Package org.incenp.obofoundry.sssom.extract

Class MappingSetSlotExtractor

java.lang.Object

org.incenp.obofoundry.sssom.extract.MappingSetSlotExtractor

All Implemented Interfaces:

IValueExtractor

public class MappingSetSlotExtractor
extends Object
implements IValueExtractor

Extracts the value of a slot from a mapping set object.

This is the extractor used by an expression of the form set.slot.SLOTNAME.

Field Summary

Fields

Modifier and Type	Field	Description
protected SlotExtractor<MappingSet>	slotExtractor

Constructor Summary

Constructors

Constructor	Description
MappingSetSlotExtractor(Slot<MappingSet> slot, int itemNo)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
Object	extract(MappingSet ms)	Extracts the desired value from the given mapping set.
Class<?>	getType()	Gets the type of the value that would be returned by IValueExtractor.extract(MappingSet).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

slotExtractor

protected SlotExtractor<MappingSet> slotExtractor

Constructor Details

MappingSetSlotExtractor

public MappingSetSlotExtractor(Slot<MappingSet> slot,
 int itemNo)

Creates a new instance.

Parameters:

slot - The mapping set slot to extract.

itemNo - The 0-based index of the value to extract. This is only meaningful if slot represents a multi-valued slot. A negative value is interpreted as an 1-based index starting from the last item.

Method Details

extract

public Object extract(MappingSet ms)

Description copied from interface: IValueExtractor

Extracts the desired value from the given mapping set.

Specified by:

extract in interface IValueExtractor

Parameters:

ms - The mapping set from which to extract the value.

Returns:

The desired value, or null if the set does not contain a value at the specified location.

getType

public Class<?> getType()

Description copied from interface: IValueExtractor

Gets the type of the value that would be returned by IValueExtractor.extract(MappingSet).

Specified by:

getType in interface IValueExtractor

Returns:

The actual Java class of the object representing the extracted value.