com.atlassian.instrumentation.operations.registry

Class OpSnapshotComparator

java.lang.Object

com.atlassian.instrumentation.operations.registry.OpSnapshotComparator

All Implemented Interfaces:

Comparator<OpSnapshot>

public abstract class OpSnapshotComparator
extends Object
implements Comparator<OpSnapshot>

A comparator helper for comparing OpSnapshot objects

Field Summary

Fields

Modifier and Type	Field and Description
static OpSnapshotComparator	BY_DEFAULT The default is BY_TIME_TAKEN.
static OpSnapshotComparator	BY_INVOCATION_COUNT This will sort in highest invocation count / highest time taken / highest result set size order / lowest name order
static OpSnapshotComparator	BY_NAME This will sort in lowest name / highest time taken / highest invocation count / highest result set size order
static OpSnapshotComparator	BY_RESULT_SET_SIZE This will sort in highest result set size / highest invocation count / highest time taken / lowest name order
static OpSnapshotComparator	BY_TIME_TAKEN This will sort in highest time taken / highest invocation count / highest result set size order / lowest name order

Constructor Summary

Constructors

Constructor and Description
OpSnapshotComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(OpSnapshot opSnapshot1, OpSnapshot opSnapshot2) Compares 2 OpSnapshot values to each other.
protected abstract int	compareThese(OpSnapshot opSnapshot1, OpSnapshot opSnapshot2) When this is called the null checks have been made and the objects have been cast.
protected int	sortByInvocation(OpSnapshot opSnapshot1, OpSnapshot opSnapshot2) This will sort in highest invocation count / highest time taken / highest result set size order / lowest name order
protected int	sortByName(OpSnapshot opSnapshot1, OpSnapshot opSnapshot2) This will sort in lowest name / highest time taken / highest invocation count / highest result set size order
protected int	sortByResultSetSize(OpSnapshot opSnapshot1, OpSnapshot opSnapshot2) This will sort in highest result set size / highest invocation count / highest time taken / lowest name order
protected int	sortByTimeTaken(OpSnapshot opSnapshot1, OpSnapshot opSnapshot2) This will sort in highest time taken / highest invocation count / highest result set size order / lowest name order

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

BY_NAME

public static final OpSnapshotComparator BY_NAME

This will sort in lowest name / highest time taken / highest invocation count / highest result set size order

BY_TIME_TAKEN

public static final OpSnapshotComparator BY_TIME_TAKEN

This will sort in highest time taken / highest invocation count / highest result set size order / lowest name order

BY_INVOCATION_COUNT

public static final OpSnapshotComparator BY_INVOCATION_COUNT

This will sort in highest invocation count / highest time taken / highest result set size order / lowest name order

BY_RESULT_SET_SIZE

public static final OpSnapshotComparator BY_RESULT_SET_SIZE

This will sort in highest result set size / highest invocation count / highest time taken / lowest name order

BY_DEFAULT

public static final OpSnapshotComparator BY_DEFAULT

The default is BY_TIME_TAKEN.

This will sort in highest time taken / highest invocation count / highest result set size order / lowest name order

Constructor Detail

OpSnapshotComparator

public OpSnapshotComparator()

Method Detail

compare

public int compare(OpSnapshot opSnapshot1,
                   OpSnapshot opSnapshot2)

Compares 2 OpSnapshot values to each other.

This WILL throw InvalidArgumentException any of the objects are null

This WILL throw ClassCastException of the two objects are not OpSnapshot objects

Specified by:

compare in interface Comparator<OpSnapshot>

Parameters:

opSnapshot1 - - MUST be a non null OpSnapshot object

opSnapshot2 - - MUST be a non null OpSnapshot object

Returns:

-1, 0 or 1 as per the Comparator interface

compareThese

protected abstract int compareThese(OpSnapshot opSnapshot1,
                                    OpSnapshot opSnapshot2)

When this is called the null checks have been made and the objects have been cast.

Parameters:

opSnapshot1 - - MUST be a non null OpSnapshot object

opSnapshot2 - - MUST be a non null OpSnapshot object

Returns:

-1, 0 or 1 as per the Comparator interface

sortByName

protected int sortByName(OpSnapshot opSnapshot1,
                         OpSnapshot opSnapshot2)

This will sort in lowest name / highest time taken / highest invocation count / highest result set size order

Parameters:

opSnapshot1 - - MUST be a non null OpSnapshot object

opSnapshot2 - - MUST be a non null OpSnapshot object

Returns:

-1, 0 or 1 as per the Comparator interface

sortByTimeTaken

protected int sortByTimeTaken(OpSnapshot opSnapshot1,
                              OpSnapshot opSnapshot2)

This will sort in highest time taken / highest invocation count / highest result set size order / lowest name order

Parameters:

opSnapshot1 - - MUST be a non null OpSnapshot object

opSnapshot2 - - MUST be a non null OpSnapshot object

Returns:

-1, 0 or 1 as per the Comparator interface

sortByInvocation

protected int sortByInvocation(OpSnapshot opSnapshot1,
                               OpSnapshot opSnapshot2)

This will sort in highest invocation count / highest time taken / highest result set size order / lowest name order

Parameters:

opSnapshot1 - - MUST be a non null OpSnapshot object

opSnapshot2 - - MUST be a non null OpSnapshot object

Returns:

-1, 0 or 1 as per the Comparator interface

sortByResultSetSize

protected int sortByResultSetSize(OpSnapshot opSnapshot1,
                                  OpSnapshot opSnapshot2)

This will sort in highest result set size / highest invocation count / highest time taken / lowest name order

Parameters:

opSnapshot1 - - MUST be a non null OpSnapshot object

opSnapshot2 - - MUST be a non null OpSnapshot object

Returns:

-1, 0 or 1 as per the Comparator interface