public class DeserializationAccelerator extends AbstractExtractor implements IndexAwareExtractor, ExternalizableLite, PortableObject
IndexAwareExtractor
implementation that is used to create a ForwardOnlyMapIndex
, which in turn is used for deserialization optimization.
Below is an example how to use this feature to optimize deserialization for BinaryEntry.getValue()
calls:
NamedCache cache = ...; cache.addIndex(new DeserializationAccelerator( IdentityExtractor.INSTANCE), false, null);There are two ways the DeserializationAccelerator could be used: pro-active (default) and on-demand. In the pro-active mode, the underlying
ForwardOnlyMapIndex
is populated every time the index is rebuilt or updated. In the on-demand mode, the ForwardOnlyMapIndex
stores the values only when they are requested
.ExternalizableHelper.DecoratedMultiBufferReadBuffer, ExternalizableHelper.DefaultObjectStreamFactory, ExternalizableHelper.FormatAwareCompressor, ExternalizableHelper.IntDecoratedObject, ExternalizableHelper.Shielded, ExternalizableHelper.ShieldedDataOutputStream, ExternalizableHelper.ShieldedInputStream, ExternalizableHelper.ShieldedObjectOutputStream, ExternalizableHelper.ShieldedOutputStream, ExternalizableHelper.SimpleXmlBeanClassCache, ExternalizableHelper.Stats, ExternalizableHelper.XmlBeanClassCache
Base.LoggingWriter, Base.StackFrame
Modifier and Type | Field and Description |
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protected ValueExtractor |
m_extractor
The underlying extractor.
|
protected boolean |
m_fLazy
The "lazy" flag.
|
KEY, m_nTarget, VALUE
CONVERTER_FROM_BINARY, CONVERTER_STRIP_INTDECO, CONVERTER_TO_BINARY, DECO_APP_1, DECO_APP_2, DECO_APP_3, DECO_CUSTOM, DECO_EXPIRY, DECO_ID_MAX, DECO_ID_MIN, DECO_JCACHE, DECO_JCACHE_SYNTHETIC, DECO_MEMCACHED, DECO_PUSHREP, DECO_QUEUE_METADATA, DECO_RSVD_1, DECO_RSVD_2, DECO_STORE, DECO_TOPLINK, DECO_TX, DECO_VALUE, DECO_WLS, EMPTY_BINARY_ARRAY, FMT_B_ARRAY, FMT_BIN_DECO, FMT_BIN_EXT_DECO, FMT_BINARY, FMT_BOOLEAN, FMT_BYTE, FMT_DECIMAL, FMT_DOUBLE, FMT_EXT, FMT_FLOAT, FMT_IDO, FMT_INT, FMT_INTEGER, FMT_LONG, FMT_NONE, FMT_NULL, FMT_OBJ_EXT, FMT_OBJ_SER, FMT_OPT, FMT_OPT_DOUBLE, FMT_OPT_INT, FMT_OPT_LONG, FMT_SHORT, FMT_STRING, FMT_UNKNOWN, FMT_XML_BEAN, FMT_XML_SER, FORCE_RESOLVING_STREAMS, MAX_DECO_HEADER_BYTES, PROPERTY_CONFIG, s_streamfactory, TRINT_DOMAIN_SPAN, TRINT_MAX_VALUE, TRINT_MAX_VARIANCE, USE_POF_STREAMS, USE_XMLBEAN_CLASS_CACHE, XMLBEAN_CLASS_CACHE
Constructor and Description |
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DeserializationAccelerator()
Construct the DeserializationAccelerator.
|
DeserializationAccelerator(ValueExtractor extractor)
Construct the DeserializationAccelerator.
|
DeserializationAccelerator(ValueExtractor extractor, boolean fOnDemand)
Construct the DeserializationAccelerator.
|
Modifier and Type | Method and Description |
---|---|
MapIndex |
createIndex(boolean fOrdered, Comparator comparator, Map mapIndex, BackingMapContext ctx)
Create an index and associate it with the corresponding extractor.
|
MapIndex |
destroyIndex(Map mapIndex)
Destroy an existing index and remove it from the given map of indexes.
|
boolean |
equals(Object o) |
Object |
extract(Object oTarget)
Using a DeserializationAccelerator to extract values in not supported.
|
int |
hashCode() |
void |
readExternal(DataInput in)
Restore the contents of this object by loading the object's state from the passed DataInput object.
|
void |
readExternal(PofReader in)
Restore the contents of a user type instance by reading its state using the specified PofReader object.
|
String |
toString()
Return a human-readable description for this DeserializationAccelerator.
|
void |
writeExternal(DataOutput out)
Save the contents of this object by storing the object's state into the passed DataOutput object.
