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).or(query.constrain(ObjectB.class));
        list = query.execute();
        if(list.size()!=2){
            throw new RuntimeException();
        }

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            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        
        query = sessionContainer.query();
        query.constrain(ObjectA.class).or(query.constrain(ObjectB.class).not());
        list = query.execute();
        if(list.size()!=1){
            throw new RuntimeException();
        }
        if(list.get(0).getClass() != ObjectA.class){

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            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        
        query = sessionContainer.query();
        query.constrain(ObjectA.class).or(query.constrain(ObjectB.class).not());
        list = query.execute();
        if(list.size()!=1){
            throw new RuntimeException();
        }
        if(list.get(0).getClass() != ObjectA.class){

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            sessionContainer = getContainerForFile(testFile);
        }
        
        
        query = sessionContainer.query();
        constraint = query.constrain(ObjectA.class);
        query.descend("_val2").constrain(2).greater().and(constraint);
        list = query.execute();
        if(list.size()!=1){
            throw new RuntimeException();
        }

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            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        
        query = sessionContainer.query();
        constraint = query.constrain(ObjectA.class);
        query.descend("_val2").constrain(2).greater().or(constraint);
        list = query.execute();
        if(list.size()!=1){
            throw new RuntimeException();
        }

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        if(reopen){
            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        Query query = sessionContainer.query();
        query.constrain(new ObjectAEvaluation());
        
        List list = query.execute();
        
        if(list.size()!=1){
            throw new RuntimeException(""+list.size());

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            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        
        query = sessionContainer.query();
        query.constrain(new ObjectAEvaluation()).not();
        
        list = query.execute();
        
        if(list.size()!=1){
            throw new RuntimeException();

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

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            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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        if(reopen){
            sessionContainer.close();
            sessionContainer = getContainerForFile(testFile);
        }
        Query query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val1").orderAscending();
        }else{
            query.descend("_val1").orderDescending();
        }

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