org.apache.cayenne.exp.property

Class CollectionProperty<V extends Persistent,E extends Collection<V>>

java.lang.Object

org.apache.cayenne.exp.property.BaseProperty<E>

org.apache.cayenne.exp.property.CollectionProperty<V,E>

All Implemented Interfaces:

PathProperty<E>, Property<E>, RelationshipProperty<E>

Direct Known Subclasses:

ListProperty, SetProperty

public abstract class CollectionProperty<V extends Persistent,E extends Collection<V>>
extends BaseProperty<E>
implements RelationshipProperty<E>

Base class for ListProperty and SetProperty

Since:

4.2

Field Summary

Fields

Modifier and Type	Field and Description
protected Class<V>	entityType

Fields inherited from class org.apache.cayenne.exp.property.BaseProperty

expressionSupplier, name, type

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CollectionProperty(String name, Expression expression, Class<? super E> collectionType, Class<V> entityType) Constructs a new property with the given name and expression

Method Summary

Modifier and Type	Method and Description
Expression	contains(Collection<V> values)
Expression	contains(V value)
Expression	contains(V firstValue, V... moreValues)
Expression	containsId(Collection<Object> ids)
Expression	containsId(Object id)
Expression	containsId(Object firstId, Object... moreId)
EntityProperty<V>	flat() Create new "flat" property for toMany relationship.
protected Class<V>	getEntityType()
Expression	notContains(Collection<V> values)
Expression	notContains(V value)
Expression	notContains(V firstValue, V... moreValues)
Expression	notContainsId(Collection<Object> ids)
Expression	notContainsId(Object id)
Expression	notContainsId(Object firstId, Object... moreId)

Methods inherited from class org.apache.cayenne.exp.property.BaseProperty

alias, asc, ascInsensitive, ascInsensitives, ascs, count, countDistinct, desc, descInsensitive, descInsensitives, descs, enclosing, eq, eq, equals, function, function, getAlias, getExpression, getFrom, getFromAll, getName, getType, hashCode, in, in, in, isFalse, isNotNull, isNull, isTrue, ne, ne, nin, nin, nin, operator, operator, path, setIn, setInAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cayenne.exp.property.RelationshipProperty

disjoint, disjointById, dot, dot, dot, dot, dot, dot, dot, joint, outer

Methods inherited from interface org.apache.cayenne.exp.property.PathProperty

dot, dot, dot, dot, dot

Methods inherited from interface org.apache.cayenne.exp.property.Property

getAlias, getExpression, getName, getType

Field Detail

entityType

protected Class<V extends Persistent> entityType

Constructor Detail

CollectionProperty

protected CollectionProperty(String name,
                             Expression expression,
                             Class<? super E> collectionType,
                             Class<V> entityType)

Constructs a new property with the given name and expression

Parameters:

name - of the property (will be used as alias for the expression)

expression - expression for property

collectionType - type of the collection

entityType - type of related entity

Method Detail

flat

public EntityProperty<V> flat()

Create new "flat" property for toMany relationship.

Example:

 List<Object[]> result = ObjectSelect
      .columnQuery(Artist.class, Artist.ARTIST_NAME, Artist.PAINTING_ARRAY.flat())
      .select(context);
 

contains

public Expression contains(V value)

Returns:

An expression representing equality to a value.

notContains

public Expression notContains(V value)

Returns:

An expression representing inequality to a value.

contains

@SafeVarargs
public final Expression contains(V firstValue,
                                              V... moreValues)

Returns:

An expression for finding objects with values in the given set.

contains

public Expression contains(Collection<V> values)

Returns:

An expression for finding objects with values in the given set.

containsId

public Expression containsId(Object id)

Parameters:

id - object id

Returns:

An expression for finding object with given id.

containsId

public Expression containsId(Object firstId,
                             Object... moreId)

Returns:

An expression for finding objects with given id set

containsId

public Expression containsId(Collection<Object> ids)

Returns:

An expression for finding objects with given id set.

notContainsId

public Expression notContainsId(Object id)

Parameters:

id - object id

Returns:

An expression for finding object without given id.

notContainsId

public Expression notContainsId(Object firstId,
                                Object... moreId)

Returns:

An expression for finding objects without given id set.

notContainsId

public Expression notContainsId(Collection<Object> ids)

Returns:

An expression for finding objects without given id set.

notContains

public Expression notContains(Collection<V> values)

Returns:

An expression for finding objects with values not in the given set.

notContains

@SafeVarargs
public final Expression notContains(V firstValue,
                                                 V... moreValues)

Returns:

An expression for finding objects with values not in the given set.

getEntityType

protected Class<V> getEntityType()

Returns:

object entity type represented by this property