Package com.sleepycat.je.utilint

INTERNAL: Misc utility classes, including some stat classes.

See: Description

Interface Summary

Interface	Description
DaemonRunner	An object capable of running (run/pause/shutdown/etc) a daemon thread.
DbCacheSizeRepEnv	Interface for opening a ReplicatedEnvironment from a JE standalone utility, DbCacheSize.
SizeofMarker	Special marker interface used by Sizeof when performing memory overhead calculations.
TaskCoordinator.StatDefs	Defines stats associated with the TaskCoordinator.
TestHook<T>	TestHook is used to induce testing behavior that can't be provoked externally.

Class Summary

Class	Description
ActiveTxnArrayStat	An array of active Txn stats.
Adler32	Adler32 checksum implementation.
Adler32.ChunkingAdler32
AtomicIntStat	A int JE stat that uses AtomicInteger to be thread safe.
AtomicLongComponent	A stat component based on an AtomicLong.
AtomicLongMapStat	A JE stat that maintains a map of individual values based on AtomicLong which can be looked up with a String key, and that returns results as a formatted string.
AtomicLongStat	A long JE stat that uses AtomicLong to be thread safe.
BaseStat<T>	The basic interface for accessing and clearing statistics for use in both standalone statistics and component statistics contained in a MapStat.
BitMap	Bitmap which supports indexing with long arguments.
BooleanStat	A boolean JE stat.
CmdUtil	Convenience methods for command line utilities.
CollectionUtils	Java Collection utilities.
ConfiguredRedirectHandler	Redirects logging messages to the owning environment's application configured handler, if one was specified through EnvironmentConfig.setLoggingHandler().
ConsoleRedirectHandler	Redirects logging messages to the owning environment's console handler, so that messages can be prefixed with an environment name.
CronScheduleParser	This class aims to parser EnvironmentConfig.VERIFY_SCHEDULE which is a cron-style expression.
DaemonThread	A daemon thread.
DatabaseUtil	Utils for use in the db package.
DbLsn	DbLsn is a class that operates on Log Sequence Numbers (LSNs).
DoubleExpMovingAvg	A double JE stat component generated from an exponential moving average over a specified time period of values supplied with associated times, to support averaging values that are generated at irregular intervals.
EventTrace	Internal class used for transient event tracing.
EventTrace.ExceptionEventTrace
FileRedirectHandler	Redirects logging messages to the the owning environment's file handler, so that messages can be prefixed with an environment name and sent to the correct logging file.
FileStoreInfo	Provides information about the file store associated with a specific file.
FloatStat	A Float JE stat.
FormatterRedirectHandler	Redirect the ConsoleHandler to use a specific Formatter.
HexFormatter
IntegralLongAvg
IntegralLongAvgStat	A long stat which represents a average whose value is Integral.
IntegralRateStat	A long stat which represents a rate whose value is Integral.
IntStat	An integer JE stat.
JarMain	Used as the main class for the manifest of the je.jar file, and so it is executed when running: java -jar je.jar.
JETaskCoordinator	The subclass that introduces tasks specific to JE.
JVMSystemUtils
LatencyPercentile	A long JE stat component that computes a percentile latency by tracking latency values in milliseconds.
LatencyPercentileMapStat	A JE stat that maintains a map of individual LatencyPercentile values which can be looked up with a String key, and that returns results as a formatted string.
LatencyPercentileStat	An long JE stat that computes a percentile latency by tracking latency values in milliseconds.
LoggerUtils	Logging Architecture =========================== JE uses the java.util.logging package.
LogVerifier	Verifies the checksums in the contents of a log file in a JE Environment.
LongArrayStat	A Long array JE stat.
LongAvg	A long JE stat component that computes an average value.
LongAvgMapStat	A JE stat that maintains a map of LongAvg values which can be looked up with a String key, and that returns results as a formatted string.
LongAvgRate	A long JE stat component generated from an exponential moving average over a specified time period of the rate of change in a long value over time.
LongAvgRateMapStat	A JE stat that maintains a map of individual LongAvgRate values which can be looked up with a String key, and that returns results as a formatted string.
LongAvgRateStat	A long JE stat generated from an exponential moving average over a specified time period of the rate of change in a value over time.
LongAvgStat	A long JE stat that computes the average of the values in the current time period.
LongDiffMapStat	A JE stat that maintains a map of individual LongDiffStat values which can be looked up with a String key, and that returns results as a formatted string.
LongDiffStat	A long JE stat component that computes the difference between another stat and a specified value.
LongMax	A long JE stat component that maintains a maximum value.
LongMaxMapStat	A JE stat that maintains a map of LongMax values which can be looked up with a String key, and that returns results as a formatted string.
LongMaxStat	A long stat which maintains a maximum value.
LongMaxZeroStat	For stats where the min value in the range is zero, so that sums, averages, etc.
LongMinStat	A long stat which maintains a minimum value.
LongStat	A long JE stat.
LSNStat	A long JE stat.
MapStat<T,C extends MapStatComponent<T,C>>	A base class for JE stats that map String keys to component statistics, and that return results as formatted strings.
MapStatComponent<T,C extends MapStatComponent<T,C>>	The interface for individual stat components included in a MapStat.
Matchpoint	This class writes out a log entry that can be used for replication syncup.
NanoTimeUtil	Utility class for dealing with special cases of System.nanoTime
NoClearAtomicLongStat	A version of AtomicLongStat that does not reset its value when cleared.
Pair<FIRST,SECOND>	Generic immutable pair, intended for grouping two data elements when a more specific class is unwarranted.
PollCondition	Utility class that permits a "poll based" waiting for a condition.
PropUtil	Convenience methods for handling JE properties.
RateLimitingLogger<T>	A simple logger used to limit the rate at which messages related to a specific object are logged to at most once within the configured time period.
Stat<T>	Base class for all JE statistics.
StatDefinition	Per-stat Metadata for JE statistics.
StatGroup	The Stats infrastructure provides context for JE statistics.
StatsAccumulator
StatWithValueType<T>	Stat base class for stats that want to advertise a return value of a particular type.
StoppableThread	A StoppableThread is a daemon that obeys the following mandates: - it sets the daemon property for the thread - an uncaught exception handler is always registered - the thread registers with the JE exception listener mechanism.
StoppableThreadFactory	Create a thread factory that returns threads that are legitimate StoppableThreads.
StringStat	A stat that saves a string; a way to save general information for later display and access.
TaskCoordinator	The base class that coordinates tasks via the distribution of permits to cooperating tasks or the application itself.
TaskCoordinator.Task	Represents a task that can request permits.
TestHookAdapter<T>
TestHookExecute	Execute a test hook if set.
Timestamp	Duplicate of java.sql.Timestamp which keeps our implementation constant in case the java.sql.Timestamp implementation changes incompatibly.
TinyHashSet<T>	TinyHashSet is used to optimize (for speed, not space) the case where a HashSet generally holds one or two elements.
TracerFormatter	Formatter for java.util.logging output.
VLSN

Enum Summary

Enum	Description
StatDefinition.StatType

Exception Summary

Exception	Description
InternalException	Some internal inconsistency exception.
RelatchRequiredException

Package com.sleepycat.je.utilint Description

INTERNAL: Misc utility classes, including some stat classes.