ExpressionBuilder.EmptyExpression

com.google.appengine.api.search.dev

Class ExpressionBuilder.EmptyExpression

• java.lang.Object
• • com.google.appengine.api.search.dev.Expression
  • • com.google.appengine.api.search.dev.ExpressionBuilder.EmptyExpression

• Enclosing class:

  ExpressionBuilder

  ---

  
  

  public static class ExpressionBuilder.EmptyExpression
  extends Expression

  Empty Expression, which is evaluated if the input string was empty.

• • Nested Class Summary

    • Nested classes/interfaces inherited from class com.google.appengine.api.search.dev.Expression

      Expression.Sorter

  • Constructor Summary

    Constructors 

    Constructor and Description
    EmptyExpression()

  • Method Summary

    All Methods Instance Methods Concrete Methods 

    Modifier and Type	Method and Description
    FieldValue	eval(Document doc) Evaluate the expression to field value proto for the specified document.
    java.util.List<Expression.Sorter>	getSorters(int sign, double dfltD, java.lang.String dfltT) Get list of sort classes for the expression.

    • Methods inherited from class com.google.appengine.api.search.dev.Expression

      makeValue

    • Methods inherited from class java.lang.Object

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

• • Constructor Detail

    • EmptyExpression

      public EmptyExpression()

  • Method Detail

    • eval

      public FieldValue eval(Document doc)
                      throws EvaluationException

      Description copied from class: Expression
      Evaluate the expression to field value proto for the specified document.

      Specified by:

      eval in class Expression

      Throws:

      EvaluationException

    • getSorters

      public java.util.List<Expression.Sorter> getSorters(int sign,
                                                          double dfltD,
                                                          java.lang.String dfltT)

      Description copied from class: Expression
      Get list of sort classes for the expression. Usually it contains just one element, but for field expressions it can potentially return 2 sorters when both numeric and text fields exist with a field name.

      Specified by:

      getSorters in class Expression