# Uses of Package
org.apache.xpath

- Packages that use org.apache.xpath
  Package | Description
  --- | ---
  org.apache.xalan.extensions | Implementation of Xalan Extension Mechanism.
  org.apache.xalan.lib | Extension elements and functions shipped with Xalan-Java, including EXSLT functions.
  org.apache.xalan.processor | Parses an XSLT stylesheet document (which may include and import other stylesheet documents) and produces a StylesheetRoot (a TRaX Templates object).
  org.apache.xalan.serialize |
  org.apache.xalan.templates | Implements the `Templates` interface, and defines a set of classes that represent an XSLT stylesheet.
  org.apache.xalan.trace | Implementation of Xalan Trace events, for use by a debugger.
  org.apache.xalan.transformer | In charge of run-time transformations and the production of result trees.
  org.apache.xpath | Implementation of XPath; for the most part, only classes meant for public use are found at this root level of the XPath packages.
  org.apache.xpath.axes | Implementation of XPath LocationPath support -- primary classes are LocPathIterator and UnionPathIterator.
  org.apache.xpath.compiler | Implements an XPath parser which produces an OpMap, and a so-called Compiler which produces an expression tree for fast evaluation.
  org.apache.xpath.functions | Implements XPath functions -- each function is derived from Function, FunctionOneArg, Function2Args, etc, with number-of-arguments checking being applied mainly at compile time -- this package only implements XPath functions, XSLT functions are found in the "templates" package.
  org.apache.xpath.jaxp |
  org.apache.xpath.objects | Implementation of XPath polymorphic type objects -- this package will grow as XPath objects are expanded to support XML Schema data types.
  org.apache.xpath.operations | Support for XPath operations, such as +, -, string(), etc.
  org.apache.xpath.patterns | Implementation of XPath nodeTest support, and XSLT pattern matching support.

- Classes in org.apache.xpath used by org.apache.xalan.extensions
  Class and Description
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xalan.lib
  Class and Description
  NodeSet The NodeSet class can act as either a NodeVector, NodeList, or NodeIterator.

- Classes in org.apache.xpath used by org.apache.xalan.processor
  Class and Description
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  WhitespaceStrippingElementMatcher A class that implements this interface can tell if a given element should strip whitespace nodes from it's children.
  XPath The XPath class wraps an expression object and provides general services for execution of that expression.

- Classes in org.apache.xpath used by org.apache.xalan.serialize
  Class and Description
  XPathContext Default class for the runtime execution context for XPath.

- Classes in org.apache.xpath used by org.apache.xalan.templates
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  WhitespaceStrippingElementMatcher A class that implements this interface can tell if a given element should strip whitespace nodes from it's children.
  XPath The XPath class wraps an expression object and provides general services for execution of that expression.
  XPathContext Default class for the runtime execution context for XPath.
  XPathFactory Factory class for creating an XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xalan.trace
  Class and Description
  XPath The XPath class wraps an expression object and provides general services for execution of that expression.

- Classes in org.apache.xpath used by org.apache.xalan.transformer
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExtensionsProvider Interface that XPath objects can call to obtain access to an ExtensionsTable.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.

- Classes in org.apache.xpath used by org.apache.xpath
  Class and Description
  CachedXPathAPI The methods in this class are convenience methods into the low-level XPath API.
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  NodeSet The NodeSet class can act as either a NodeVector, NodeList, or NodeIterator.
  NodeSetDTM The NodeSetDTM class can act as either a NodeVector, NodeList, or NodeIterator.
  SourceTreeManager This class bottlenecks all management of source trees.
  VariableStack Defines a class to keep track of a stack for template arguments and variables.
  XPath The XPath class wraps an expression object and provides general services for execution of that expression.
  XPathContext Default class for the runtime execution context for XPath.
  XPathException This class implements an exception object that all XPath classes will throw in case of an error.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xpath.axes
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  NodeSetDTM The NodeSetDTM class can act as either a NodeVector, NodeList, or NodeIterator.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xpath.compiler
  Class and Description
  Expression This abstract class serves as the base for all expression objects.

- Classes in org.apache.xpath used by org.apache.xpath.functions
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xpath.jaxp
  Class and Description
  ExtensionsProvider Interface that XPath objects can call to obtain access to an ExtensionsTable.
  VariableStack Defines a class to keep track of a stack for template arguments and variables.
  XPath The XPath class wraps an expression object and provides general services for execution of that expression.
  XPathContext Default class for the runtime execution context for XPath.

- Classes in org.apache.xpath used by org.apache.xpath.objects
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  NodeSetDTM The NodeSetDTM class can act as either a NodeVector, NodeList, or NodeIterator.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xpath.operations
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

- Classes in org.apache.xpath used by org.apache.xpath.patterns
  Class and Description
  Expression This abstract class serves as the base for all expression objects.
  ExpressionNode A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information.
  ExpressionOwner Classes that implement this interface own an expression, which can be rewritten.
  XPathContext Default class for the runtime execution context for XPath.
  XPathVisitable A class that implements this interface will call a XPathVisitor for itself and members within it's heararchy.
  XPathVisitor A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath.

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