Package com.yahoo.searchlib.rankingexpression.rule

Class NameNode

  • All Implemented Interfaces:
    java.io.Serializable
    public final class NameNode
extends ExpressionNode
    An opaque name in a ranking expression. This is used to represent names passed to the context and interpreted by the given context in a way which is opaque to the ranking expressions.
    Author:
    Simon Thoresen Hult
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      NameNode​(java.lang.String name)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Value evaluate​(Context context)
      Returns the value of evaluating this expression over the given context.
      java.lang.String getValue()  
      java.lang.StringBuilder toString​(java.lang.StringBuilder string, SerializationContext context, java.util.Deque<java.lang.String> path, CompositeNode parent)
      Returns a script instance of this based on the supplied script functions.
      com.yahoo.tensor.TensorType type​(com.yahoo.tensor.evaluation.TypeContext<Reference> context)
      Returns the type this will return if evaluated with the given context.

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • NameNode

        public NameNode​(java.lang.String name)

    • Method Detail

      • getValue

        public java.lang.String getValue()

      • toString

        public java.lang.StringBuilder toString​(java.lang.StringBuilder string,
                                        SerializationContext context,
                                        java.util.Deque<java.lang.String> path,
                                        CompositeNode parent)
        Description copied from class: ExpressionNode
        Returns a script instance of this based on the supplied script functions.
        Specified by:
        toString in class ExpressionNode
        Parameters:
        string - the StringBuilder that will be appended to
        context - the serialization context
        path - the call path to this, used for cycle detection, or null if this is a root
        parent - the parent node of this, or null if it a root
        Returns:
        the main script, referring to script instances.

      • type

        public com.yahoo.tensor.TensorType type​(com.yahoo.tensor.evaluation.TypeContext<Reference> context)
        Description copied from class: ExpressionNode
        Returns the type this will return if evaluated with the given context.
        Specified by:
        type in class ExpressionNode
        Parameters:
        context - the variable type bindings to use for this evaluation

      • evaluate

        public Value evaluate​(Context context)
        Description copied from class: ExpressionNode
        Returns the value of evaluating this expression over the given context.
        Specified by:
        evaluate in class ExpressionNode
        Parameters:
        context - the variable bindings to use for this evaluation