org.apache.calcite.adapter.enumerable.PhysType Java Examples
The following examples show how to use
org.apache.calcite.adapter.enumerable.PhysType.
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Example #1
Source File: GremlinTraversalToEnumerableRelConverter.java From sql-gremlin with Apache License 2.0 | 6 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { final BlockBuilder list = new BlockBuilder(); final GremlinTraversalRel.Implementor gremlinImplementor = new GremlinTraversalRel.Implementor(); gremlinImplementor.visitChild(0, getInput()); PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result( physType, Blocks.toBlock( Expressions.call(GremlinTraversalScan.class, "scan"))); // return null; }
Example #2
Source File: CsvTableScan.java From calcite with Apache License 2.0 | 6 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), pref.preferArray()); if (table instanceof JsonTable) { return implementor.result( physType, Blocks.toBlock( Expressions.call(table.getExpression(JsonTable.class), "enumerable"))); } return implementor.result( physType, Blocks.toBlock( Expressions.call(table.getExpression(CsvTranslatableTable.class), "project", implementor.getRootExpression(), Expressions.constant(fields)))); }
Example #3
Source File: SparkToEnumerableConverter.java From calcite with Apache License 2.0 | 6 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { // Generate: // RDD rdd = ...; // return SparkRuntime.asEnumerable(rdd); final BlockBuilder list = new BlockBuilder(); final SparkRel child = (SparkRel) getInput(); final PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), JavaRowFormat.CUSTOM); SparkRel.Implementor sparkImplementor = new SparkImplementorImpl(implementor); final SparkRel.Result result = child.implementSpark(sparkImplementor); final Expression rdd = list.append("rdd", result.block); final Expression enumerable = list.append( "enumerable", Expressions.call( SparkMethod.AS_ENUMERABLE.method, rdd)); list.add( Expressions.return_(null, enumerable)); return implementor.result(physType, list.toBlock()); }
Example #4
Source File: EnumerableToSparkConverter.java From calcite with Apache License 2.0 | 6 votes |
public Result implementSpark(Implementor implementor) { // Generate: // Enumerable source = ...; // return SparkRuntime.createRdd(sparkContext, source); final BlockBuilder list = new BlockBuilder(); final EnumerableRel child = (EnumerableRel) getInput(); final PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), JavaRowFormat.CUSTOM); final Expression source = null; // TODO: final Expression sparkContext = Expressions.call( SparkMethod.GET_SPARK_CONTEXT.method, implementor.getRootExpression()); final Expression rdd = list.append( "rdd", Expressions.call( SparkMethod.CREATE_RDD.method, sparkContext, source)); list.add( Expressions.return_(null, rdd)); return implementor.result(physType, list.toBlock()); }
Example #5
Source File: OLAPJoinRel.java From kylin-on-parquet-v2 with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { context.setReturnTupleInfo(rowType, columnRowType); PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); RelOptTable factTable = context.firstTableScan.getTable(); MethodCallExpression exprCall = Expressions.call(factTable.getExpression(OLAPTable.class), "executeOLAPQuery", implementor.getRootExpression(), Expressions.constant(context.id)); return implementor.result(physType, Blocks.toBlock(exprCall)); }
Example #6
Source File: ProcessorStatusTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(ProcessorStatusTable.class), "project", Expressions.constant(fields)))); }
Example #7
Source File: BulletinTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(BulletinTable.class), "project", Expressions.constant(fields)))); }
Example #8
Source File: ProcessGroupStatusTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(ProcessGroupStatusTable.class), "project", Expressions.constant(fields)))); }
