com.avaje.ebean

Interface QueryEachWhileConsumer<T>

Type Parameters:

T - the type of entity bean being queried.

public interface QueryEachWhileConsumer<T>

Used to process a query result one bean at a time via a callback to this visitor.

If you wish to stop further processing return false from the accept method.

Unlike findList() and findSet() using a QueryResultVisitor does not require all the beans in the query result to be held in memory at once. This makes QueryResultVisitor useful for processing large queries.

Query<Customer> query = server.find(Customer.class)
    .fetch("contacts", new FetchConfig().query(2))
    .where().gt("id", 0)
    .orderBy("id")
    .setMaxRows(2);

query.findEachWhile((Customer customer) -> {

    // do something with customer
    System.out.println("-- visit " + customer);

    // return true to continue processing or false to stop
    return (customer.getId() < 40);
});

Method Summary

Modifier and Type	Method and Description
boolean	accept(T bean) Process the bean and return true if you want to continue processing more beans.

Method Detail

accept

boolean accept(T bean)

Process the bean and return true if you want to continue processing more beans. Return false if you want to stop processing further.

Parameters:

bean - the entity bean to process

Returns:

true to continue processing more beans or false to stop.