org.apache.tajo.plan.serder

Class LogicalNodeSerializer

java.lang.Object

org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

org.apache.tajo.plan.serder.LogicalNodeSerializer

All Implemented Interfaces:

LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

public class LogicalNodeSerializer
extends BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

It serializes a logical plan into a protobuf-based serialized bytes. In detail, it traverses all logical nodes in a postfix order. For each visiting node, it serializes the node and adds the serialized bytes into a list. Then, a list will contains a list of serialized nodes in a postfix order.

See Also:

LogicalNodeDeserializer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LogicalNodeSerializer.SerializeContext

Constructor Summary

Constructors

Constructor and Description
LogicalNodeSerializer()

Method Summary

Methods

Modifier and Type	Method and Description
PlanProto.ScanNode.Builder	buildScanNode(ScanNode scan)
static PlanProto.JoinType	convertJoinType(JoinType type)
static PlanProto.Target	convertTarget(Target target)
static PlanProto.NodeType	convertType(NodeType type)
static PlanProto.LogicalNodeTree	serialize(LogicalNode node) Serialize a logical plan into a protobuf-based serialized bytes.
LogicalNode	visitAlterTable(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, AlterTableNode node, Stack<LogicalNode> stack)
LogicalNode	visitAlterTablespace(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, AlterTablespaceNode node, Stack<LogicalNode> stack)
LogicalNode	visitCreateDatabase(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, CreateDatabaseNode node, Stack<LogicalNode> stack)
LogicalNode	visitCreateTable(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, CreateTableNode node, Stack<LogicalNode> stack)
LogicalNode	visitDistinctGroupby(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, DistinctGroupbyNode node, Stack<LogicalNode> stack)
LogicalNode	visitDropDatabase(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, DropDatabaseNode node, Stack<LogicalNode> stack)
LogicalNode	visitDropTable(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, DropTableNode node, Stack<LogicalNode> stack)
LogicalNode	visitEvalExpr(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, EvalExprNode exprEval, Stack<LogicalNode> stack)
LogicalNode	visitFilter(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, SelectionNode filter, Stack<LogicalNode> stack)
LogicalNode	visitGroupBy(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, GroupbyNode node, Stack<LogicalNode> stack)
LogicalNode	visitHaving(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, HavingNode having, Stack<LogicalNode> stack)
LogicalNode	visitInsert(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, InsertNode node, Stack<LogicalNode> stack)
LogicalNode	visitJoin(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, JoinNode join, Stack<LogicalNode> stack)
LogicalNode	visitLimit(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, LimitNode limit, Stack<LogicalNode> stack)
LogicalNode	visitPartitionedTableScan(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, PartitionedTableScanNode node, Stack<LogicalNode> stack)
LogicalNode	visitProjection(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, ProjectionNode projection, Stack<LogicalNode> stack)
LogicalNode	visitRoot(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, LogicalRootNode root, Stack<LogicalNode> stack)
LogicalNode	visitScan(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, ScanNode scan, Stack<LogicalNode> stack)
LogicalNode	visitSetSession(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, SetSessionNode node, Stack<LogicalNode> stack)
LogicalNode	visitSort(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, SortNode sort, Stack<LogicalNode> stack)
LogicalNode	visitTableSubQuery(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, TableSubQueryNode node, Stack<LogicalNode> stack)
LogicalNode	visitTruncateTable(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, TruncateTableNode node, Stack<LogicalNode> stack)
LogicalNode	visitUnion(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, UnionNode node, Stack<LogicalNode> stack)
LogicalNode	visitWindowAgg(LogicalNodeSerializer.SerializeContext context, LogicalPlan plan, LogicalPlan.QueryBlock block, WindowAggNode windowAgg, Stack<LogicalNode> stack)

Methods inherited from class org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor

postHook, preHook, visit, visit, visitExcept, visitIntersect, visitStoreTable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LogicalNodeSerializer

public LogicalNodeSerializer()

Method Detail

serialize

public static PlanProto.LogicalNodeTree serialize(LogicalNode node)

Serialize a logical plan into a protobuf-based serialized bytes.