Example #9
Source File: JvmMetricsTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(JvmMetricsTable.class), "project", Expressions.constant(fields)))); }
Example #10
Source File: ConnectionStatusTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(ConnectionStatusTable.class), "project", Expressions.constant(fields)))); }
Example #11
Source File: ConnectionStatusPredictionsTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(ConnectionStatusPredictionsTable.class), "project", Expressions.constant(fields)))); }
Example #12
Source File: ProvenanceTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(ProvenanceTable.class), "project", Expressions.constant(fields)))); }
Example #13
Source File: FlowFileTableScan.java From nifi with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result(physType, Blocks.toBlock( Expressions.call(table.getExpression(FlowFileTable.class), "project", Expressions.constant(fields)))); }
Example #14
Source File: FileTableScan.java From calcite with Apache License 2.0 | 5 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result( physType, Blocks.toBlock( Expressions.call(table.getExpression(FileTable.class), "project", Expressions.constant(fields)))); }
Example #15
Source File: PigToEnumerableConverter.java From calcite with Apache License 2.0 | 5 votes |
/** * {@inheritDoc} * * <p>This implementation does not actually execute the associated Pig Latin * script and return results. Instead it returns an empty * {@link org.apache.calcite.adapter.enumerable.EnumerableRel.Result} * in order to allow for testing and verification of every step of query * processing up to actual physical execution and result verification. * * <p>Next step is to invoke Pig from here, likely in local mode, have it * store results in a predefined file so they can be read here and returned as * a {@code Result} object. */ public Result implement(EnumerableRelImplementor implementor, Prefer pref) { final BlockBuilder list = new BlockBuilder(); final PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), rowType, pref.prefer(JavaRowFormat.ARRAY)); PigRel.Implementor impl = new PigRel.Implementor(); impl.visitChild(0, getInput()); Hook.QUERY_PLAN.run(impl.getScript()); // for script validation in tests list.add( Expressions.return_(null, Expressions.call( BuiltInMethod.EMPTY_ENUMERABLE.method))); return implementor.result(physType, list.toBlock()); }
Example #16
Source File: KylinEnumerableUnion.java From kylin-on-parquet-v2 with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { final BlockBuilder builder = new BlockBuilder(); Expression unionExp = null; for (Ord<RelNode> ord : Ord.zip(inputs)) { EnumerableRel input = (EnumerableRel) ord.e; final Result result = implementor.visitChild(this, ord.i, input, pref); Expression childExp = builder.append( "child" + ord.i, result.block); if (unionExp == null) { unionExp = childExp; } else { unionExp = createUnionExpression(unionExp, childExp, result.format == JavaRowFormat.ARRAY); } } builder.add(unionExp); final PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), pref.prefer(JavaRowFormat.CUSTOM)); return implementor.result(physType, builder.toBlock()); }
Example #17
Source File: OLAPTableScan.java From kylin-on-parquet-v2 with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { context.setReturnTupleInfo(rowType, columnRowType); String execFunction = genExecFunc(); PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), JavaRowFormat.ARRAY); MethodCallExpression exprCall = Expressions.call(table.getExpression(OLAPTable.class), execFunction, implementor.getRootExpression(), Expressions.constant(context.id)); return implementor.result(physType, Blocks.toBlock(exprCall)); }
Example #18
Source File: ExpressionCompiler.java From attic-apex-malhar with Apache License 2.0 | 5 votes |
