Examples with QueryMetadata org.apache.cayenne.query.QueryMetadata used on opensource projects

Example 6 with QueryMetadata

use of org.apache.cayenne.query.QueryMetadata in project cayenne by apache.

the class DataDomainQueryActionIT method testCachedQuery.

@Test
public void testCachedQuery() {
    DataDomain domain = runtime.getDataDomain();
    Painting p = context.newObject(Painting.class);
    p.setPaintingTitle("sample");
    SelectQuery query = new SelectQuery(Painting.class);
    query.addPrefetch(Painting.TO_GALLERY.disjoint());
    query.addPrefetch(Painting.TO_ARTIST.disjoint());
    query.addOrdering(Painting.PAINTING_TITLE.asc());
    query.setCacheStrategy(QueryCacheStrategy.SHARED_CACHE);
    query.setPageSize(5);
    QueryCache cache = domain.queryCache;
    domain.queryCache = new MockQueryCache() {

        @Override
        public List<?> get(QueryMetadata metadata, QueryCacheEntryFactory factory) {
            Object results = factory.createObject();
            assertTrue("Query cache is not serializable.", results instanceof Serializable);
            return null;
        }

        @SuppressWarnings("all")
        @Override
        public void put(QueryMetadata metadata, List results) {
            assertTrue("Query cache is not serializable.", results instanceof Serializable);
        }
    };
    DataDomainQueryAction action = new DataDomainQueryAction(context, domain, query);
    action.execute();
    domain.queryCache = cache;
}

Example 7 with QueryMetadata

use of org.apache.cayenne.query.QueryMetadata in project cayenne by apache.

the class PrefetchProcessorTreeBuilderIT method testBuildTreeNoPrefetches.

@Test
public void testBuildTreeNoPrefetches() {
    final ClassDescriptor descriptor = resolver.getClassDescriptor("Artist");
    List<Object> dataRows = new ArrayList<Object>();
    dataRows.add(new DataRow(4));
    dataRows.add(new DataRow(4));
    QueryMetadata metadata = new MockQueryMetadata() {

        @Override
        public ClassDescriptor getClassDescriptor() {
            return descriptor;
        }

        @Override
        public ObjEntity getObjEntity() {
            return descriptor.getEntity();
        }

        @Override
        public DbEntity getDbEntity() {
            return getObjEntity().getDbEntity();
        }

        @Override
        public DataMap getDataMap() {
            return getObjEntity().getDataMap();
        }

        @Override
        public boolean isRefreshingObjects() {
            return true;
        }

        @Override
        public boolean isResolvingInherited() {
            return true;
        }
    };
    PrefetchTreeNode tree = new PrefetchTreeNode();
    HierarchicalObjectResolver resolver = new HierarchicalObjectResolver(context, metadata);
    PrefetchProcessorTreeBuilder builder = new PrefetchProcessorTreeBuilder(resolver, dataRows, new HashMap<Object, Object>());
    PrefetchProcessorNode processingTree = builder.buildTree(tree);
    assertTrue(processingTree.getChildren().isEmpty());
    assertFalse(processingTree.isPhantom());
    assertFalse(processingTree.isPartitionedByParent());
    assertTrue(processingTree.isDisjointPrefetch());
    assertSame(dataRows, processingTree.getDataRows());
    assertSame(descriptor.getEntity(), processingTree.getResolver().getEntity());
    assertNull(processingTree.getIncoming());
}

Example 8 with QueryMetadata

use of org.apache.cayenne.query.QueryMetadata in project cayenne by apache.

the class DataContextIT method testPerformQuery_Routing.

@Test
public void testPerformQuery_Routing() {
    Query query = mock(Query.class);
    QueryMetadata md = mock(QueryMetadata.class);
    when(query.getMetaData(any(EntityResolver.class))).thenReturn(md);
    context.performGenericQuery(query);
    verify(query).route(any(QueryRouter.class), eq(context.getEntityResolver()), (Query) isNull());
}

Example 9 with QueryMetadata

use of org.apache.cayenne.query.QueryMetadata in project cayenne by apache.

the class BaseSQLAction method readResultSet.

/**
 * Helper method to process a ResultSet.
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
protected void readResultSet(ResultSet resultSet, RowDescriptor descriptor, Query query, OperationObserver delegate) throws SQLException, Exception {
    long t1 = System.currentTimeMillis();
    QueryMetadata metadata = query.getMetaData(dataNode.getEntityResolver());
    RowReader<?> rowReader = dataNode.rowReader(descriptor, metadata);
    JDBCResultIterator resultReader = new JDBCResultIterator(null, resultSet, rowReader);
    LimitResultIterator it = new LimitResultIterator(resultReader, getInMemoryOffset(metadata.getFetchOffset()), metadata.getFetchLimit());
    if (!delegate.isIteratedResult()) {
        List resultRows = it.allRows();
        dataNode.getJdbcEventLogger().logSelectCount(resultRows.size(), System.currentTimeMillis() - t1);
        delegate.nextRows(query, resultRows);
    } else {
        try {
            delegate.nextRows(query, it);
        } catch (Exception ex) {
            it.close();
            throw ex;
        }
    }
}

Example 10 with QueryMetadata

use of org.apache.cayenne.query.QueryMetadata in project cayenne by apache.

the class EJBQLAction method performAction.

@Override
public void performAction(Connection connection, OperationObserver observer) throws SQLException, Exception {
    EJBQLCompiledExpression compiledExpression = query.getExpression(dataNode.getEntityResolver());
    final EJBQLTranslatorFactory translatorFactory = dataNode.getAdapter().getEjbqlTranslatorFactory();
    final EJBQLTranslationContext context = new EJBQLTranslationContext(dataNode.getEntityResolver(), query, compiledExpression, translatorFactory, dataNode.getAdapter().getQuotingStrategy());
    compiledExpression.getExpression().visit(new EJBQLBaseVisitor(false) {

        @Override
        public boolean visitSelect(EJBQLExpression expression) {
            EJBQLExpressionVisitor visitor = translatorFactory.getSelectTranslator(context);
            expression.visit(visitor);
            return false;
        }

        @Override
        public boolean visitDelete(EJBQLExpression expression) {
            EJBQLExpressionVisitor visitor = translatorFactory.getDeleteTranslator(context);
            expression.visit(visitor);
            return false;
        }

        @Override
        public boolean visitUpdate(EJBQLExpression expression) {
            EJBQLExpressionVisitor visitor = translatorFactory.getUpdateTranslator(context);
            expression.visit(visitor);
            return false;
        }
    });
    SQLTemplate sqlQuery = context.getQuery();
    // update with metadata
    QueryMetadata md = query.getMetaData(dataNode.getEntityResolver());
    sqlQuery.setFetchLimit(md.getFetchLimit());
    sqlQuery.setFetchOffset(md.getFetchOffset());
    sqlQuery.setResult(compiledExpression.getResult());
    sqlQuery.setPageSize(md.getPageSize());
    if (md.getStatementFetchSize() != 0) {
        sqlQuery.setStatementFetchSize(md.getStatementFetchSize());
    }
    actionFactory.sqlAction(sqlQuery).performAction(connection, observer);
}