Parameters:

node - LogicalNode to be serialized

Returns:

A list of serialized nodes

visitRoot

public LogicalNode visitRoot(LogicalNodeSerializer.SerializeContext context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    LogicalRootNode root,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitRoot in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitRoot in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitSetSession

public LogicalNode visitSetSession(LogicalNodeSerializer.SerializeContext context,
                          LogicalPlan plan,
                          LogicalPlan.QueryBlock block,
                          SetSessionNode node,
                          Stack<LogicalNode> stack)
                            throws PlanningException

Specified by:

visitSetSession in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitSetSession in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitEvalExpr

public LogicalNode visitEvalExpr(LogicalNodeSerializer.SerializeContext context,
                        LogicalPlan plan,
                        LogicalPlan.QueryBlock block,
                        EvalExprNode exprEval,
                        Stack<LogicalNode> stack)
                          throws PlanningException

Specified by:

visitEvalExpr in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitEvalExpr in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitProjection

public LogicalNode visitProjection(LogicalNodeSerializer.SerializeContext context,
                          LogicalPlan plan,
                          LogicalPlan.QueryBlock block,
                          ProjectionNode projection,
                          Stack<LogicalNode> stack)
                            throws PlanningException

Specified by:

visitProjection in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitProjection in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitLimit

public LogicalNode visitLimit(LogicalNodeSerializer.SerializeContext context,
                     LogicalPlan plan,
                     LogicalPlan.QueryBlock block,
                     LimitNode limit,
                     Stack<LogicalNode> stack)
                       throws PlanningException

Specified by:

visitLimit in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitLimit in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitWindowAgg

public LogicalNode visitWindowAgg(LogicalNodeSerializer.SerializeContext context,
                         LogicalPlan plan,
                         LogicalPlan.QueryBlock block,
                         WindowAggNode windowAgg,
                         Stack<LogicalNode> stack)
                           throws PlanningException

Specified by:

visitWindowAgg in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitWindowAgg in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitSort

public LogicalNode visitSort(LogicalNodeSerializer.SerializeContext context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    SortNode sort,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitSort in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitSort in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitHaving

public LogicalNode visitHaving(LogicalNodeSerializer.SerializeContext context,
                      LogicalPlan plan,
                      LogicalPlan.QueryBlock block,
                      HavingNode having,
                      Stack<LogicalNode> stack)
                        throws PlanningException

Specified by:

visitHaving in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitHaving in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitGroupBy

public LogicalNode visitGroupBy(LogicalNodeSerializer.SerializeContext context,
                       LogicalPlan plan,
                       LogicalPlan.QueryBlock block,
                       GroupbyNode node,
                       Stack<LogicalNode> stack)
                         throws PlanningException

Specified by:

visitGroupBy in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitGroupBy in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitDistinctGroupby

public LogicalNode visitDistinctGroupby(LogicalNodeSerializer.SerializeContext context,
                               LogicalPlan plan,
                               LogicalPlan.QueryBlock block,
                               DistinctGroupbyNode node,
                               Stack<LogicalNode> stack)
                                 throws PlanningException

Specified by:

visitDistinctGroupby in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitDistinctGroupby in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitFilter

public LogicalNode visitFilter(LogicalNodeSerializer.SerializeContext context,
                      LogicalPlan plan,
                      LogicalPlan.QueryBlock block,
                      SelectionNode filter,
                      Stack<LogicalNode> stack)
                        throws PlanningException

Specified by:

visitFilter in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitFilter in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitJoin

public LogicalNode visitJoin(LogicalNodeSerializer.SerializeContext context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    JoinNode join,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitJoin in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitJoin in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitUnion

public LogicalNode visitUnion(LogicalNodeSerializer.SerializeContext context,
                     LogicalPlan plan,
                     LogicalPlan.QueryBlock block,
                     UnionNode node,
                     Stack<LogicalNode> stack)
                       throws PlanningException