/** * Create quasi-Java expression from given {@link RexNode} * * @param node Expression in the form of {@link RexNode} * @param inputRowType Input Data type to expression in the form of {@link RelDataType} * @param outputRowType Output data type of expression in the form of {@link RelDataType} * * @return Returns quasi-Java expression */ public String getExpression(RexNode node, RelDataType inputRowType, RelDataType outputRowType) { final RexProgramBuilder programBuilder = new RexProgramBuilder(inputRowType, rexBuilder); programBuilder.addProject(node, null); final RexProgram program = programBuilder.getProgram(); final BlockBuilder builder = new BlockBuilder(); final JavaTypeFactory javaTypeFactory = (JavaTypeFactory)rexBuilder.getTypeFactory(); final RexToLixTranslator.InputGetter inputGetter = new RexToLixTranslator.InputGetterImpl(ImmutableList .of(Pair.<Expression, PhysType>of(Expressions.variable(Object[].class, "inputValues"), PhysTypeImpl.of(javaTypeFactory, inputRowType, JavaRowFormat.ARRAY, false)))); final Function1<String, RexToLixTranslator.InputGetter> correlates = new Function1<String, RexToLixTranslator.InputGetter>() { public RexToLixTranslator.InputGetter apply(String a0) { throw new UnsupportedOperationException(); } }; final List<Expression> list = RexToLixTranslator.translateProjects(program, javaTypeFactory, builder, PhysTypeImpl.of(javaTypeFactory, outputRowType, JavaRowFormat.ARRAY, false), null, inputGetter, correlates); for (int i = 0; i < list.size(); i++) { Statement statement = Expressions.statement(list.get(i)); builder.add(statement); } return finalizeExpression(builder.toBlock(), inputRowType); }
Example #19
Source File: RexNodeToJavaCodeCompiler.java From streamline with Apache License 2.0 | 5 votes |
private BlockBuilder compileToBlock(final RexProgram program, ParameterExpression context_, ParameterExpression outputValues_) { RelDataType inputRowType = program.getInputRowType(); final BlockBuilder builder = new BlockBuilder(); final JavaTypeFactoryImpl javaTypeFactory = new JavaTypeFactoryImpl(rexBuilder.getTypeFactory().getTypeSystem()); final RexToLixTranslator.InputGetter inputGetter = new RexToLixTranslator.InputGetterImpl( ImmutableList.of( Pair.<Expression, PhysType>of( Expressions.field(context_, BuiltInMethod.CONTEXT_VALUES.field), PhysTypeImpl.of(javaTypeFactory, inputRowType, JavaRowFormat.ARRAY, false)))); final Function1<String, RexToLixTranslator.InputGetter> correlates = new Function1<String, RexToLixTranslator.InputGetter>() { public RexToLixTranslator.InputGetter apply(String a0) { throw new UnsupportedOperationException(); } }; final Expression root = Expressions.field(context_, BuiltInMethod.CONTEXT_ROOT.field); final List<Expression> list = RexToLixTranslator.translateProjects(program, javaTypeFactory, builder, null, root, inputGetter, correlates); for (int i = 0; i < list.size(); i++) { builder.add( Expressions.statement( Expressions.assign( Expressions.arrayIndex(outputValues_, Expressions.constant(i)), list.get(i)))); } return builder; }
Example #20
Source File: QuarkTableScan.java From quark with Apache License 2.0 | 5 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result( physType, Blocks.toBlock( Expressions.call(table.getExpression(QuarkTable.class), "project", Expressions.constant(QuarkEnumerator.identityList( getRowType().getFieldCount()))))); }
Example #21
Source File: OLAPTableScan.java From kylin with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { context.setReturnTupleInfo(rowType, columnRowType); String execFunction = genExecFunc(); PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), JavaRowFormat.ARRAY); MethodCallExpression exprCall = Expressions.call(table.getExpression(OLAPTable.class), execFunction, implementor.getRootExpression(), Expressions.constant(context.id)); return implementor.result(physType, Blocks.toBlock(exprCall)); }
Example #22
