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package org.glassfish.jersey.message.filtering.spi;
import java.util.Set;
import org.glassfish.jersey.spi.Contract;
/**
* Provides {@link EntityGraph entity graph} and {@link ObjectGraph object graph} instances.
*
* @author Michal Gajdos
*/
@Contract
public interface EntityGraphProvider {
/**
* Get an entity graph for given class. New graph is created if no graph exists for given class.
*
* @param entityClass entity class the graph should be created for.
* @param forWriter flag determining whether the graph should be created for writer/reader.
* @return an entity graph.
*/
public EntityGraph getOrCreateEntityGraph(final Class<?> entityClass, final boolean forWriter);
/**
* Get an empty entity graph for given class. New graph is created if the stored one is not an empty entity graph or no graph
* exists for given class. This method overrides the graph created by {@link #getOrCreateEntityGraph(Class, boolean)} method.
*
* @param entityClass entity class the graph should be created for.
* @param forWriter flag determining whether the graph should be created for writer/reader.
* @return an empty entity graph.
*/
public EntityGraph getOrCreateEmptyEntityGraph(final Class<?> entityClass, final boolean forWriter);
/**
* Determine whether an entity graph for given entity class has been created by this provider.
*
* @param entityClass entity class for which the graph should be checked.
* @param forWriter flag determining whether the check should be in writer/reader graphs.
* @return {@code true} if the entity graph already exists, {@code false} otherwise.
*/
public boolean containsEntityGraph(final Class<?> entityClass, final boolean forWriter);
/**
* Create an {@code ObjectGraph} for given parameters. Every time this method is called a new instance of object graph is
* created.
*
* @param entityClass entity class which the object graph should be created for.
* @param filteringScopes entity-filtering scopes the graph should be created for.
* @param forWriter flag determining whether the graph should be created for writer/reader.
* @return an entity-filtering object graph instance.
*/
public ObjectGraph createObjectGraph(final Class<?> entityClass, final Set<String> filteringScopes, final boolean forWriter);
}