|
void |
writeExternal(PofWriter out)
Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
|
compare, compareEntries, extractFromEntry, extractOriginalFromEntry, getTarget
asBinary, calculatePackedLength, calculatePackedLength, convertUTF, decodeExpiry, decorate, decorate, decorate, decorate, decorate, decorateBinary, encodeExpiry, ensureSerializer, extractIntDecoration, fromBinary, fromBinary, fromBinary, fromByteArray, fromByteArray, getDecoration, getDecoration, getDecorations, getDeltaCompressor, getInputStream, getNewObjectInput, getObjectInput, getObjectOutput, getObjectStreamFactory, getOutputStream, getShieldedOutputStream, getStreamFormat, getUndecorated, getUndecorated, isDecorated, isDecorated, isIntDecorated, isIntDecorated, isResolving, isSerializable, isSerializerCompatible, isVersionCompatible, isVersionCompatible, loadClass, loadResource, main, makeTrint, readBigDecimal, readBigInteger, readBooleanArray, readByteArray, readCollection, readDate, readDoubleArray, readExternalizableLite, readExternalizableLite, readFloatArray, readInt, readInt, readIntArray2d, readLong, readLong, readMap, readMap, readObject, readObject, readSafeUTF, readSafeUTF, readSerializable, readSerializable, readStringArray, readTime, readTimestamp, readTrint, readUnsignedTrint, readUTF, readXmlBean, readXmlSerializable, readXmlSerializable, realize, removeIntDecoration, removeIntDecoration, replace, reportIncompatibleSerializers, setObjectStreamFactory, toBinary, toBinary, toByteArray, toByteArray, toByteArray, toLiteBinary, toLong, undecorate, undecorate, validateBufferSize, writeBigDecimal, writeBigInteger, writeBooleanArray, writeByteArray, writeCollection, writeDate, writeDoubleArray, writeExternalizableLite, writeFloatArray, writeInt, writeInt, writeIntArray2d, writeLong, writeLong, writeMap, writeObject, writeSafeUTF, writeSafeUTF, writeSerializable, writeStringArray, writeTime, writeTimestamp, writeTrint, writeTrint, writeUTF, writeXmlBean, writeXmlSerializable
countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString, toBytes, toBytes, toBytes, toBytes, toInt, toInt, toLong
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
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
getExtractor
andThen, apply, applyAsDouble, applyAsInt, applyAsLong, compose, identity, identityCast, of
andThen, compose
comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong
protected ValueExtractor m_extractor
protected boolean m_fLazy
public DeserializationAccelerator()
public DeserializationAccelerator(ValueExtractor extractor)
extractor
- the extractor used by this extractor to create a ForwardOnlyMapIndex
; note that the created index will be associated with this extractor in the given index map; passing null is equivalent to using the IdentityExtractor
public DeserializationAccelerator(ValueExtractor extractor, boolean fOnDemand)
extractor
- the extractor used by this extractor to create a ForwardOnlyMapIndex
; note that the created index will be associated with this extractor in the given index map; passing null is equivalent to using the IdentityExtractor
fOnDemand
- if true, the forward index will be created "on-demand" as the values are attempted to be accessed; otherwise the forward index is populated proactively (default)public MapIndex createIndex(boolean fOrdered, Comparator comparator, Map mapIndex, BackingMapContext ctx)
createIndex
in interface IndexAwareExtractor
fOrdered
- true iff the contents of the indexed information should be ordered; false otherwisecomparator
- the Comparator object which imposes an ordering of entries in the index contents; or null if the entries' values natural ordering should be usedmapIndex
- Map<ValueExtractor, MapIndex> to be updated with the created indexctx
- The context
the index is associate with.public MapIndex destroyIndex(Map mapIndex)
destroyIndex
in interface IndexAwareExtractor
mapIndex
- map<ValueExtractor, MapIndex> to be updated by removing the index being destroyedpublic Object extract(Object oTarget)
extract
in interface ValueExtractor
extract
in class AbstractExtractor
oTarget
- the object to extract the value fromUnsupportedOperationException
- alwayspublic void readExternal(DataInput in) throws IOException
readExternal
in interface ExternalizableLite
in
- the DataInput stream to read data from in order to restore the state of this objectIOException
- if an I/O exception occursNotActiveException
- if the object is not in its initial state, and therefore cannot be deserialized intopublic void writeExternal(DataOutput out) throws IOException
writeExternal
in interface ExternalizableLite
out
- the DataOutput stream to write the state of this object toIOException
- if an I/O exception occurspublic void readExternal(PofReader in) throws IOException
readExternal
in interface PortableObject
in
- the PofReader from which to read the object's stateIOException
- if an I/O error occurspublic void writeExternal(PofWriter out) throws IOException
writeExternal
in interface PortableObject
out
- the PofWriter to which to write the object's stateIOException
- if an I/O error occurspublic boolean equals(Object o)
equals
in interface Comparator
equals
in class Object