Package com.tangosol.util.extractor

Class CompositeUpdater

java.lang.Object

com.tangosol.util.Base

com.tangosol.util.extractor.CompositeUpdater

All Implemented Interfaces:

ExternalizableLite, PortableObject, ValueManipulator, ValueUpdater, Serializable

public class CompositeUpdater
extends Base
implements ValueUpdater, ValueManipulator, ExternalizableLite, PortableObject

A ValueUpdater implementation based on an extractor-updater pair that could also be used as a ValueManipulator.

Author:

gg 2005.10.31

See Also:

ChainedExtractor, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.tangosol.util.Base

Base.LoggingWriter

Field Summary

Fields

Modifier and Type	Field	Description
protected ValueExtractor	m_extractor	The ValueExtractor part.
protected ValueUpdater	m_updater	The ValueUpdater part.

Fields inherited from class com.tangosol.util.Base

DEFAULT_LOAD_FACTOR, LOG_ALWAYS, LOG_CONFIG, LOG_DEBUG, LOG_ERR, LOG_INFO, LOG_MAX, LOG_MIN, LOG_QUIET, LOG_WARN, POWER_0, POWER_G, POWER_K, POWER_M, POWER_T, UNIT_D, UNIT_H, UNIT_M, UNIT_MS, UNIT_NS, UNIT_S, UNIT_US

Constructor Summary

Constructors

Constructor	Description
CompositeUpdater()	Default constructor (necessary for the ExternalizableLite interface).
CompositeUpdater(ValueExtractor extractor, ValueUpdater updater)	Construct a CompositeUpdater based on the specified extractor and updater.
CompositeUpdater(String sName)	Construct a CompositeUpdater for a specified method name sequence.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
ValueExtractor	getExtractor()	Retrieve the ValueExtractor part.
ValueUpdater	getUpdater()	Retrieve the ValueUpdater part.
int	hashCode()
void	readExternal(PofReader in)	Restore the contents of a user type instance by reading its state using the specified PofReader object.
void	readExternal(DataInput in)	Restore the contents of this object by loading the object's state from the passed DataInput object.
String	toString()	Return a human-readable description for this CompositeUpdater.
void	update(Object oTarget, Object oValue)	Update the state of the passed target object using the passed value.
void	writeExternal(PofWriter out)	Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
void	writeExternal(DataOutput out)	Save the contents of this object by storing the object's state into the passed DataOutput object.

Methods inherited from class com.tangosol.util.Base

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, getProcessRandom, getRandom, getRandomBinary, getRandomBinary, getRandomString, getSafeTimeMillis, getStackFrame, getStackFrames, getStackTrace, getStackTrace, getStackTrace, getThreadFactory, getTimeZone, getUpTimeMillis, hashCode, hexValue, indentString, indentString, isDecimal, isHex, isLogEcho, isOctal, log, log, log, log, log, makeInteger, makeLong, makeThread, mergeArray, mergeBooleanArray, mergeByteArray, mergeCharArray, mergeDoubleArray, mergeFloatArray, mergeIntArray, mergeLongArray, mod, mod, newHashMap, newHashMap, newHashSet, newHashSet, 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, wait

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

m_extractor

protected ValueExtractor m_extractor

The ValueExtractor part.

m_updater

protected ValueUpdater m_updater

The ValueUpdater part.

Constructor Detail

CompositeUpdater

public CompositeUpdater()

Default constructor (necessary for the ExternalizableLite interface).

CompositeUpdater

public CompositeUpdater(ValueExtractor extractor,
                        ValueUpdater updater)

Construct a CompositeUpdater based on the specified extractor and updater.

Note: the extractor and updater here are not symmetrical in nature: the extractor is used to "drill-down" to the target object, while the updater will operate on that extracted object.

Parameters:

extractor - the ValueExtractor

updater - the ValueUpdater

CompositeUpdater

public CompositeUpdater(String sName)

Construct a CompositeUpdater for a specified method name sequence.

For example: "getAddress.setZip" method name will indicate that the "getAddress()" method should be used to extract an Address object, which will then be used by the "setZip(String)" call.

Parameters:

sName - a dot-delimited sequence of N method names which results in a CompositeUpdater that is based on an chain of (N-1) UniversalExtractor objects and a single UniversalUpdater.

Method Detail

update

public void update(Object oTarget,
                   Object oValue)

Update the state of the passed target object using the passed value. For intrinsic types, the specified value is expected to be a standard wrapper type in the same manner that reflection works; for example, an int value would be passed as a java.lang.Integer.

Specified by:

update in interface ValueUpdater

Parameters:

oTarget - the Object to update the state of

oValue - the new value to update the state with

getExtractor

public ValueExtractor getExtractor()

Retrieve the ValueExtractor part.

Specified by:

getExtractor in interface ValueManipulator

Returns:

the ValueExtractor

getUpdater

public ValueUpdater getUpdater()

Retrieve the ValueUpdater part.

Specified by:

getUpdater in interface ValueManipulator

Returns:

the ValueUpdater

toString

public String toString()

Return a human-readable description for this CompositeUpdater.

Overrides:

toString in class Object

Returns:

a String description of the CompositeUpdater

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

readExternal

public void readExternal(DataInput in)
                  throws IOException

Restore the contents of this object by loading the object's state from the passed DataInput object.

Specified by:

readExternal in interface ExternalizableLite

Parameters:

in - the DataInput stream to read data from in order to restore the state of this object

Throws:

IOException - if an I/O exception occurs

NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into

writeExternal

public void writeExternal(DataOutput out)
                   throws IOException

Save the contents of this object by storing the object's state into the passed DataOutput object.

Specified by:

writeExternal in interface ExternalizableLite

Parameters:

out - the DataOutput stream to write the state of this object to

Throws:

IOException - if an I/O exception occurs

readExternal

public void readExternal(PofReader in)
                  throws IOException

Restore the contents of a user type instance by reading its state using the specified PofReader object.

Specified by:

readExternal in interface PortableObject

Parameters:

in - the PofReader from which to read the object's state

Throws:

IOException - if an I/O error occurs

writeExternal

public void writeExternal(PofWriter out)
                   throws IOException

Save the contents of a POF user type instance by writing its state using the specified PofWriter object.

Specified by:

writeExternal in interface PortableObject

Parameters:

out - the PofWriter to which to write the object's state

Throws:

IOException - if an I/O error occurs