com.datastax.driver.mapping

Class Result<T>

java.lang.Object

com.datastax.driver.mapping.Result<T>

All Implemented Interfaces:

Iterable<T>

public class Result<T>
extends Object
implements Iterable<T>

A ResultSet mapped to an entity class.

Method Summary

Modifier and Type	Method and Description
List<T>	all() Returns all the remaining results (entities) in this mapped result set as a list.
ExecutionInfo	getExecutionInfo() Returns information on the execution of this query.
boolean	isExhausted() Test whether this mapped result set has more results.
Iterator<T>	iterator() An iterator over the entities of this mapped result set.
T	one() Returns the next result (i.e.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

isExhausted

public boolean isExhausted()

Test whether this mapped result set has more results.

Returns:

whether this mapped result set has more results.

one

public T one()

Returns the next result (i.e. the entity corresponding to the next row in the result set).

Returns:

the next result in this mapped result set or null if it is exhausted.

all

public List<T> all()

Returns all the remaining results (entities) in this mapped result set as a list.

Returns:

a list containing the remaining results of this mapped result set. The returned list is empty if and only the result set is exhausted.

iterator

public Iterator<T> iterator()

An iterator over the entities of this mapped result set.

The Iterator.next() method is equivalent to calling one(). So this iterator will consume results and after a full iteration, the mapped result set (and underlying ResultSet) will be empty.

The returned iterator does not support the Iterator.remove() method.

Specified by:

iterator in interface Iterable<T>

Returns:

an iterator that will consume and return the remaining rows of this mapped result set.

getExecutionInfo

public ExecutionInfo getExecutionInfo()

Returns information on the execution of this query.

The returned object includes basic information such as the queried hosts, but also the Cassandra query trace if tracing was enabled for the query.

Returns:

the execution info for this query.