Package org.incenp.obofoundry.sssom.extract

Class SExpressionExtractor

java.lang.Object
org.incenp.obofoundry.sssom.extract.MappingValueExtractor
org.incenp.obofoundry.sssom.extract.SExpressionExtractor
All Implemented Interfaces:
IValueExtractor
public class SExpressionExtractor extends MappingValueExtractor
Extracts the canonical S-expression that represents a mapping.

This is used by expressions of the form mapping(N).special.sexpr.

  • Constructor Details

    • SExpressionExtractor

      public SExpressionExtractor(int mappingNo)
      Creates a new instance.
      Parameters:
      mappingNo - The 0-based index of the mapping from which to extract the S-expression, or (if negative) the 1-based index starting from the last mapping.

  • Method Details

    • extract

      public Object extract(Mapping mapping)
      Description copied from class: MappingValueExtractor
      Extracts the desired value from the given mapping.
      Specified by:
      extract in class MappingValueExtractor
      Parameters:
      mapping - The mapping from which to extract the value.
      Returns:
      The desired value, or null if the mapping does not have 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).
      Returns:
      The actual Java class of the object representing the extracted value.