ninja.ugly.prevail.chunk

Interface QueryResult<V>

Type Parameters:

V -

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, java.lang.Iterable<V>

All Known Implementing Classes:

QueryResult.EmptyQueryResult, QueryResult.IterableQueryResult, QueryResult.SingletonQueryResult

public interface QueryResult<V>
extends java.lang.Iterable<V>, java.io.Closeable

A container for the results of a query on a Chunk.

A QueryResult implements both Iterable and Closeable interfaces. It is intended to be used as a lazy-loading wrapper for a number of results, that may hold system resources open. Some implementations will not lazy-load. Some implementations will hold no system resources. In any case, client code should not assume that it the case in order to support difference Chunk implementations. ie. Client code should always close a QueryResult when it is finished with.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	QueryResult.EmptyQueryResult<V> An empty implementation of QueryResult interface that does nothing.
static class	QueryResult.IterableQueryResult<V> An implementation of QueryResult interface that wraps a collection of values.
static class	QueryResult.SingletonQueryResult<V> An implementation of QueryResult interface that wraps a single value.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isClosed() Returns if this QueryResult is already closed.

Methods inherited from interface java.lang.Iterable

iterator

Methods inherited from interface java.io.Closeable

close

Method Detail

isClosed

boolean isClosed()

Returns if this QueryResult is already closed.

Returns:

a boolean true if this query result is close, false otherwise