Class ChainedExtractor

Composite IValueExtractor implementation based on an array of extractors.

Inheritance

object

AbstractExtractor

AbstractCompositeExtractor

ChainedExtractor

Implements

IValueExtractor

IQueryCacheComparer

IComparer

IPortableObject

Inherited Members

AbstractCompositeExtractor.Extractors

AbstractCompositeExtractor.ReadExternal(IPofReader)

AbstractCompositeExtractor.WriteExternal(IPofWriter)

AbstractCompositeExtractor.Equals(object)

AbstractCompositeExtractor.GetHashCode()

AbstractCompositeExtractor.ToString()

AbstractCompositeExtractor.m_extractors

AbstractExtractor.Target

AbstractExtractor.Compare(object, object)

AbstractExtractor.CompareEntries(IQueryCacheEntry, IQueryCacheEntry)

AbstractExtractor.ExtractOriginalFromEntry(CacheEntry)

AbstractExtractor.VALUE

AbstractExtractor.KEY

AbstractExtractor.m_target

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: Tangosol.Util.Extractor

Assembly: Coherence.dll

Syntax

public class ChainedExtractor : AbstractCompositeExtractor, IValueExtractor, IQueryCacheComparer, IComparer, IPortableObject

Remarks

The extractors in the array are applied sequentially left-to-right, so a result of a previous extractor serves as a target object for a next one.

Constructors

ChainedExtractor()

Default constructor.

Declaration

public ChainedExtractor()

ChainedExtractor(string)

Construct a ChainedExtractor for a specified member name sequence.

Declaration

public ChainedExtractor(string member)

Parameters

Type	Name	Description
string	member	A dot-delimited sequence of member names which results in a ChainedExtractor that is based on an array of corresponding ReflectionExtractor objects.

ChainedExtractor(IValueExtractor, IValueExtractor)

Construct a ChainedExtractor based on two extractors.

Declaration

public ChainedExtractor(IValueExtractor extractor1, IValueExtractor extractor2)

Parameters

Type	Name	Description
IValueExtractor	extractor1	The IValueExtractor.
IValueExtractor	extractor2	The IValueExtractor.

ChainedExtractor(IValueExtractor[])

Construct a ChainedExtractor based on a specified IValueExtractor array.

Declaration

public ChainedExtractor(IValueExtractor[] extractors)

Parameters

Type	Name	Description
IValueExtractor[]	extractors	The IValueExtractor array.

Methods

Extract(object)

Extract the value from the passed object.

Declaration

public override object Extract(object target)

Parameters

Type	Name	Description
object	target	An object to retrieve the value from.

Returns

Type	Description
object	The extracted value as an object; null is an acceptable value.

Overrides

AbstractExtractor.Extract(object)

Remarks

The underlying extractors are applied sequentially, so a result of a previous extractor serves as a target object for a next one. A value of null prevents any further extractions and is returned immediately.

ExtractFromEntry(ICacheEntry)

Extract the value from the passed entry.

Declaration

public override object ExtractFromEntry(ICacheEntry entry)

Parameters

Type	Name	Description
ICacheEntry	entry	An Entry object to extract a desired value from

Returns

Type	Description
object	The extracted value

Overrides

AbstractExtractor.ExtractFromEntry(ICacheEntry)

Remarks

The underlying extractors are applied sequentially, so a result of a previous extractor serves as a target object for a next one. A value of

null

prevents any further extractions and is returned immediately.

Implements

IValueExtractor

IQueryCacheComparer

IComparer

IPortableObject