public class GUIDHelper extends Base
A persistence GUID must at minimum reflect the partition-id and a monotonically increasing partition-version that could be used to determine, given a set of GUIDs representing the same partition, a total ordering of the GUIDs over time.
Modifier and Type | Class and Description |
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static class |
GUIDHelper.GUIDResolver
Resolver used during a recovery to discover the newest available GUID for a given partition.
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Base.LoggingWriter, Base.StackFrame
Constructor and Description |
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GUIDHelper() |
Modifier and Type | Method and Description |
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static String |
generateGUID(int nPartition, long lVersion, long ldt, Member member)
Generate and return a new GUID for the specified partition.
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static int |
getMemberId(String sGUID)
Parse the specified GUID and return the originating member-id.
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static int |
getPartition(String sGUID)
Parse the specified GUID and return the partition-id.
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static long |
getServiceJoinTime(String sGUID)
Parse the specified GUID and return the service join time.
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static long |
getVersion(String sGUID)
Parse the specified GUID and return the partition-version.
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static void |
main(String[] asArg)
Utility that outputs information about a given GUID.
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static String |
parseAttribute(String sGUID, int id)
Return the specified (0-based) attribute from the GUID.
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static String[] |
resolveNewest(Collection<String> colGUID, int cPartitions)
Return a list of the newest GUID for each partition, indexed by the partition-id.
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static boolean |
validateGUID(String sGUID)
Validate the given GUID.
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azzert, azzert, azzert, azzertFailed, breakLines, breakLines, capitalize, checkNotEmpty, checkNotNull, checkRange, computeSafeWaitTime, decimalValue, dup, dup, ensureBigDecimal, ensureClassLoader, ensureRuntimeException, ensureRuntimeException, equals, equalsDeep, err, err, err, err, err, escape, formatDateTime, getCallerStackFrame, getCommonMonitor, getCommonMonitor, getCommonMonitor, getContextClassLoader, getContextClassLoader, getDeepMessage, getErr, getLastSafeTimeMillis, getLog, getMaxDecDigits, getMaxHexDigits, getOriginalException, getOut, getRandom, getRandomBinary, getRandomBinary, getRandomString, getSafeTimeMillis, getStackFrame, getStackFrames, getStackTrace, getStackTrace, getThreadFactory, getTimeZone, getUpTimeMillis, hashCode, hexValue, indentString, indentString, isDecimal, isHex, isLogEcho, isOctal, log, log, log, log, log, makeInteger, makeLong, makeThread, mod, mod, octalValue, out, out, out, out, out, pad, parseBandwidth, parseBandwidth, parseDelimitedString, parseHex, parseHex, parseMemorySize, parseMemorySize, parsePercentage, parseTime, parseTime, parseTimeNanos, parseTimeNanos, printStackTrace, randomize, randomize, randomize, read, read, read, read, read, read, read, replace, setErr, setLog, setLogEcho, setOut, sleep, toBandwidthString, toBandwidthString, toCharEscape, toCrc, toCrc, toCrc, toCrc, toCrc, toDecString, toDelimitedString, toDelimitedString, toDelimitedString, toDelimitedString, toHex, toHex, toHexDump, toHexEscape, toHexEscape, toHexEscape, toHexEscape, toHexString, toMemorySizeString, toMemorySizeString, toQuotedCharEscape, toQuotedStringEscape, toSqlString, toString, toString, toStringEscape, toUnicodeEscape, trace, trace, trace, trace, trace, trace, trace, trace, trace, truncateString, truncateString, wait
public static String generateGUID(int nPartition, long lVersion, long ldt, Member member)
nPartition
- the partition to return a GUID forlVersion
- the creation version of the partitionldt
- the creation timestamp; informational onlymember
- the member generating the GUID; informational onlypublic static boolean validateGUID(String sGUID)
sGUID
- the GUID to validatepublic static int getPartition(String sGUID)
sGUID
- the GUID to return the partition-id forpublic static long getVersion(String sGUID)
sGUID
- the GUID to return the partition-version forpublic static long getServiceJoinTime(String sGUID)
sGUID
- the GUID used to return the service join timepublic static int getMemberId(String sGUID)
sGUID
- the GUID to return the originating member-id forpublic static String[] resolveNewest(Collection<String> colGUID, int cPartitions)
colGUID
- the collection of GUIDs to resolvecPartitions
- the partition-countpublic static String parseAttribute(String sGUID, int id)
sGUID
- the GUIDid
- the (0-based) attribute indexpublic static void main(String[] asArg)
asArg
- command line arguments