RealDistinctScalarAggregateStatistics (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
- - org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
  - - org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics
    - - org.apache.derby.impl.sql.execute.rts.RealDistinctScalarAggregateStatistics

All Implemented Interfaces:

ResultSetStatistics, XPLAINable
```
public class RealDistinctScalarAggregateStatistics
extends RealScalarAggregateStatistics
```
ResultSetStatistics implemenation for DistinctScalarAggregateResultSet.

Field Summary
- Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
  closeTime, constructorTime, inspectDesc, inspectNum, inspectOverall, nextTime, numOpens, openTime, optimizerEstimatedCost, optimizerEstimatedRowCount, rowsFiltered, rowsSeen
- Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
  indent, resultSetNumber, sourceDepth, subIndent
- Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics
  childResultSetStatistics, indexKeyOptimization, rowsInput

Constructor Summary

Constructors
Constructor	Description
`RealDistinctScalarAggregateStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, int rowsInput, double optimizerEstimatedRowCount, double optimizerEstimatedCost, ResultSetStatistics childResultSetStatistics)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(XPLAINVisitor visitor)`	This method gets called to let a visitor visit this XPLAINable object.
`java.util.Vector<ResultSetStatistics>`	`getChildren()`	Get the objects to be displayed when this tree object is expanded.
`java.lang.String`	`getNodeName()`	Format for display, a name for this node.
`java.lang.String`	`getRSXplainDetails()`
`java.lang.String`	`getScanStatisticsText(java.lang.String tableName, int depth)`	Return information on the scan nodes from the statement execution plan as a String.
`java.lang.String`	`getStatementExecutionPlanText(int depth)`	Return the statement execution plan as a String.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
dumpEstimatedCosts, dumpTimeStats, getChildrenTime, getEstimatedRowCount, getNodeOn, getNodeTime, getResultSetTimingsDescriptor, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
initFormatInfo

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics
getResultSetDescriptor, getRSXplainType

- Constructor Detail
  - RealDistinctScalarAggregateStatistics
```
public RealDistinctScalarAggregateStatistics(int numOpens,
                                             int rowsSeen,
                                             int rowsFiltered,
                                             long constructorTime,
                                             long openTime,
                                             long nextTime,
                                             long closeTime,
                                             int resultSetNumber,
                                             int rowsInput,
                                             double optimizerEstimatedRowCount,
                                             double optimizerEstimatedCost,
                                             ResultSetStatistics childResultSetStatistics)
```
- Method Detail
  - getStatementExecutionPlanText
```
public java.lang.String getStatementExecutionPlanText(int depth)
```
    Return the statement execution plan as a String.
    
    Specified by:
    
    getStatementExecutionPlanText in interface ResultSetStatistics
    
    Overrides:
    
    getStatementExecutionPlanText in class RealScalarAggregateStatistics
    
    Parameters:
    
    depth - Indentation level.
    
    Returns:
    
    String The statement execution plan as a String.
  - getScanStatisticsText
```
public java.lang.String getScanStatisticsText(java.lang.String tableName,
                                              int depth)
```
    Return information on the scan nodes from the statement execution plan as a String.
    
    Specified by:
    
    getScanStatisticsText in interface ResultSetStatistics
    
    Overrides:
    
    getScanStatisticsText in class RealScalarAggregateStatistics
    
    Parameters:
    
    depth - Indentation level.
    
    tableName - if not NULL then print information for this table only
    
    Returns:
    
    String The information on the scan nodes from the statement execution plan as a String.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class RealScalarAggregateStatistics
  - getChildren
```
public java.util.Vector<ResultSetStatistics> getChildren()
```
    Description copied from class: RealBasicNoPutResultSetStatistics
    
    Get the objects to be displayed when this tree object is expanded.
    The objects returned can be of any type, including addtional Inspectables.
    
    Overrides:
    
    getChildren in class RealScalarAggregateStatistics
    
    Returns:
    
    java.util.Vector A vector of objects.
  - getNodeName
```
public java.lang.String getNodeName()
```
    Format for display, a name for this node.
    
    Overrides:
    
    getNodeName in class RealScalarAggregateStatistics
  - accept
```
public void accept(XPLAINVisitor visitor)
```
    Description copied from interface: XPLAINable
    
    This method gets called to let a visitor visit this XPLAINable object. The general contract is to implement pre-order, depth-first traversal to produce a predictable traversal behaviour.
    
    Specified by:
    
    accept in interface XPLAINable
    
    Overrides:
    
    accept in class RealScalarAggregateStatistics
  - getRSXplainDetails
```
public java.lang.String getRSXplainDetails()
```
    Specified by:
    
    getRSXplainDetails in interface XPLAINable
    
    Overrides:
    
    getRSXplainDetails in class RealBasicNoPutResultSetStatistics

Class RealDistinctScalarAggregateStatistics

Field Summary

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics

Constructor Detail

RealDistinctScalarAggregateStatistics

Method Detail

getStatementExecutionPlanText

getScanStatisticsText

toString

getChildren

getNodeName

accept

getRSXplainDetails