org.datanucleus.api.jdo.query

Class MapExpressionImpl<T extends Map<K,V>,K,V>

java.lang.Object

org.datanucleus.api.jdo.query.ExpressionImpl<T>

org.datanucleus.api.jdo.query.MapExpressionImpl<T,K,V>

All Implemented Interfaces:

Expression<T>, MapExpression<T,K,V>

public class MapExpressionImpl<T extends Map<K,V>,K,V>
extends ExpressionImpl<T>
implements MapExpression<T,K,V>

Implementation of a MapExpression

Constructor Summary

Constructors

Constructor and Description
MapExpressionImpl(Class<T> cls, String name, ExpressionType type)
MapExpressionImpl(PersistableExpression parent, String name)

Method Summary

Methods

Modifier and Type	Method and Description
BooleanExpression	containsEntry(Expression expr) Method returning whether the specified entry expression is contained in this map.
BooleanExpression	containsEntry(Map.Entry<K,V> entry) Method returning whether the specified entry is contained in this map.
BooleanExpression	containsKey(Expression expr) Method returning whether the specified key expression is contained in this map.
BooleanExpression	containsKey(K key) Method returning whether the specified key is contained in this map.
BooleanExpression	containsValue(Expression expr) Method returning whether the specified value expression is contained in this map.
BooleanExpression	containsValue(V value) Method returning whether the specified value is contained in this map.
BooleanExpression	isEmpty() Method returning whether the map is empty.
NumericExpression<Integer>	size() Method returning an expression for the size of the map

Methods inherited from class org.datanucleus.api.jdo.query.ExpressionImpl

cast, count, countDistinct, eq, eq, getQueryExpression, instanceOf, isParameter, isVariable, ne, ne

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.datanucleus.query.typesafe.Expression

cast, count, countDistinct, eq, eq, instanceOf, ne, ne

Constructor Detail

MapExpressionImpl

public MapExpressionImpl(PersistableExpression parent,
                 String name)

MapExpressionImpl

public MapExpressionImpl(Class<T> cls,
                 String name,
                 ExpressionType type)

Method Detail

containsEntry

public BooleanExpression containsEntry(Map.Entry<K,V> entry)

Description copied from interface: MapExpression

Method returning whether the specified entry is contained in this map.

Specified by:

containsEntry in interface MapExpression<T extends Map<K,V>,K,V>

Parameters:

entry - The entry expression

Returns:

Whether it is contained here

containsEntry

public BooleanExpression containsEntry(Expression expr)

Description copied from interface: MapExpression

Method returning whether the specified entry expression is contained in this map.

Specified by:

containsEntry in interface MapExpression<T extends Map<K,V>,K,V>

Parameters:

expr - The entry expression

Returns:

Whether it is contained here

containsKey

public BooleanExpression containsKey(Expression expr)

Description copied from interface: MapExpression

Method returning whether the specified key expression is contained in this map.

Specified by:

containsKey in interface MapExpression<T extends Map<K,V>,K,V>

Parameters:

expr - The key expression

Returns:

Whether it is contained here

containsKey

public BooleanExpression containsKey(K key)

Description copied from interface: MapExpression

Method returning whether the specified key is contained in this map.

Specified by:

containsKey in interface MapExpression<T extends Map<K,V>,K,V>

Parameters:

key - The key

Returns:

Whether it is contained here

containsValue

public BooleanExpression containsValue(Expression expr)

Description copied from interface: MapExpression

Method returning whether the specified value expression is contained in this map.

Specified by:

containsValue in interface MapExpression<T extends Map<K,V>,K,V>

Parameters:

expr - The value expression

Returns:

Whether it is contained here

containsValue

public BooleanExpression containsValue(V value)

Description copied from interface: MapExpression

Method returning whether the specified value is contained in this map.

Specified by:

containsValue in interface MapExpression<T extends Map<K,V>,K,V>

Parameters:

value - The value

Returns:

Whether it is contained here

isEmpty

public BooleanExpression isEmpty()

Description copied from interface: MapExpression

Method returning whether the map is empty.

Specified by:

isEmpty in interface MapExpression<T extends Map<K,V>,K,V>

Returns:

Whether it is empty

size

public NumericExpression<Integer> size()

Description copied from interface: MapExpression

Method returning an expression for the size of the map

Specified by:

size in interface MapExpression<T extends Map<K,V>,K,V>

Returns:

The size