Source File: OLAPJoinRel.java From kylin with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { context.setReturnTupleInfo(rowType, columnRowType); PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferArray()); RelOptTable factTable = context.firstTableScan.getTable(); MethodCallExpression exprCall = Expressions.call(factTable.getExpression(OLAPTable.class), "executeOLAPQuery", implementor.getRootExpression(), Expressions.constant(context.id)); return implementor.result(physType, Blocks.toBlock(exprCall)); }
Example #23
Source File: QuarkTileScan.java From quark with Apache License 2.0 | 5 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), pref.preferArray()); return implementor.result( physType, Blocks.toBlock( Expressions.call(table.getExpression(QuarkTileTable.class), "project", Expressions.constant( QuarkEnumerator.identityList(getRowType().getFieldCount()))))); }
Example #24
Source File: KylinEnumerableUnion.java From kylin with Apache License 2.0 | 5 votes |
@Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { final BlockBuilder builder = new BlockBuilder(); Expression unionExp = null; for (Ord<RelNode> ord : Ord.zip(inputs)) { EnumerableRel input = (EnumerableRel) ord.e; final Result result = implementor.visitChild(this, ord.i, input, pref); Expression childExp = builder.append( "child" + ord.i, result.block); if (unionExp == null) { unionExp = childExp; } else { unionExp = createUnionExpression(unionExp, childExp, result.format == JavaRowFormat.ARRAY); } } builder.add(unionExp); final PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), getRowType(), pref.prefer(JavaRowFormat.CUSTOM)); return implementor.result(physType, builder.toBlock()); }
Example #25
Source File: MongoToEnumerableConverter.java From calcite with Apache License 2.0 | 4 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { // Generates a call to "find" or "aggregate", depending upon whether // an aggregate is present. // // ((MongoTable) schema.getTable("zips")).find( // "{state: 'CA'}", // "{city: 1, zipcode: 1}") // // ((MongoTable) schema.getTable("zips")).aggregate( // "{$filter: {state: 'CA'}}", // "{$group: {_id: '$city', c: {$sum: 1}, p: {$sum: "$pop"}}") final BlockBuilder list = new BlockBuilder(); final MongoRel.Implementor mongoImplementor = new MongoRel.Implementor(); mongoImplementor.visitChild(0, getInput()); int aggCount = 0; int findCount = 0; String project = null; String filter = null; for (Pair<String, String> op : mongoImplementor.list) { if (op.left == null) { ++aggCount; } if (op.right.startsWith("{$match:")) { filter = op.left; ++findCount; } if (op.right.startsWith("{$project:")) { project = op.left; ++findCount; } } final RelDataType rowType = getRowType(); final PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), rowType, pref.prefer(JavaRowFormat.ARRAY)); final Expression fields = list.append("fields", constantArrayList( Pair.zip(MongoRules.mongoFieldNames(rowType), new AbstractList<Class>() { @Override public Class get(int index) { return physType.fieldClass(index); } @Override public int size() { return rowType.getFieldCount(); } }), Pair.class)); final Expression table = list.append("table", mongoImplementor.table.getExpression( MongoTable.MongoQueryable.class)); List<String> opList = Pair.right(mongoImplementor.list); final Expression ops = list.append("ops", constantArrayList(opList, String.class)); Expression enumerable = list.append("enumerable", Expressions.call(table, MongoMethod.MONGO_QUERYABLE_AGGREGATE.method, fields, ops)); if (CalciteSystemProperty.DEBUG.value()) { System.out.println("Mongo: " + opList); } Hook.QUERY_PLAN.run(opList); list.add( Expressions.return_(null, enumerable)); return implementor.result(physType, list.toBlock()); }
Example #26
Source File: ElasticsearchToEnumerableConverter.java From dk-fitting with Apache License 2.0 | 4 votes |
