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package org.apache.cayenne.dbsync.naming;

import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.DbRelationship;

/**
 * A strategy for creating names for object layer metadata artifacts based on their DB counterpart naming or structure.
 * Generated names should normally be further cleaned by passing them through
 * {@link org.apache.cayenne.dbsync.naming.NameBuilder}, that will resolve duplication conflicts.
 *
 * @since 4.0
 */
public interface ObjectNameGenerator {

    /**
     * Generates a name for ObjEntity derived from DbEntity name.
     */
    String objEntityName(DbEntity dbEntity);

    /**
     * Generates a name for ObjAttribute derived from DbAttribute name.
     */
    String objAttributeName(DbAttribute dbAttribute);

    /**
     * Generates a String that can be used as a name of an ObjRelationship, derived from join semantics of a chain of
     * connected DbRelationships.
     * <p>The chain must contain at least one relationship. Though if we are dealing with a flattened
     * relationship, more than one can be passed, in the same order as they are present in a flattened
     * relationship.
     * <p>Generated name can be used for DbRelationship itself (in which case the chain must have exactly one parameter).
     */
    String relationshipName(DbRelationship... relationshipChain);

}