjectProvider<TARGET>	createObjectProvider(SelectQuery query)
Supplier<RESULT>	handle(ResultSet resultSet, SelectQuery query, ResultSetRowIndexConsumer consumer)	Processes a ResultSet and converts it into the specified result type.
protected RESULT	iterate(Iterator<TARGET> iterator)

Methods inherited from class java.lang.Object

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

Field Details

iterationCallback

protected final IterationCallback<TARGET,RESULT> iterationCallback

Constructor Details

AbstractIterationHandler

public AbstractIterationHandler(IterationCallback<TARGET,RESULT> iterationCallback)

Method Details

handle

public Supplier<RESULT> handle(ResultSet resultSet,
 SelectQuery query,
 ResultSetRowIndexConsumer consumer)
                        throws SQLException

Description copied from interface: ResultSetHandler

Processes a ResultSet and converts it into the specified result type.

This method is called after executing a database query to process the returned ResultSet. It should iterate through the ResultSet and transform the data according to the implementation's logic. The consumer parameter can be used to track the current row position during processing.

Specified by:

handle in interface ResultSetHandler<TARGET>

Parameters:

resultSet - the JDBC ResultSet to process

query - the query that produced this ResultSet

consumer - a consumer that receives information about the current row being processed

Returns:

a supplier that provides the result of processing the ResultSet

Throws:

SQLException - if a database access error occurs during ResultSet processing

iterate

protected RESULT iterate(Iterator<TARGET> iterator)

createObjectProvider

protected abstract ObjectProvider<TARGET> createObjectProvider(SelectQuery query)