public class MultiExtractor extends AbstractCompositeExtractor
List of extracted
values.
Common scenarios for using the MultiExtractor involve the
DistinctValues or
GroupAggregator
aggregators, that allow clients to collect all distinct combinations of a
given set of attributes or collect and run additional aggregation against
the corresponding groups of entries.
ExternalizableHelper.DecoratedMultiBufferReadBuffer, ExternalizableHelper.DefaultObjectStreamFactory, ExternalizableHelper.FormatAwareCompressor, ExternalizableHelper.IntDecoratedObject, ExternalizableHelper.Shielded, ExternalizableHelper.ShieldedDataOutputStream, ExternalizableHelper.ShieldedInputStream, ExternalizableHelper.ShieldedObjectOutputStream, ExternalizableHelper.ShieldedOutputStream, ExternalizableHelper.SimpleXmlBeanClassCache, ExternalizableHelper.Stats, ExternalizableHelper.XmlBeanClassCacheBase.LoggingWriter, Base.StackFramem_aExtractorKEY, m_nTarget, m_sNameCanon, VALUECONVERTER_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_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 |
|---|
MultiExtractor()
Default constructor (necessary for the ExternalizableLite interface).
|
MultiExtractor(String sNames)
Construct a MultiExtractor for a specified method name list.
|
MultiExtractor(ValueExtractor[] aExtractor)
Construct a MultiExtractor.
|
| Modifier and Type | Method and Description |
|---|---|
int |
compareEntries(QueryMap.Entry entry1,
QueryMap.Entry entry2)
Compare two entries based on the rules specified by
Comparator. |
static ValueExtractor[] |
createExtractors(String sNames)
Parse a comma-delimited sequence of method names and instantiate
a corresponding array of
ValueExtractor objects. |
Object |
extract(Object oTarget)
Extract a collection of values from the passed object using the underlying
array of ValueExtractor objects.
|
List |
extractFromEntry(Map.Entry entry)
Extract a collection of values from the passed entry using the underlying
array of ValueExtractor objects.
|
List |
extractOriginalFromEntry(MapTrigger.Entry entry)
Extract the value from the "original value" of the passed Entry object
or the key (if targeted).
|
equals, getExtractors, hashCode, readExternal, readExternal, toString, writeExternal, writeExternalcompare, getCanonicalName, getTarget, isCanonicallyEquatableasBinary, calculatePackedLength, calculatePackedLength, checkObjectInputFilter, convertUTF, decodeExpiry, decorate, decorate, decorate, decorate, decorate, decorateBinary, encodeExpiry, ensureSerializer, extractIntDecoration, fromBinary, fromBinary, fromBinary, fromBinary, fromBinary, fromBinary, fromByteArray, fromByteArray, getClass, 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, writeXmlSerializablecountBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString, toBytes, toBytes, toBytes, toBytes, toInt, toInt, toLongazzert, 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, getProcessRandom, 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, 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, waitclone, finalize, getClass, notify, notifyAll, wait, wait, waitandThen, apply, applyAsDouble, applyAsInt, applyAsLong, compose, fromKey, identity, identityCast, ofandThen, composecomparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLongpublic MultiExtractor()
public MultiExtractor(ValueExtractor[] aExtractor)
aExtractor - the ValueExtractor arraypublic MultiExtractor(String sNames)
sNames - a comma-delimited sequence of method names which results
in a MultiExtractor that is based on a corresponding
array of ValueExtractor objects; individual
array elements will be either ReflectionExtractor
or ChainedExtractor objectspublic Object extract(Object oTarget)
extract in interface ValueExtractorextract in class AbstractExtractoroTarget - an Object to retrieve the collection of values fromList containing the extracted values
or null if the target object itself is nullpublic List extractFromEntry(Map.Entry entry)
extractFromEntry in class AbstractExtractorentry - an entry to retrieve the collection of values fromList containing the extracted valuespublic List extractOriginalFromEntry(MapTrigger.Entry entry)
AbstractExtractorAbstractExtractor.extractFromEntry(java.util.Map.Entry) method.extractOriginalFromEntry in class AbstractExtractorentry - an Entry object whose original value should be used to
extract the desired value frompublic int compareEntries(QueryMap.Entry entry1, QueryMap.Entry entry2)
Comparator.
If possible, use the extract method to optimize the value extraction process.
This method is expected to be implemented by Comparator wrappers,
such as ChainedComparator and InverseComparator,
which simply pass on this invocation to the wrapped Comparator objects
if they too implement this interface, or to invoke their default
compare method passing the actual objects (not the extracted values)
obtained from the extractor using the passed entries.
This interface is also expected to be implemented by ValueExtractor implementations that implement the Comparator interface. It is expected that in most cases, the Comparator wrappers will eventually terminate at (i.e. delegate to) ValueExtractors that also implement this interface.
compareEntries in interface QueryMapComparatorcompareEntries in class AbstractExtractorentry1 - the first entry to compare values from; read-onlyentry2 - the second entry to compare values from; read-onlypublic static ValueExtractor[] createExtractors(String sNames)
ValueExtractor objects. Individual
array elements will be either ReflectionExtractor or
ChainedExtractor objects.sNames - a comma-delimited sequence of method namesValueExtractor objects