core/runtime/src/main/java/org/qi4j/runtime/composite/StateResolver.java

/*
 * Copyright (c) 2012, Kent Sølvsten.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.qi4j.runtime.composite;

import java.util.List;
import java.util.Map;
import org.qi4j.api.association.AssociationDescriptor;
import org.qi4j.api.entity.EntityReference;
import org.qi4j.api.property.PropertyDescriptor;

/**
 * StateResolver.
 */
public interface StateResolver
{
    Object getPropertyState( PropertyDescriptor propertyDescriptor );

    EntityReference getAssociationState( AssociationDescriptor associationDescriptor );

    List<EntityReference> getManyAssociationState( AssociationDescriptor associationDescriptor );

    Map<String, EntityReference> getNamedAssociationState( AssociationDescriptor associationDescriptor );
}