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## net.sf.saxon.xpath
Class XPathFactoryImpl

    java.lang.Object
      javax.xml.xpath.XPathFactory
          net.sf.saxon.xpath.XPathFactoryImpl

public class XPathFactoryImpl
extends javax.xml.xpath.XPathFactory

Saxon implementation of the JAXP 1.3 XPathFactory

Field Summary

Fields inherited from class javax.xml.xpath.XPathFactory
`DEFAULT_OBJECT_MODEL_URI, DEFAULT_PROPERTY_NAME`

Constructor Summary
`XPathFactoryImpl()`

Method Summary
`Configuration` | `getConfiguration()` Get the Configuration object
`boolean` | `getFeature(java.lang.String feature)` Get a feature of this XPath implementation.
`boolean` | `isObjectModelSupported(java.lang.String model)` Test whether a given object model is supported.
`protected Configuration` | `makeConfiguration()`
`javax.xml.xpath.XPath` | `newXPath()` Create an XPath evaluator
`void` | `setFeature(java.lang.String feature, boolean b)` Set a feature of this XPath implementation.
`void` | `setXPathFunctionResolver(javax.xml.xpath.XPathFunctionResolver xPathFunctionResolver)` Set a resolver for XPath functions.
`void` | `setXPathVariableResolver(javax.xml.xpath.XPathVariableResolver xPathVariableResolver)` Set a resolver for XPath variables.

Methods inherited from class javax.xml.xpath.XPathFactory
`newInstance, newInstance`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### XPathFactoryImpl

    public XPathFactoryImpl()

Method Detail

### makeConfiguration

    protected Configuration makeConfiguration()

### getConfiguration

    public Configuration getConfiguration()

  Get the Configuration object

### isObjectModelSupported

    public boolean isObjectModelSupported(java.lang.String model)

  Test whether a given object model is supported. Returns true if the object model is the Saxon object model, DOM, JDOM, or XOM

  Parameters:
    `model` - The URI identifying the object model.
  Returns:
    true if the object model is one of `NamespaceConstant.OBJECT_MODEL_SAXON`, `XPathConstants.DOM_OBJECT_MODEL`, `NamespaceConstant.OBJECT_MODEL_JDOM`, or `NamespaceConstant.OBJECT_MODEL_XOM`

### setFeature

    public void setFeature(java.lang.String feature,
                           boolean b)
                    throws javax.xml.xpath.XPathFactoryConfigurationException

  Set a feature of this XPath implementation. The only features currently recognized are:
  - `XMLConstants.FEATURE_SECURE_PROCESSING`
  - `FeatureKeys.SCHEMA_VALIDATION`: requests schema validation of source documents. The property is rejected if the configuration is not schema-aware.

  Parameters:
    `feature` - a URI identifying the feature
    `b` - true to set the feature on, false to set it off
  Throws:
    `javax.xml.xpath.XPathFactoryConfigurationException` - if the feature name is not recognized

### getFeature

    public boolean getFeature(java.lang.String feature)
                       throws javax.xml.xpath.XPathFactoryConfigurationException

  Get a feature of this XPath implementation. The only features currently recognized are:
  - `XMLConstants.FEATURE_SECURE_PROCESSING`
  - `FeatureKeys.SCHEMA_VALIDATION`: requests schema validation of source documents.

  Parameters:
    `feature` - a URI identifying the feature
  Returns:
    true if the feature is on, false if it is off
  Throws:
    `javax.xml.xpath.XPathFactoryConfigurationException` - if the feature name is not recognized

### setXPathVariableResolver

    public void setXPathVariableResolver(javax.xml.xpath.XPathVariableResolver xPathVariableResolver)

  Set a resolver for XPath variables. This will be used to obtain the value of any variable referenced in an XPath expression. The variable resolver must be allocated before the expression is compiled, but it will only be called when the expression is evaluated.

  Parameters:
    `xPathVariableResolver` - The object used to resolve references to variables.

### setXPathFunctionResolver

    public void setXPathFunctionResolver(javax.xml.xpath.XPathFunctionResolver xPathFunctionResolver)

  Set a resolver for XPath functions. This will be used to obtain an implementation of any external function referenced in an XPath expression. This is not required for system functions, Saxon extension functions, constructor functions named after types, or extension functions bound using a namespace that maps to a Java class.

  Parameters:
    `xPathFunctionResolver` - The object used to resolve references to external functions.

### newXPath

    public javax.xml.xpath.XPath newXPath()

  Create an XPath evaluator

  Returns:
    an XPath object, which can be used to compile and execute XPath expressions.

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