org.refcodes.criteria.factories

Interface CriteriaFactory<Q>

Type Parameters:

Q - The type of the query statement, usually a String.

All Known Implementing Classes:

ExpressionCriteriaFactoryImpl

public interface CriteriaFactory<Q>

The CriteriaFactory constructs a Criteria (tree) from the provided query. The syntax of the query is implementation specific and may look as follows:

( ( ( City = 'Berlin' ) OR ( City = 'Munich' ) ) AND ( Surname = 'Miller' ) )

CAUTION: The syntax supported for the query statement is implementation depended!

The ExpressionCriteriaFactoryImpl implements a CriteriaFactory being capable of parsing the above query.

Method Summary

Modifier and Type	Method and Description
Criteria	fromQuery(Q aQuery) Parsed the given query and constructs a Criteria (tree).

Method Detail

fromQuery

Criteria fromQuery(Q aQuery)
            throws ParseException

Parsed the given query and constructs a Criteria (tree). Whether a CriteriaNode or just a CriteriaLeaf is returned depends on the complexity of the query.

Parameters:

aQuery - The query to be parsed.

Returns:

A Criteria (tree) representing the query as an object oriented Criteria tree structure.

Throws:

ParseException - Thrown in case the query could not be parsed.