org.modeshape.jcr.query

Class QueryResults.Statistics

java.lang.Object

org.modeshape.jcr.query.QueryResults.Statistics

All Implemented Interfaces:

Serializable, Comparable<QueryResults.Statistics>

Enclosing interface:

QueryResults

@Immutable
public static class QueryResults.Statistics
extends Object
implements Comparable<QueryResults.Statistics>, Serializable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static QueryResults.Statistics	EMPTY_STATISTICS

Constructor Summary

Constructors

Constructor and Description
Statistics()
Statistics(long planningNanos)
Statistics(long planningNanos, long optimizationNanos, long resultFormulationNanos, long executionNanos)

Method Summary

Modifier and Type	Method and Description
int	compareTo(QueryResults.Statistics that)
long	getExecutionTime(TimeUnit unit) Get the time required to execute the query.
long	getOptimizationTime(TimeUnit unit) Get the time required to determine or select a (more) optimal plan.
long	getPlanningTime(TimeUnit unit) Get the time required to come up with the canonical plan.
long	getResultFormulationTime(TimeUnit unit) Get the time required to formulate the structure of the results.
long	getTotalTime(TimeUnit unit) Get the time required to execute the query.
protected void	readable(long nanos, StringBuilder sb)
String	toString()
protected long	totalTime()
QueryResults.Statistics	withExecutionTime(long executionNanos) Create a new statistics object that has the supplied execution time.
QueryResults.Statistics	withExecutionTime(long execution, TimeUnit unit) Create a new statistics object that has the supplied execution time.
QueryResults.Statistics	withOptimizationTime(long optimizationNanos) Create a new statistics object that has the supplied optimization time.
QueryResults.Statistics	withOptimizationTime(long optimization, TimeUnit unit) Create a new statistics object that has the supplied optimization time.
QueryResults.Statistics	withPlanningTime(long planningNanos) Create a new statistics object that has the supplied planning time.
QueryResults.Statistics	withPlanningTime(long planning, TimeUnit unit) Create a new statistics object that has the supplied planning time.
QueryResults.Statistics	withResultsFormulationTime(long resultFormulationNanos) Create a new statistics object that has the supplied result formulation time.
QueryResults.Statistics	withResultsFormulationTime(long resultFormulation, TimeUnit unit) Create a new statistics object that has the supplied result formulation time.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_STATISTICS

protected static final QueryResults.Statistics EMPTY_STATISTICS

Constructor Detail

Statistics

public Statistics()

Statistics

public Statistics(long planningNanos)

Statistics

public Statistics(long planningNanos,
                  long optimizationNanos,
                  long resultFormulationNanos,
                  long executionNanos)

Method Detail

getPlanningTime

public long getPlanningTime(TimeUnit unit)

Get the time required to come up with the canonical plan.

Parameters:

unit - the time unit that should be used

Returns:

the time to plan, in the desired units

Throws:

IllegalArgumentException - if the unit is null

getOptimizationTime

public long getOptimizationTime(TimeUnit unit)

Get the time required to determine or select a (more) optimal plan.

Parameters:

unit - the time unit that should be used

Returns:

the time to determine an optimal plan, in the desired units

Throws:

IllegalArgumentException - if the unit is null

getResultFormulationTime

public long getResultFormulationTime(TimeUnit unit)

Get the time required to formulate the structure of the results.

Parameters:

unit - the time unit that should be used

Returns:

the time to formulate the results, in the desired units

Throws:

IllegalArgumentException - if the unit is null

getExecutionTime

public long getExecutionTime(TimeUnit unit)

Get the time required to execute the query.

Parameters:

unit - the time unit that should be used

Returns:

the time to execute the query, in the desired units

Throws:

IllegalArgumentException - if the unit is null

getTotalTime

public long getTotalTime(TimeUnit unit)

Get the time required to execute the query.

Parameters:

unit - the time unit that should be used

Returns:

the time to execute the query, in the desired units

Throws:

IllegalArgumentException - if the unit is null

totalTime

protected long totalTime()

withPlanningTime

public QueryResults.Statistics withPlanningTime(long planningNanos)

Create a new statistics object that has the supplied planning time.

Parameters:

planningNanos - the number of nanoseconds required by planning

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the time value is negative

withOptimizationTime

public QueryResults.Statistics withOptimizationTime(long optimizationNanos)

Create a new statistics object that has the supplied optimization time.

Parameters:

optimizationNanos - the number of nanoseconds required by optimization

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the time value is negative

withResultsFormulationTime

public QueryResults.Statistics withResultsFormulationTime(long resultFormulationNanos)

Create a new statistics object that has the supplied result formulation time.

Parameters:

resultFormulationNanos - the number of nanoseconds required by result formulation

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the time value is negative

withExecutionTime

public QueryResults.Statistics withExecutionTime(long executionNanos)

Create a new statistics object that has the supplied execution time.

Parameters:

executionNanos - the number of nanoseconds required to execute the query

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the time value is negative

withPlanningTime

public QueryResults.Statistics withPlanningTime(long planning,
                                                TimeUnit unit)

Create a new statistics object that has the supplied planning time.

Parameters:

planning - the time required to plan the query

unit - the time unit

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the unit is null or if the time value is negative

withOptimizationTime

public QueryResults.Statistics withOptimizationTime(long optimization,
                                                    TimeUnit unit)

Create a new statistics object that has the supplied optimization time.

Parameters:

optimization - the time required by optimization

unit - the time unit

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the unit is null or if the time value is negative

withResultsFormulationTime

public QueryResults.Statistics withResultsFormulationTime(long resultFormulation,
                                                          TimeUnit unit)

Create a new statistics object that has the supplied result formulation time.

Parameters:

resultFormulation - the time required to formulate the results

unit - the time unit

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the unit is null or if the time value is negative

withExecutionTime

public QueryResults.Statistics withExecutionTime(long execution,
                                                 TimeUnit unit)

Create a new statistics object that has the supplied execution time.

Parameters:

execution - the time required to execute the query

unit - the time unit

Returns:

the new statistics object; never null

Throws:

IllegalArgumentException - if the unit is null or if the time value is negative

compareTo

public int compareTo(QueryResults.Statistics that)

Specified by:

compareTo in interface Comparable<QueryResults.Statistics>

toString

public String toString()

Overrides:

toString in class Object

readable

protected void readable(long nanos,
                        StringBuilder sb)