org.hibernate.hql.internal.ast.tree.SelectClause Java Examples

public ReactiveQueryLoader(
		QueryTranslatorImpl queryTranslator,
		SessionFactoryImplementor factory,
		SelectClause selectClause) {
	super( queryTranslator, factory, selectClause );
	this.queryTranslator = queryTranslator;
	this.factory = factory;
	this.selectClause = selectClause;
	this.resultSetProcessor = new ReactiveLoaderBasedResultSetProcessor( this ) {
		public CompletionStage<List<Object>> reactiveExtractResults(ResultSet rs,
																	SharedSessionContractImplementor session,
																	QueryParameters queryParameters,
																	NamedParameterContext namedParameterContext,
																	boolean returnProxies, boolean readOnly,
																	ResultTransformer forcedResultTransformer,
																	List<AfterLoadAction> afterLoadActionList) throws SQLException {
			final RowSelection rowSelection = queryParameters.getRowSelection();
			final ResultSet resultSetPreprocessed = preprocessResultSet(
					rs,
					rowSelection,
					getLimitHandler( rowSelection ),
					false,
					session
			);
			return super.reactiveExtractResults(
					resultSetPreprocessed,
					session,
					queryParameters,
					namedParameterContext,
					returnProxies,
					readOnly,
					forcedResultTransformer,
					afterLoadActionList
			);
		}
	};
}
 

/**
 * Creates a new Loader implementation.
 *
 * @param queryTranslator The query translator that is the delegator.
 * @param factory The factory from which this loader is being created.
 * @param selectClause The AST representing the select clause for loading.
 */
public QueryLoader(
		final QueryTranslatorImpl queryTranslator,
		final SessionFactoryImplementor factory,
		final SelectClause selectClause) {
	super( factory );
	this.queryTranslator = queryTranslator;
	initialize( selectClause );
	postInstantiate();
}
 

private void createSelectClauseFromFromClause(QueryNode qn) throws SemanticException {
	AST select = astFactory.create( SELECT_CLAUSE, "{derived select clause}" );
	AST sibling = qn.getFromClause();
	qn.setFirstChild( select );
	select.setNextSibling( sibling );
	selectClause = (SelectClause) select;
	selectClause.initializeDerivedSelectClause( currentFromClause );
	LOG.debug( "Derived SELECT clause created." );
}
 

private void useSelectClause(AST select) throws SemanticException {
	selectClause = (SelectClause) select;
	selectClause.initializeExplicitSelectClause( currentFromClause );
}
 

public SelectClause getSelectClause() {
	return selectClause;
}