public Result implement(EnumerableRelImplementor implementor, Prefer pref) { final ElasticsearchRelNode.Implementor esImplementor = new ElasticsearchRelNode.Implementor(); esImplementor.visitChild(0, getInput()); List<String> listField = esImplementor.getListField(); List<String> listField2 = new ArrayList<String>(); for (String field : listField){ //数据处理函数expr$0 转为lower.fieldName listField2.add(field); } ElasticsearchTable esTable = esImplementor.elasticsearchTable; final RelDataType rowType2 = esImplementor.elasticsearchTable.getRowType2(); final List<String> fieldNames1 = rowType2.getFieldNames(); //得到输出顺序 PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), rowType2, pref.prefer(JavaRowFormat.ARRAY)); final RelDataType rowType = esImplementor.elasticsearchTable.getRowType(); PhysType physType2 = PhysTypeImpl.of(implementor.getTypeFactory(), rowType, pref.prefer(JavaRowFormat.ARRAY)); // esTable.setOutNames(fieldNames1); List<String> fieldNames = ElasticsearchRules.elasticsearchFieldNames(rowType2); List<ElasticSearchFieldType> typeList = new ArrayList<ElasticSearchFieldType>(); for(int i = 0 ; i < fieldNames.size(); i++){ Class type = physType.fieldClass(i); String typeName = type.toString().substring(type.toString().lastIndexOf(".") + 1).toLowerCase(); if("integer".equals(typeName)){ typeName = "int"; } typeList.add(ElasticSearchFieldType.of(typeName)); } boolean oneColumFlag = false; if(typeList.size() == 1){ oneColumFlag = true; } TwoTuple<List<Object>, List<Object[]>> listTwoTuple = esTable.find(typeList,listField,oneColumFlag); // List<Object[]> resultList = esTable.find(typeList, oneColumFlag); ConstantExpression constant = oneColumFlag ? Expressions.constant(listTwoTuple.first.toArray()) : Expressions.constant(listTwoTuple.second.toArray()); Result result = implementor.result(physType2, Blocks.toBlock(Expressions.call(BuiltInMethod.AS_ENUMERABLE2.method, constant))); return result; }
Example #27
Source File: JdbcToEnumerableConverter.java From calcite with Apache License 2.0 | 4 votes |
private void generateGet(EnumerableRelImplementor implementor, PhysType physType, BlockBuilder builder, ParameterExpression resultSet_, int i, Expression target, Expression calendar_, SqlDialect.CalendarPolicy calendarPolicy) { final Primitive primitive = Primitive.ofBoxOr(physType.fieldClass(i)); final RelDataType fieldType = physType.getRowType().getFieldList().get(i).getType(); final List<Expression> dateTimeArgs = new ArrayList<>(); dateTimeArgs.add(Expressions.constant(i + 1)); SqlTypeName sqlTypeName = fieldType.getSqlTypeName(); boolean offset = false; switch (calendarPolicy) { case LOCAL: dateTimeArgs.add(calendar_); break; case NULL: // We don't specify a calendar at all, so we don't add an argument and // instead use the version of the getXXX that doesn't take a Calendar break; case DIRECT: sqlTypeName = SqlTypeName.ANY; break; case SHIFT: switch (sqlTypeName) { case TIMESTAMP: case DATE: offset = true; } break; } final Expression source; switch (sqlTypeName) { case DATE: case TIME: case TIMESTAMP: source = Expressions.call( getMethod(sqlTypeName, fieldType.isNullable(), offset), Expressions.<Expression>list() .append( Expressions.call(resultSet_, getMethod2(sqlTypeName), dateTimeArgs)) .appendIf(offset, getTimeZoneExpression(implementor))); break; case ARRAY: final Expression x = Expressions.convert_( Expressions.call(resultSet_, jdbcGetMethod(primitive), Expressions.constant(i + 1)), java.sql.Array.class); source = Expressions.call(BuiltInMethod.JDBC_ARRAY_TO_LIST.method, x); break; default: source = Expressions.call( resultSet_, jdbcGetMethod(primitive), Expressions.constant(i + 1)); } builder.add( Expressions.statement( Expressions.assign( target, source))); // [CALCITE-596] If primitive type columns contain null value, returns null // object if (primitive != null) { builder.add( Expressions.ifThen( Expressions.call(resultSet_, "wasNull"), Expressions.statement( Expressions.assign(target, Expressions.constant(null))))); } }
Example #28
Source File: SparkToEnumerableConverter.java From calcite with Apache License 2.0 | 4 votes |
