org.apache.tajo.plan.visitor

Class ExplainLogicalPlanVisitor

java.lang.Object

org.apache.tajo.plan.visitor.BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

org.apache.tajo.plan.visitor.ExplainLogicalPlanVisitor

All Implemented Interfaces:

LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

public class ExplainLogicalPlanVisitor
extends BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

It returns a list of node plan strings.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExplainLogicalPlanVisitor.Context
static class	ExplainLogicalPlanVisitor.DepthString

Constructor Summary

Constructors

Constructor and Description
ExplainLogicalPlanVisitor()

Method Summary

Methods

Modifier and Type	Method and Description
ExplainLogicalPlanVisitor.Context	getBlockPlanStrings(LogicalPlan plan, LogicalNode node)
static String	printDepthString(int maxDepth, ExplainLogicalPlanVisitor.DepthString planStr)
LogicalNode	visitCreateDatabase(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, CreateDatabaseNode node, Stack<LogicalNode> stack)
LogicalNode	visitDistinctGroupby(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, DistinctGroupbyNode node, Stack<LogicalNode> stack)
LogicalNode	visitDropDatabase(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, DropDatabaseNode node, Stack<LogicalNode> stack)
LogicalNode	visitExcept(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, ExceptNode node, Stack<LogicalNode> stack)
LogicalNode	visitFilter(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, SelectionNode node, Stack<LogicalNode> stack)
LogicalNode	visitGroupBy(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, GroupbyNode node, Stack<LogicalNode> stack)
LogicalNode	visitHaving(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, HavingNode node, Stack<LogicalNode> stack)
LogicalNode	visitInsert(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, InsertNode node, Stack<LogicalNode> stack)
LogicalNode	visitIntersect(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, IntersectNode node, Stack<LogicalNode> stack)
LogicalNode	visitJoin(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, JoinNode node, Stack<LogicalNode> stack)
LogicalNode	visitLimit(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, LimitNode node, Stack<LogicalNode> stack)
LogicalNode	visitPartitionedTableScan(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, PartitionedTableScanNode node, Stack<LogicalNode> stack)
LogicalNode	visitProjection(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, ProjectionNode node, Stack<LogicalNode> stack)
LogicalNode	visitRoot(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, LogicalRootNode node, Stack<LogicalNode> stack)
LogicalNode	visitScan(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, ScanNode node, Stack<LogicalNode> stack)
LogicalNode	visitSort(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, SortNode node, Stack<LogicalNode> stack)
LogicalNode	visitStoreTable(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, StoreTableNode node, Stack<LogicalNode> stack)
LogicalNode	visitTableSubQuery(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, TableSubQueryNode node, Stack<LogicalNode> stack)
LogicalNode	visitUnion(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, UnionNode node, Stack<LogicalNode> stack)
LogicalNode	visitWindowAgg(ExplainLogicalPlanVisitor.Context context, LogicalPlan plan, LogicalPlan.QueryBlock block, WindowAggNode node, Stack<LogicalNode> stack)

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

postHook, preHook, visit, visit, visitAlterTable, visitAlterTablespace, visitCreateTable, visitDropTable, visitEvalExpr, visitSetSession, visitTruncateTable

Methods inherited from class java.lang.Object

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

Constructor Detail

ExplainLogicalPlanVisitor

public ExplainLogicalPlanVisitor()

Method Detail

getBlockPlanStrings

public ExplainLogicalPlanVisitor.Context getBlockPlanStrings(@Nullable
                                                    LogicalPlan plan,
                                                    LogicalNode node)
                                                      throws PlanningException

Throws:

PlanningException

visitRoot

public LogicalNode visitRoot(ExplainLogicalPlanVisitor.Context context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    LogicalRootNode node,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitRoot in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitRoot in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitProjection

public LogicalNode visitProjection(ExplainLogicalPlanVisitor.Context context,
                          LogicalPlan plan,
                          LogicalPlan.QueryBlock block,
                          ProjectionNode node,
                          Stack<LogicalNode> stack)
                            throws PlanningException

