org.apache.ignite.internal.processors.cache.query

Interface GridCacheSqlIndexMetadata

All Superinterfaces:

Externalizable, Serializable

All Known Implementing Classes:

GridCacheQueryManager.CacheSqlIndexMetadata

public interface GridCacheSqlIndexMetadata
extends Externalizable

Ignite index descriptor.

All index descriptors can be obtained from GridCacheSqlMetadata.indexes(String) method.

See Also:

GridCacheSqlMetadata

Method Summary

Modifier and Type	Method and Description
boolean	descending(String field) Gets order of the index for each indexed field.
Collection<String>	descendings()
Collection<String>	fields() Gets names of fields indexed by this index.
String	name() Gets name of the index.
boolean	unique() Gets whether this is a unique index.

Methods inherited from interface java.io.Externalizable

readExternal, writeExternal

Method Detail

name

String name()

Gets name of the index.

Returns:

Index name.

fields

Collection<String> fields()

Gets names of fields indexed by this index.

Returns:

Indexed fields names.

descending

boolean descending(String field)

Gets order of the index for each indexed field.

Parameters:

field - Field name.

Returns:

True if given field is indexed in descending order.

descendings

Collection<String> descendings()

Returns:

Descendings.

unique

boolean unique()

Gets whether this is a unique index.

Returns:

True if index is unique, false otherwise.