Examples of org.teiid.query.optimizer.relational.AliasGenerator

Package org.teiid.query.optimizer.relational

Examples of org.teiid.query.optimizer.relational.AliasGenerator

org.teiid.query.optimizer.relational.AliasGenerator
Adds safe (generated) aliases to the source command The structure is a little convoluted: AliasGenerator - structure navigator, alters the command by adding alias symbols NamingVisitor - changes the output names of Element and Group symbols SQLNamingContext - a hierarchical context for tracking Element and Group names

                Collection groups = GroupCollectorVisitor.getGroupsIgnoreInlineViews(command, false);
                final GroupSymbol symbol = (GroupSymbol)groups.iterator().next();
                Object modelId = md.getModelID(symbol.getMetadataID());
                boolean supportsGroupAliases = CapabilitiesUtil.supportsGroupAliases(modelId, md, capFinder);
                boolean supportsProjection = CapabilitiesUtil.supports(Capability.QUERY_SELECT_EXPRESSION, modelId, md, capFinder);
                command.acceptVisitor(new AliasGenerator(supportsGroupAliases, !supportsProjection));
                expectedQueries.add(command.toString());
            } catch (Exception err) {
                throw new RuntimeException(err);
            }
        }

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            command = QueryParser.getQueryParser().parseCommand(queryString);
            QueryResolver.resolveCommand(command, metadata);
            command = QueryRewriter.rewrite(command, metadata, null);
            expandAllSymbol(command);            
            if (generateAliases) {
                command.acceptVisitor(new AliasGenerator(supportsGroupAlias));
            }
            return new LanguageBridgeFactory(metadata).translate(command);
        } catch (TeiidException e) {
            throw new TeiidRuntimeException(e);
    }

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org.teiid.cdk.CommandBuilder

org.teiid.query.optimizer.TestOptimizer

org.teiid.query.sql.lang.OrderByItem

org.teiid.query.sql.symbol.AliasSymbol

org.teiid.query.sql.symbol.ElementSymbol

org.teiid.query.sql.symbol.Expression

org.teiid.query.sql.symbol.ExpressionSymbol

org.teiid.query.sql.symbol.GroupSymbol

org.teiid.query.sql.symbol.SingleElementSymbol

java.util.List

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