Examples of com.mobixess.jodb.soda.api.Query.constrain()

com.mobixess.jodb.soda.api.Query.constrain()
adds a constraint to this node.

If the constraint contains attributes that are not yet present in the query graph, the query graph is extended accordingly.

Special behaviour for:
- class {@link Class}: confine the result to objects of one class (if the {@link Class} object represents a class)or to objects implementing a specific interface (if the {@link Class} object represents an interface).
- interface {@link Evaluation}: run evaluation callbacks against all candidates.
@param constraint the constraint to be added to this Query. @return {@link Constraint} a new {@link Constraint} for thisquery node or null for objects implementing the {@link Evaluation} interface.

            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        
        query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }

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            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        
        Query query = sessionContainer.query();
        query.constrain(ObjectA.class);


        query.descend("_val2").constrain(0).smaller();
        
        
        long queryStart = System.currentTimeMillis();

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            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
//        List classes = sessionContainer.getAllObjects();
        Query query = sessionContainer.query();
        query.constrain(initialObject.getClass());
        List classes = query.execute();
        if (classes.size() != 1) {
            throw new RuntimeException();
        }
        Object obj = classes.get(0);

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            sessionContainer = getContainerForFile(testFile);
        }
        
        Query query = sessionContainer.query();
        
        query.constrain(innerClassObject.getInnerClass().getClass());
        
        List list = query.execute();
        
        if(list.size()!=1 || list.get(0).getClass() != innerClassObject.getInnerClass().getClass()){
            throw new RuntimeException(" +++"+list.size());

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            sessionContainer = getContainerForFile(testFile);
        }
        
        
        query = sessionContainer.query();
        query.constrain(ObjectA.class);


        query.descend("_val2").constrain(0).smaller();
        
        queryStart = System.currentTimeMillis();
        list = (JODBQueryList) query.execute();

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    public <T> ObjectSet<T> get(Object template) throws IOException, IllegalClassTypeException {
        if(template == null){
            return _session.getAllObjects();
        }else{
            Query query = query();
            query.constrain(template);
            return query.execute();
        }
    }


    public Query query() {

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        return new QueryNode("",_session, null);
    }


    public <Type> ObjectSet<Type> query(Class<Type> clazz) throws IOException, IllegalClassTypeException {
        Query query = query();
        query.constrain(clazz);
        return query.execute();
    }


    public void rollback() {
        _transactionContainer.reset();

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        }
        fillTestData(objectContainer);
        benchmarkResults._refillTime = System.currentTimeMillis() - startTime;
        //form query for all elements
        Query query = objectContainer.query();
        query.constrain(BenchmarkObject.class);
        query.descend("_val1").constrain(Integer.MIN_VALUE).greater();
        query.descend("_val1").constrain(Integer.MAX_VALUE).smaller();
        if(sort){
            benchmarkResults._sorted = true;
            query.descend("_val1").orderAscending();

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