<xsd:simpleType name="DoubleOperatorType">
  <xsd:annotation>
    <xsd:documentation>=, not =, Less Than, More Than, ...</xsd:documentation>
  </xsd:annotation>
  <xsd:restriction base="NonEmptyTokenType">
    <xsd:enumeration value="eq">
      <xsd:annotation>
        <xsd:documentation>Value or Field equals the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="ne">
      <xsd:annotation>
        <xsd:documentation>Value or Field not equals the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="lt">
      <xsd:annotation>
        <xsd:documentation>Value or Field less than the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="lte">
      <xsd:annotation>
        <xsd:documentation>Value or Field less than or equals the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="gt">
      <xsd:annotation>
        <xsd:documentation>Value or Field greater than the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="gte">
      <xsd:annotation>
        <xsd:documentation>Value or Field greater than or equals the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="size">
      <xsd:annotation>
        <xsd:documentation>Value or Field equals the size of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="in">
      <xsd:annotation>
        <xsd:documentation>Value or Field is IN the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="nin">
      <xsd:annotation>
        <xsd:documentation>Value or Field is not IN the value of the Node Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="match">
      <xsd:annotation>
        <xsd:documentation>the Node Field matches some words from Value or Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="matchPhrase">
      <xsd:annotation>
        <xsd:documentation>the Node Field matches a phrase from Value or Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="matchPhrasePrefix">
      <xsd:annotation>
        <xsd:documentation>the Node Field matches a phrase as prefix from Value or Field</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="search">
      <xsd:annotation>
        <xsd:documentation>the Node Field matches a search request from Value or Field. Search request contains wildcards (? *), and grouping (), exact "", +/- must/must not be present</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="regex">
      <xsd:annotation>
        <xsd:documentation>the Node Field matches a regular expression request from Value or Field.</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="term">
      <xsd:annotation>
        <xsd:documentation>the Node Field contains an exact term from Value or Field (can contain more).</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="wildcard">
      <xsd:annotation>
        <xsd:documentation>the Node Field matches a wildcard request from Value or Field. Wildcard request contains wildcards (? *) and is only for TERM (not words in a phrase, but all in one)</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
    <xsd:enumeration value="path">
      <xsd:annotation>
        <xsd:documentation>the Node Field is exactly the result of the path from Value or Field (multiple Path are to be used in order).</xsd:documentation>
      </xsd:annotation>
    </xsd:enumeration>
  </xsd:restriction>
</xsd:simpleType>