public SparkRel.Result result(PhysType physType, BlockStatement blockStatement) { return new SparkRel.Result(physType, blockStatement); }
Example #29
Source File: ElasticsearchToEnumerableConverter.java From calcite with Apache License 2.0 | 4 votes |
@Override public Result implement(EnumerableRelImplementor relImplementor, Prefer prefer) { final BlockBuilder block = new BlockBuilder(); final ElasticsearchRel.Implementor implementor = new ElasticsearchRel.Implementor(); implementor.visitChild(0, getInput()); final RelDataType rowType = getRowType(); final PhysType physType = PhysTypeImpl.of(relImplementor.getTypeFactory(), rowType, prefer.prefer(JavaRowFormat.ARRAY)); final Expression fields = block.append("fields", constantArrayList( Pair.zip(ElasticsearchRules.elasticsearchFieldNames(rowType), new AbstractList<Class>() { @Override public Class get(int index) { return physType.fieldClass(index); } @Override public int size() { return rowType.getFieldCount(); } }), Pair.class)); final Expression table = block.append("table", implementor.table .getExpression(ElasticsearchTable.ElasticsearchQueryable.class)); final Expression ops = block.append("ops", Expressions.constant(implementor.list)); final Expression sort = block.append("sort", constantArrayList(implementor.sort, Pair.class)); final Expression groupBy = block.append("groupBy", Expressions.constant(implementor.groupBy)); final Expression aggregations = block.append("aggregations", constantArrayList(implementor.aggregations, Pair.class)); final Expression mappings = block.append("mappings", Expressions.constant(implementor.expressionItemMap)); final Expression offset = block.append("offset", Expressions.constant(implementor.offset)); final Expression fetch = block.append("fetch", Expressions.constant(implementor.fetch)); Expression enumerable = block.append("enumerable", Expressions.call(table, ElasticsearchMethod.ELASTICSEARCH_QUERYABLE_FIND.method, ops, fields, sort, groupBy, aggregations, mappings, offset, fetch)); block.add(Expressions.return_(null, enumerable)); return relImplementor.result(physType, block.toBlock()); }
Example #30
Source File: GeodeToEnumerableConverter.java From calcite with Apache License 2.0 | 4 votes |
/** * {@inheritDoc} * * @param implementor GeodeImplementContext */ @Override public Result implement(EnumerableRelImplementor implementor, Prefer pref) { // travers all relations form this to the scan leaf final GeodeImplementContext geodeImplementContext = new GeodeImplementContext(); ((GeodeRel) getInput()).implement(geodeImplementContext); final RelDataType rowType = getRowType(); // PhysType is Enumerable Adapter class that maps SQL types (getRowType) // with physical Java types (getJavaTypes()) final PhysType physType = PhysTypeImpl.of( implementor.getTypeFactory(), rowType, pref.prefer(JavaRowFormat.ARRAY)); final List<Class> physFieldClasses = new AbstractList<Class>() { public Class get(int index) { return physType.fieldClass(index); } public int size() { return rowType.getFieldCount(); } }; // Expression meta-program for calling the GeodeTable.GeodeQueryable#query // method form the generated code final BlockBuilder blockBuilder = new BlockBuilder().append( Expressions.call( geodeImplementContext.table.getExpression(GeodeTable.GeodeQueryable.class), GEODE_QUERY_METHOD, // fields constantArrayList(Pair.zip(geodeFieldNames(rowType), physFieldClasses), Pair.class), // selected fields constantArrayList(toListMapPairs(geodeImplementContext.selectFields), Pair.class), // aggregate functions constantArrayList( toListMapPairs(geodeImplementContext.oqlAggregateFunctions), Pair.class), constantArrayList(geodeImplementContext.groupByFields, String.class), constantArrayList(geodeImplementContext.whereClause, String.class), constantArrayList(geodeImplementContext.orderByFields, String.class), Expressions.constant(geodeImplementContext.limitValue))); return implementor.result(physType, blockBuilder.toBlock()); }