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com.tangosol.util.extractor
Class AbstractCompositeExtractor

java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.extractor.AbstractExtractor
com.tangosol.util.extractor.AbstractCompositeExtractor

All Implemented Interfaces:

ExternalizableLite, PortableObject, QueryMapComparator, ValueExtractor, java.io.Serializable, java.util.Comparator

Direct Known Subclasses:

ChainedExtractor, ComparisonValueExtractor, MultiExtractor

public abstract class AbstractCompositeExtractor

extends AbstractExtractor

implements ExternalizableLite, PortableObject

Abstract super class for ValueExtractor implementations that are based on an underlying array of ValueExtractor objects.

Since:

Coherence 3.2

Author:

gg 2006.02.08

Field Summary

protected ValueExtractor[]

m_aExtractor The ValueExtractor array.

Fields inherited from class com.tangosol.util.extractor.AbstractExtractor

KEY, m_nTarget, VALUE

Constructor Summary

AbstractCompositeExtractor()
Default constructor

AbstractCompositeExtractor(ValueExtractor[] aExtractor)
Construct a AbstractCompositeExtractor based on the specified ValueExtractor array.

Method Summary

boolean	equals(java.lang.Object o) Compare the AbstractCompositeExtractor with another object to determine equality.
ValueExtractor[]	getExtractors() Obtain the ValueExtractor array.
int	hashCode() Determine a hash value for the MultiExtractor object according to the general Object.hashCode() contract.
void	readExternal(java.io.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.
java.lang.String	toString() Return a human-readable description for this ValueExtractor.
void	writeExternal(java.io.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.

Methods inherited from class com.tangosol.util.extractor.AbstractExtractor

compare, compareEntries, extract, extractFromEntry, extractOriginalFromEntry

Methods inherited from class com.tangosol.util.BitHelper

countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString

Field Detail

m_aExtractor

protected ValueExtractor[] m_aExtractor

The ValueExtractor array.

Constructor Detail

AbstractCompositeExtractor

public AbstractCompositeExtractor()

Default constructor

AbstractCompositeExtractor

public AbstractCompositeExtractor(ValueExtractor[] aExtractor)

Construct a AbstractCompositeExtractor based on the specified ValueExtractor array.

Parameters:

aExtractor - the ValueExtractor array

Method Detail

getExtractors

public ValueExtractor[] getExtractors()

Obtain the ValueExtractor array.

Returns:

the ValueExtractor array

equals

public boolean equals(java.lang.Object o)

Compare the AbstractCompositeExtractor with another object to determine equality. Two AbstractCompositeExtractor objects are considered equal iff they belong to the same class and their underlying ValueExtractor arrays are deep-equal.

Specified by:

equals in interface ValueExtractor

Specified by:

equals in interface java.util.Comparator

Parameters:

o - the reference object with which to compare

Returns:

true iff this AbstractCompositeExtractor and the passed object are equivalent

See Also:

Object.equals(java.lang.Object), Object.hashCode()

hashCode

public int hashCode()

Determine a hash value for the MultiExtractor object according to the general Object.hashCode() contract.

Specified by:

hashCode in interface ValueExtractor

Returns:

an integer hash value for this ValueExtractor object

toString

public java.lang.String toString()

Return a human-readable description for this ValueExtractor.

Specified by:

toString in interface ValueExtractor

Returns:

a String description of the ValueExtractor

readExternal

public void readExternal(java.io.DataInput in)
                  throws java.io.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:

java.io.IOException - if an I/O exception occurs

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

writeExternal

public void writeExternal(java.io.DataOutput out)
                   throws java.io.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:

java.io.IOException - if an I/O exception occurs

readExternal

public void readExternal(PofReader in)
                  throws java.io.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:

java.io.IOException - if an I/O error occurs

writeExternal

public void writeExternal(PofWriter out)
                   throws java.io.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:

java.io.IOException - if an I/O error occurs

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