Examples of org.apache.cayenne.access.DataContext.performQuery()

Class org.apache.cayenne.access.DataContext

Examples of org.apache.cayenne.access.DataContext.performQuery()

org.apache.cayenne.access.DataContext.performQuery()
Performs a single selecting query. Various query setting control the behavior of this method and the results returned:
- Query caching policy defines whether the results are retrieved from cache or fetched from the database. Note that queries that use caching must have a name that is used as a caching key.
- Query refreshing policy controls whether to refresh existing data objects and ignore any cached values.
- Query data rows policy defines whether the result should be returned as DataObjects or DataRows.
Since 1.2 takes any Query parameter, not just GenericSelectQuery
@return A list of DataObjects or a DataRows, depending on the value returned by{@link QueryMetadata#isFetchingDataRows()}.

        
        EJBQLQuery ejbql = new EJBQLQuery("select a from Artist a");
        ejbql.setStatementFetchSize(10);
        
        assertEquals(10, ejbql.getMetaData(dataContext.getEntityResolver()).getStatementFetchSize());
        dataContext.performQuery(ejbql);
        
        ObjectId id = new ObjectId("Artist", Artist.ARTIST_ID_PK_COLUMN, 1);
        RelationshipQuery relationshipQuery = new RelationshipQuery(id, Artist.PAINTING_ARRAY_PROPERTY, true);
        relationshipQuery.setStatementFetchSize(10);

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        ObjectId id = new ObjectId("Artist", Artist.ARTIST_ID_PK_COLUMN, 1);
        RelationshipQuery relationshipQuery = new RelationshipQuery(id, Artist.PAINTING_ARRAY_PROPERTY, true);
        relationshipQuery.setStatementFetchSize(10);
        
        assertEquals(10, relationshipQuery.getMetaData(dataContext.getEntityResolver()).getStatementFetchSize());
        dataContext.performQuery(relationshipQuery);
    }
}

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        Artist a3 = (Artist) context.newObject("Artist");
        a3.setArtistName("abc3");


        context.commitChanges();


        List artists = context.performQuery(new SelectQuery(Artist.class));
        assertEquals(3, artists.size());
    }


    public void testSetObjectId() {
        DataContext context = createDataContext();

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        SelectQuery q = new SelectQuery("Artist", ExpressionFactory.matchExp(
                "artistName",
                artistName));


        List artists = context.performQuery(q);
        assertEquals(1, artists.size());
        Artist o1 = (Artist) artists.get(0);
        assertNotNull(o1);
        assertEquals(artistName, o1.getArtistName());
    }

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        getDomain().getEventManager().removeAllListeners(
                getDomain().getSharedSnapshotCache().getSnapshotEventSubject());
        getDomain().getSharedSnapshotCache().clear();
        context = getDomain().createDataContext();


        List artists = context.performQuery(new SelectQuery(Artist.class));
        Artist artist = (Artist) artists.get(0);


        assertFalse(DataObject.DEFAULT_VERSION == artist.getSnapshotVersion());
        assertEquals(context
                .getObjectStore()

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                } else if (getOptionLabel() != null && !orderingApplied) {
                    query.addOrdering(getOptionLabel(), true);
                    orderingApplied = true;
                }


                list = dataContext.performQuery(query);


            } else if (getNamedQuery() != null) {
                list = dataContext.performQuery(getNamedQuery());


            } else if (getQueryName() != null) {

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                }


                list = dataContext.performQuery(query);


            } else if (getNamedQuery() != null) {
                list = dataContext.performQuery(getNamedQuery());


            } else if (getQueryName() != null) {
                 list = dataContext.performQuery(getQueryName(), false);


            } else {

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            } else if (getNamedQuery() != null) {
                list = dataContext.performQuery(getNamedQuery());


            } else if (getQueryName() != null) {
                 list = dataContext.performQuery(getQueryName(), false);


            } else {
                Class doClass = form.getDataObjectClass();
                String getterName = ClickUtils.toGetterName(getName());
                Method method = doClass.getMethod(getterName, null);

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                } else if (getOptionLabel() != null && !orderingApplied) {
                    query.addOrdering(getOptionLabel(), true);
                    orderingApplied = true;
                }


                list = dataContext.performQuery(query);
            }


            if (isRequired() && getOptionList().isEmpty() || isOptional()) {
                getOptionList().add(Option.EMPTY_OPTION);
            }

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        DataContext dataContext = DataContext.getThreadDataContext();


        List list = Collections.EMPTY_LIST;


        if (getSelectQuery() != null) {
            list = dataContext.performQuery(getSelectQuery());


        } else if (getNamedQuery() != null) {
            list = dataContext.performQuery(getNamedQuery());


        } else if (getQueryName() != null) {

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