/**
 * Represents versioning of a class.
 * @since 2.3
 */
public interface VersionMetadata extends Metadata {
    /**
     * Method to set the version strategy.
     * 
     * @param strategy The strategy
     */
    VersionMetadata setStrategy(VersionStrategy strategy);

    /**
     * Accessor for the version strategy.
     * 
     * @return The strategy
     */
    VersionStrategy getStrategy();

    /**
     * Method to set the version column name.
     * 
     * @param column Name of the version clumn
     */
    VersionMetadata setColumn(String column);

    /**
     * Accessor for the version column name
     * 
     * @return The version column name
     */
    String getColumn();

    /**
     * Method to set whether indexed.
     * 
     * @param indexed Whether indexed (true | false | unique)
     */
    VersionMetadata setIndexed(Indexed indexed);

    /**
     * Accessor for whether indexed (true|false|unique)
     * 
     * @return Indexed?
     */
    Indexed getIndexed();

    /**
     * Accessor for all column(s) defined on the version.
     * 
     * @return The column(s)
     */
    ColumnMetadata[] getColumns();

    /**
     * Add a new column for this version.
     * 
     * @return The ColumnMetadata
     */
    ColumnMetadata newColumnMetadata();

    /**
     * Accessor for the number of columns defined for this version.
     * 
     * @return The number of columns
     */
    int getNumberOfColumns();

    /**
     * Method to set index metadata for the version
     * 
     * @return The IndexMetadata
     */
    IndexMetadata newIndexMetadata();

    /**
     * Accessor for any index metadata on this version
     * 
     * @return Index metadata
     */
    IndexMetadata getIndexMetadata();
}