QueryTreeVisitor (Google App Engine API for Java)

com.google.appengine.api.search.query

Interface QueryTreeVisitor<T extends QueryTreeContext<T>>

  • Type Parameters:
    T - the type of the context object accompanying visited tree nodes.

    public interface QueryTreeVisitor<T extends QueryTreeContext<T>>
    Defines an interface of the visitor invoked by the walker.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method and Description
      void visitConjunction(Tree node, T context)
      Visits a node that represents a conjunction (logical and) of conditions.
      void visitContains(Tree node, T context)
      Visits a node that represents that a field must contain a value.
      void visitDisjunction(Tree node, T context)
      Visits a node that represents a disjunction (logical or) of conditions.
      void visitEqual(Tree node, T context)
      Visits a node that represents that a field value must be greater than or equal to some specified value.
      void visitFunction(Tree node, T context)
      Visits a node that represents a function computed on some arguments.
      void visitFuzzy(Tree node, T context)
      Visits a node that represents a text field that is subject to query rewrite.
      void visitGlobal(Tree node, T context)
      Visits a node that represents a global field.
      void visitGreaterOrEqual(Tree node, T context)
      Visits a node that represents an inequality between a field and value.
      void visitGreaterThan(Tree node, T context)
      Visits a node that represents that a field value must be greater than some specified value.
      void visitLessOrEqual(Tree node, T context)
      Visits a node that represents that a field value must be less than or equal to some specified value.
      void visitLessThan(Tree node, T context)
      Visits a node that represents that a field value must be less than some specified value.
      void visitLiteral(Tree node, T context)
      Visits a node that represents a text field that must not be altered.
      void visitNegation(Tree node, T context)
      Visits a node that represents a negation of conditions.
      void visitOther(Tree node, T context)
      Catch-all method for future type of query nodes.
      void visitSequence(Tree node, T context)
      Visits a node that represents a sequence of expressions.
      void visitValue(Tree node, T context)
      Visits a node that represents a constant value.

    • Method Detail

      • visitSequence

        void visitSequence(Tree node,
                   T context)
        Visits a node that represents a sequence of expressions.

      • visitConjunction

        void visitConjunction(Tree node,
                      T context)
        Visits a node that represents a conjunction (logical and) of conditions.

      • visitDisjunction

        void visitDisjunction(Tree node,
                      T context)
        Visits a node that represents a disjunction (logical or) of conditions.

      • visitNegation

        void visitNegation(Tree node,
                   T context)
        Visits a node that represents a negation of conditions.

      • visitFuzzy

        void visitFuzzy(Tree node,
                T context)
        Visits a node that represents a text field that is subject to query rewrite.

      • visitLiteral

        void visitLiteral(Tree node,
                  T context)
        Visits a node that represents a text field that must not be altered.

      • visitLessThan

        void visitLessThan(Tree node,
                   T context)
        Visits a node that represents that a field value must be less than some specified value.

      • visitLessOrEqual

        void visitLessOrEqual(Tree node,
                      T context)
        Visits a node that represents that a field value must be less than or equal to some specified value.

      • visitGreaterThan

        void visitGreaterThan(Tree node,
                      T context)
        Visits a node that represents that a field value must be greater than some specified value.

      • visitGreaterOrEqual

        void visitGreaterOrEqual(Tree node,
                         T context)
        Visits a node that represents an inequality between a field and value.

      • visitEqual

        void visitEqual(Tree node,
                T context)
        Visits a node that represents that a field value must be greater than or equal to some specified value.

      • visitContains

        void visitContains(Tree node,
                   T context)
        Visits a node that represents that a field must contain a value.

      • visitValue

        void visitValue(Tree node,
                T context)
        Visits a node that represents a constant value.

      • visitFunction

        void visitFunction(Tree node,
                   T context)
        Visits a node that represents a function computed on some arguments.

      • visitGlobal

        void visitGlobal(Tree node,
                 T context)
        Visits a node that represents a global field.

      • visitOther

        void visitOther(Tree node,
                T context)
        Catch-all method for future type of query nodes.