sirius.db.jdbc

Class TransformedQuery<E extends SQLEntity>

java.lang.Object

sirius.db.mixing.query.BaseQuery<TransformedQuery<E>,E>

sirius.db.jdbc.TransformedQuery<E>

Type Parameters:

E - the generic type of entities being queried

public class TransformedQuery<E extends SQLEntity>
extends BaseQuery<TransformedQuery<E>,E>

A transformed query converts a plain SQLQuery into one that returns entities rather than rows.

This can be used to generate complex SQL queries which still use to O/R mixing to return entity objects read from a query result.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	alias
protected SQLQuery	qry

Fields inherited from class sirius.db.mixing.query.BaseQuery

descriptor, limit, MAX_LIST_SIZE, mixing, skip

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TransformedQuery(EntityDescriptor descriptor, String alias, SQLQuery qry)

Method Summary

Modifier and Type	Method and Description
protected Boolean	invokeHandlerForRow(Function<E,Boolean> handler, Row row)
void	iterate(Function<E,Boolean> handler) Calls the given function on all items in the result, as long as it returns true.
String	toString()

Methods inherited from class sirius.db.mixing.query.BaseQuery

failOnOverflow, first, getDescriptor, getLimit, iterateAll, limit, one, queryFirst, queryList, queryOne, skip

Methods inherited from class java.lang.Object

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

Field Detail

alias

protected final String alias

qry

protected final SQLQuery qry

Constructor Detail

TransformedQuery

protected TransformedQuery(EntityDescriptor descriptor,
                           String alias,
                           SQLQuery qry)

Method Detail

iterate

public void iterate(Function<E,Boolean> handler)

Description copied from class: BaseQuery

Calls the given function on all items in the result, as long as it returns true.

Note that this method is intended for large results as not all items in the result need to be kept in memory when iterating through them.

Specified by:

iterate in class BaseQuery<TransformedQuery<E extends SQLEntity>,E extends SQLEntity>

Parameters:

handler - the handle to be invoked for each item in the result

invokeHandlerForRow

protected Boolean invokeHandlerForRow(Function<E,Boolean> handler,
                                      Row row)

toString

public String toString()

Overrides:

toString in class Object