Specified by:

visitProjection in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitProjection in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitLimit

public LogicalNode visitLimit(ExplainLogicalPlanVisitor.Context context,
                     LogicalPlan plan,
                     LogicalPlan.QueryBlock block,
                     LimitNode node,
                     Stack<LogicalNode> stack)
                       throws PlanningException

Specified by:

visitLimit in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitLimit in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitSort

public LogicalNode visitSort(ExplainLogicalPlanVisitor.Context context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    SortNode node,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitSort in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitSort in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitHaving

public LogicalNode visitHaving(ExplainLogicalPlanVisitor.Context context,
                      LogicalPlan plan,
                      LogicalPlan.QueryBlock block,
                      HavingNode node,
                      Stack<LogicalNode> stack)
                        throws PlanningException

Specified by:

visitHaving in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitHaving in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitGroupBy

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

Specified by:

visitGroupBy in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitGroupBy in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitWindowAgg

public LogicalNode visitWindowAgg(ExplainLogicalPlanVisitor.Context context,
                         LogicalPlan plan,
                         LogicalPlan.QueryBlock block,
                         WindowAggNode node,
                         Stack<LogicalNode> stack)
                           throws PlanningException

Specified by:

visitWindowAgg in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitWindowAgg in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitDistinctGroupby

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

Specified by:

visitDistinctGroupby in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitDistinctGroupby in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitFilter

public LogicalNode visitFilter(ExplainLogicalPlanVisitor.Context context,
                      LogicalPlan plan,
                      LogicalPlan.QueryBlock block,
                      SelectionNode node,
                      Stack<LogicalNode> stack)
                        throws PlanningException

Specified by:

visitFilter in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitFilter in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitJoin

public LogicalNode visitJoin(ExplainLogicalPlanVisitor.Context context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    JoinNode node,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitJoin in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitJoin in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitUnion

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

Specified by:

visitUnion in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitUnion in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitExcept

public LogicalNode visitExcept(ExplainLogicalPlanVisitor.Context context,
                      LogicalPlan plan,
                      LogicalPlan.QueryBlock block,
                      ExceptNode node,
                      Stack<LogicalNode> stack)
                        throws PlanningException

Specified by:

visitExcept in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitExcept in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitIntersect

public LogicalNode visitIntersect(ExplainLogicalPlanVisitor.Context context,
                         LogicalPlan plan,
                         LogicalPlan.QueryBlock block,
                         IntersectNode node,
                         Stack<LogicalNode> stack)
                           throws PlanningException

Specified by:

visitIntersect in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitIntersect in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitTableSubQuery

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

Specified by:

visitTableSubQuery in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitTableSubQuery in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitScan

public LogicalNode visitScan(ExplainLogicalPlanVisitor.Context context,
                    LogicalPlan plan,
                    LogicalPlan.QueryBlock block,
                    ScanNode node,
                    Stack<LogicalNode> stack)
                      throws PlanningException

Specified by:

visitScan in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitScan in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitPartitionedTableScan

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

Specified by:

visitPartitionedTableScan in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitPartitionedTableScan in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitStoreTable

public LogicalNode visitStoreTable(ExplainLogicalPlanVisitor.Context context,
                          LogicalPlan plan,
                          LogicalPlan.QueryBlock block,
                          StoreTableNode node,
                          Stack<LogicalNode> stack)
                            throws PlanningException

Specified by:

visitStoreTable in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitStoreTable in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitCreateDatabase

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

Specified by:

visitCreateDatabase in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitCreateDatabase in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitDropDatabase

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

Specified by:

visitDropDatabase in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitDropDatabase in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

visitInsert

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

Specified by:

visitInsert in interface LogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Overrides:

visitInsert in class BasicLogicalPlanVisitor<ExplainLogicalPlanVisitor.Context,LogicalNode>

Throws:

PlanningException

printDepthString

public static String printDepthString(int maxDepth,
                      ExplainLogicalPlanVisitor.DepthString planStr)