eworks.eRQL.model
Class Value
java.lang.Object
eworks.eRQL.model.ModelComponent
eworks.eRQL.model.Value
- Direct Known Subclasses:
- Junction, Literal, Query
- public abstract class Value
- extends ModelComponent
Abstract base class for evaluable components of eRQL queries.
- Version:
- 1.00 (2003-11-03)
- Author:
- Fabian Wleklinski (fabian@wleklinski.de)
Constructor Summary |
Value()
|
Method Summary |
Value |
compact()
Compacts this value and returns the compacted value. |
abstract Tuples |
query(RqlEngine rqlEngine)
Evaluates this part of the query. |
Value
public Value()
compact
public Value compact()
- Compacts this value and returns the compacted value.
- Returns:
- compacted value.
query
public abstract Tuples query(RqlEngine rqlEngine)
throws RqlExecutingException
- Evaluates this part of the query.
- Parameters:
rqlEngine
- The RqlEngine to execute.
- Returns:
- The subquery's result.
- Throws:
RqlExecutingException
- if something goes wrong.