Class ExtractorProcessor

ExtractorProcessor is an IEntryProcessor implementations that extracts a value from an object cached in an IInvocableCache.

Inheritance

object

AbstractProcessor

ExtractorProcessor

Implements

IEntryProcessor

IPortableObject

Inherited Members

AbstractProcessor.ProcessAll(ICollection)

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: Tangosol.Util.Processor

Assembly: Coherence.dll

Syntax

public class ExtractorProcessor : AbstractProcessor, IEntryProcessor, IPortableObject

Remarks

A common usage pattern is:

cache.Invoke(key, new ExtractorProcessor(extractor));

which is functionally equivalent to the following operation:

extractor.Extract(cache[key]);

Constructors

ExtractorProcessor()

Default constructor.

Declaration

public ExtractorProcessor()

ExtractorProcessor(string)

Construct an ExtractorProcessor for a given member name.

Declaration

public ExtractorProcessor(string member)

Parameters

Type	Name	Description
string	member	A member name to make a ReflectionExtractor for; this parameter can also be a dot-delimited sequence of member names which would result in an ExtractorProcessor based on the ChainedExtractor that is based on an array of corresponding ReflectionExtractor objects.

ExtractorProcessor(IValueExtractor)

Construct an ExtractorProcessor based on the specified IValueExtractor.

Declaration

public ExtractorProcessor(IValueExtractor extractor)

Parameters

Type	Name	Description
IValueExtractor	extractor	An IValueExtractor object; passing null is equivalent to using the IdentityExtractor.

Fields

m_extractor

The underlying value extractor.

Declaration

protected IValueExtractor m_extractor

Field Value

Type	Description
IValueExtractor

Methods

Equals(object)

Compare the PropertyProcessor with another object to determine equality.

Declaration

public override bool Equals(object o)

Parameters

Type	Name	Description
object	o	The object to compare with.

Returns

Type	Description
bool	true iff this PropertyProcessor and the passed object are equivalent PropertyProcessor.

Overrides

object.Equals(object)

GetHashCode()

Determine a hash value for the PropertyProcessor object according to the general GetHashCode() contract.

Declaration

public override int GetHashCode()

Returns

Type	Description
int	An integer hash value for this PropertyProcessor object.

Overrides

object.GetHashCode()

Process(IInvocableCacheEntry)

Process an IInvocableCacheEntry.

Declaration

public override object Process(IInvocableCacheEntry entry)

Parameters

Type	Name	Description
IInvocableCacheEntry	entry	The IInvocableCacheEntry to process.

Returns

Type	Description
object	The result of the processing, if any.

Overrides

AbstractProcessor.Process(IInvocableCacheEntry)

ReadExternal(IPofReader)

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

Declaration

public virtual void ReadExternal(IPofReader reader)

Parameters

Type	Name	Description
IPofReader	reader	The IPofReader from which to read the object's state.

Exceptions

Type	Condition
IOException	If an I/O error occurs.

ToString()

Return a human-readable description for this PropertyProcessor.

Declaration

public override string ToString()

Returns

Type	Description
string	A String description of the PropertyProcessor.

Overrides

object.ToString()

WriteExternal(IPofWriter)

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

Declaration

public virtual void WriteExternal(IPofWriter writer)

Parameters

Type	Name	Description
IPofWriter	writer	The IPofWriter to which to write the object's state.

Exceptions

Type	Condition
IOException	If an I/O error occurs.

Implements

IEntryProcessor

IPortableObject