Specified by:

visitUnion in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitUnion in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitScan

public LogicalNode visitScan(LogicalNodeSerializer.SerializeContext context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    ScanNode scan,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitScan in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitScan in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

buildScanNode

public PlanProto.ScanNode.Builder buildScanNode(ScanNode scan)

visitPartitionedTableScan

public LogicalNode visitPartitionedTableScan(LogicalNodeSerializer.SerializeContext context,
                                    LogicalPlan plan,
                                    LogicalPlan.QueryBlock block,
                                    PartitionedTableScanNode node,
                                    Stack<LogicalNode> stack)
                                      throws PlanningException

Specified by:

visitPartitionedTableScan in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitPartitionedTableScan in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitTableSubQuery

public LogicalNode visitTableSubQuery(LogicalNodeSerializer.SerializeContext context,
                             LogicalPlan plan,
                             LogicalPlan.QueryBlock block,
                             TableSubQueryNode node,
                             Stack<LogicalNode> stack)
                               throws PlanningException

Specified by:

visitTableSubQuery in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitTableSubQuery in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitCreateTable

public LogicalNode visitCreateTable(LogicalNodeSerializer.SerializeContext context,
                           LogicalPlan plan,
                           LogicalPlan.QueryBlock block,
                           CreateTableNode node,
                           Stack<LogicalNode> stack)
                             throws PlanningException

Specified by:

visitCreateTable in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitCreateTable in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitDropTable

public LogicalNode visitDropTable(LogicalNodeSerializer.SerializeContext context,
                         LogicalPlan plan,
                         LogicalPlan.QueryBlock block,
                         DropTableNode node,
                         Stack<LogicalNode> stack)

Specified by:

visitDropTable in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitDropTable in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

visitAlterTablespace

public LogicalNode visitAlterTablespace(LogicalNodeSerializer.SerializeContext context,
                               LogicalPlan plan,
                               LogicalPlan.QueryBlock block,
                               AlterTablespaceNode node,
                               Stack<LogicalNode> stack)
                                 throws PlanningException

Specified by:

visitAlterTablespace in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitAlterTablespace in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitAlterTable

public LogicalNode visitAlterTable(LogicalNodeSerializer.SerializeContext context,
                          LogicalPlan plan,
                          LogicalPlan.QueryBlock block,
                          AlterTableNode node,
                          Stack<LogicalNode> stack)

Specified by:

visitAlterTable in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitAlterTable in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

visitTruncateTable

public LogicalNode visitTruncateTable(LogicalNodeSerializer.SerializeContext context,
                             LogicalPlan plan,
                             LogicalPlan.QueryBlock block,
                             TruncateTableNode node,
                             Stack<LogicalNode> stack)
                               throws PlanningException

Specified by:

visitTruncateTable in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitTruncateTable in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitInsert

public LogicalNode visitInsert(LogicalNodeSerializer.SerializeContext context,
                      LogicalPlan plan,
                      LogicalPlan.QueryBlock block,
                      InsertNode node,
                      Stack<LogicalNode> stack)
                        throws PlanningException

Specified by:

visitInsert in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitInsert in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitCreateDatabase

public LogicalNode visitCreateDatabase(LogicalNodeSerializer.SerializeContext context,
                              LogicalPlan plan,
                              LogicalPlan.QueryBlock block,
                              CreateDatabaseNode node,
                              Stack<LogicalNode> stack)
                                throws PlanningException

Specified by:

visitCreateDatabase in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitCreateDatabase in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

visitDropDatabase

public LogicalNode visitDropDatabase(LogicalNodeSerializer.SerializeContext context,
                            LogicalPlan plan,
                            LogicalPlan.QueryBlock block,
                            DropDatabaseNode node,
                            Stack<LogicalNode> stack)
                              throws PlanningException

Specified by:

visitDropDatabase in interface LogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Overrides:

visitDropDatabase in class BasicLogicalPlanVisitor<LogicalNodeSerializer.SerializeContext,LogicalNode>

Throws:

PlanningException

convertType

public static PlanProto.NodeType convertType(NodeType type)

convertJoinType

public static PlanProto.JoinType convertJoinType(JoinType type)

convertTarget

public static PlanProto.Target convertTarget(Target target)