Package com.tangosol.coherence.rest.query

Interface Query

public interface Query

Defines an interface that Query implementations must support.

Author:

as 2012.01.19

Method Summary

Modifier and Type	Method	Description
<E> Collection<E>	execute(NamedCache cache, ValueExtractor<Map.Entry,? extends E> extractor, String sOrder, int nStart, int cResults)	Return the values that satisfy this query.
Set	keySet(NamedCache cache)	Return the keys that satisfy this query.
default Collection	values(NamedCache cache, String sOrder, int nStart, int cResults)	Deprecated. As of Coherence 12.2.1.

Method Details

execute

<E> Collection<E> execute(NamedCache cache,
 ValueExtractor<Map.Entry,? extends E> extractor,
 String sOrder,
 int nStart,
 int cResults)

Return the values that satisfy this query.

Type Parameters:

E - the element type

Parameters:

cache - the cache to be queried (filtered)

extractor - the extractor to apply to each entry in the result set

sOrder - ordering expression (see ComparatorHelper for details)

nStart - the start index

cResults - the size of the result set to be returned

Returns:

the values that satisfy query criteria

Throws:

QueryException - if any error occurs during query execution

values

@Deprecated
default Collection values(NamedCache cache,
 String sOrder,
 int nStart,
 int cResults)

Deprecated.

As of Coherence 12.2.1. Use execute(NamedCache, ValueExtractor, String, int, int) instead.

Return the values that satisfy this query.

Parameters:

cache - cache to be queried (filtered)

sOrder - ordering expression (see ComparatorHelper for details)

nStart - start index

cResults - size of the result set to be returned

Returns:

the values that satisfy query criteria

Throws:

QueryException - if any error occurs during query execution

keySet

Set keySet(NamedCache cache)

Return the keys that satisfy this query.

Parameters:

cache - cache to be queried (filtered)

Returns:

the keys that satisfy query criteria

Throws:

QueryException - if any error occurs during query execution