Package net.sf.saxon.ma.map

## Class MapUntypedContains

- java.lang.Object
- - net.sf.saxon.functions.AbstractFunction
  - - net.sf.saxon.functions.SystemFunction
    - - net.sf.saxon.ma.map.MapUntypedContains

- All Implemented Interfaces:
    `Callable`, `Function`, `GroundedValue`, `Item`, `Sequence`

      public class MapUntypedContains
      extends SystemFunction

  Implementation of an internal function map:untyped-contains(Map, key) => boolean, which is like map:contains except that if the supplied key is untyped atomic, it is converted to all the possible types present in the map and returns true if the key after conversion is present. In addition, if the supplied key is NaN then the result is always false.

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `MapUntypedContains()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `Sequence` | `call​(XPathContext context, Sequence[] arguments)` | Invoke the function

    - ### Methods inherited from class net.sf.saxon.functions.SystemFunction

      `dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getCompilerName, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, importAttributes, isTrustedResultType, makeCall, makeFunction, makeFunctionCall, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller`

    - ### Methods inherited from class net.sf.saxon.functions.AbstractFunction

      `atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface net.sf.saxon.om.Function

      `getGenre`

    - ### Methods inherited from interface net.sf.saxon.om.GroundedValue

      `asIterable, concatenate, containsNode, materialize`

    - ### Methods inherited from interface net.sf.saxon.om.Item

      `getLength, head, isStreamed, itemAt, iterate, reduce, subsequence`

    - ### Methods inherited from interface net.sf.saxon.om.Sequence

      `makeRepeatable`

- - ### Constructor Detail

    - #### MapUntypedContains

          public MapUntypedContains()

  - ### Method Detail

    - #### call

          public Sequence call​(XPathContext context,
                               Sequence[] arguments)
                        throws XPathException

      Description copied from interface: `Function`
      Invoke the function
      Parameters:
        `context` - the XPath dynamic evaluation context
        `arguments` - the actual arguments to be supplied
      Returns:
        the result of invoking the function
      Throws:
        `XPathException` - if a dynamic error occurs within the function