Package org.apache.geode.cache.query.types

Interface MapType

All Superinterfaces:

CollectionType, DataSerializable, ObjectType, Serializable

public interface MapType
extends CollectionType

Represents the type of a Map, a collection that contains keys as well as values and maintains an association between key-value pairs. The type of the keys is obtained from the getKeyType method, and the type of the values is obtained from the getElementType method.

Since:

GemFire 4.0

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.geode.DataSerializable

DataSerializable.Replaceable

Method Summary

Modifier and Type	Method	Description
StructType	getEntryType()	Return the type of the entries in this map.
ObjectType	getKeyType()	Return the type of the keys in this type of map.

Methods inherited from interface org.apache.geode.cache.query.types.CollectionType

allowsDuplicates, getElementType, isOrdered

Methods inherited from interface org.apache.geode.DataSerializable

fromData, toData

Methods inherited from interface org.apache.geode.cache.query.types.ObjectType

getSimpleClassName, isCollectionType, isMapType, isStructType, resolveClass

Method Details

getKeyType

ObjectType getKeyType()

Return the type of the keys in this type of map.

Returns:

the ObjectType of the keys in this type of map.

getEntryType

StructType getEntryType()

Return the type of the entries in this map. In the context of the query language, the entries in a map are structs with key and value fields.

Returns:

the type of the entries in this map