/**
* Mark the specified columns as keys.
*
* @param columns the columns
* @return the current factory
*/
public final MF addKeys(String... columns) {
for (String col : columns) {
addColumnDefinition(col, identity.addKey());
}
return (MF) this;
}
/**
* Associate an alias on the column key to rename to value.
*
* @param key the column to rename
* @param value then name to rename to
* @return the current factory
*/
public final MF addAlias(String key, String value) {
return addColumnDefinition(key, identity.addRename(value));
}