## Uses of Interface
org.apache.xpath.ExpressionOwner

- Packages that use ExpressionOwner
  Package | Description
  --- | ---
  org.apache.xalan.extensions | Implementation of Xalan Extension Mechanism.
  org.apache.xalan.templates | Implements the `Templates` interface, and defines a set of classes that represent an XSLT stylesheet.
  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.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.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.

- - ### Uses of ExpressionOwner in org.apache.xalan.extensions

    Methods in org.apache.xalan.extensions with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | ExpressionVisitor.`visitFunction(ExpressionOwner owner, Function func)` If the function is an extension function, register the namespace.

  - ### Uses of ExpressionOwner in org.apache.xalan.templates

    Classes in org.apache.xalan.templates that implement ExpressionOwner
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ElemApplyTemplates` Implement xsl:apply-templates.
    `class` | `ElemCallTemplate` Implement xsl:call-template.
    `class` | `ElemForEach` Implement xsl:for-each.
    `class` | `FuncDocument` Execute the Doc() function.
    `class` | `FuncFormatNumb` Execute the FormatNumber() function.
    `class` | `FuncKey` Execute the Key() function.

    Methods in org.apache.xalan.templates with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | AbsPathChecker.`visitFunction(ExpressionOwner owner, Function func)` Visit a function.
    `boolean` | RedundentExprEliminator.`visitLocationPath(ExpressionOwner owner, LocPathIterator path)` Visit a LocationPath.
    `boolean` | RedundentExprEliminator.`visitPredicate(ExpressionOwner owner, Expression pred)` Visit a predicate within a location path.
    `boolean` | VarNameCollector.`visitVariableRef(ExpressionOwner owner, Variable var)` Visit a variable reference.
    `boolean` | AbsPathChecker.`visitVariableRef(ExpressionOwner owner, Variable var)` Visit a variable reference.

  - ### Uses of ExpressionOwner in org.apache.xpath

    Classes in org.apache.xpath that implement ExpressionOwner
    Modifier and Type | Class and Description
    --- | ---
    `class` | `XPath` The XPath class wraps an expression object and provides general services for execution of that expression.

    Methods in org.apache.xpath with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `void` | XPathVisitable.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)` This will traverse the heararchy, calling the visitor for each member.
    `void` | XPath.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)` This will traverse the heararchy, calling the visitor for each member.
    `boolean` | XPathVisitor.`visitBinaryOperation(ExpressionOwner owner, Operation op)` Visit a binary operation.
    `boolean` | XPathVisitor.`visitFunction(ExpressionOwner owner, Function func)` Visit a function.
    `boolean` | XPathVisitor.`visitLocationPath(ExpressionOwner owner, LocPathIterator path)` Visit a LocationPath.
    `boolean` | XPathVisitor.`visitMatchPattern(ExpressionOwner owner, StepPattern pattern)` Visit a match pattern.
    `boolean` | XPathVisitor.`visitNumberLiteral(ExpressionOwner owner, XNumber num)` Visit a number literal.
    `boolean` | XPathVisitor.`visitPredicate(ExpressionOwner owner, Expression pred)` Visit a predicate within a location path.
    `boolean` | XPathVisitor.`visitStep(ExpressionOwner owner, NodeTest step)` Visit a step within a location path.
    `boolean` | XPathVisitor.`visitStringLiteral(ExpressionOwner owner, XString str)` Visit a string literal.
    `boolean` | XPathVisitor.`visitUnaryOperation(ExpressionOwner owner, UnaryOperation op)` Visit a unary operation.
    `boolean` | XPathVisitor.`visitUnionPath(ExpressionOwner owner, UnionPathIterator path)` Visit a UnionPath.
    `boolean` | XPathVisitor.`visitUnionPattern(ExpressionOwner owner, UnionPattern pattern)` Visit a union pattern.
    `boolean` | XPathVisitor.`visitVariableRef(ExpressionOwner owner, Variable var)` Visit a variable reference.

  - ### Uses of ExpressionOwner in org.apache.xpath.axes

    Classes in org.apache.xpath.axes that implement ExpressionOwner
    Modifier and Type | Class and Description
    --- | ---
    `class` | `AxesWalker` Serves as common interface for axes Walkers, and stores common state variables.
    `class` | `FilterExprWalker` Walker for the OP_VARIABLE, or OP_EXTFUNCTION, or OP_FUNCTION, or OP_GROUP, op codes.
    `class` | `ReverseAxesWalker` Walker for a reverse axes.
    `class` | `WalkingIterator` Location path iterator that uses Walkers.
    `class` | `WalkingIteratorSorted` This class iterates over set of nodes that needs to be sorted.

    Methods in org.apache.xpath.axes with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `void` | WalkingIterator.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | UnionPathIterator.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | LocPathIterator.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | AxesWalker.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)` This will traverse the heararchy, calling the visitor for each member.
    `boolean` | HasPositionalPredChecker.`visitFunction(ExpressionOwner owner, Function func)` Visit a function.
    `boolean` | HasPositionalPredChecker.`visitPredicate(ExpressionOwner owner, Expression pred)` Visit a predicate within a location path.

  - ### Uses of ExpressionOwner in org.apache.xpath.functions

    Classes in org.apache.xpath.functions that implement ExpressionOwner
    Modifier and Type | Class and Description
    --- | ---
    `class` | `FuncBoolean` Execute the Boolean() function.
    `class` | `FuncCeiling` Execute the Ceiling() function.
    `class` | `FuncConcat` Execute the Concat() function.
    `class` | `FuncContains` Execute the Contains() function.
    `class` | `FuncCount` Execute the Count() function.
    `class` | `FuncDoclocation` Execute the proprietary document-location() function, which returns a node set of documents.
    `class` | `FuncExtElementAvailable` Execute the ExtElementAvailable() function.
    `class` | `FuncExtFunctionAvailable` Execute the ExtFunctionAvailable() function.
    `class` | `FuncFloor` Execute the Floor() function.
    `class` | `FuncGenerateId` Execute the GenerateId() function.
    `class` | `FuncId` Execute the Id() function.
    `class` | `FuncLang` Execute the Lang() function.
    `class` | `FuncLocalPart` Execute the LocalPart() function.
    `class` | `FuncNamespace` Execute the Namespace() function.
    `class` | `FuncNormalizeSpace` Execute the normalize-space() function.
    `class` | `FuncNot` Execute the Not() function.
    `class` | `FuncNumber` Execute the Number() function.
    `class` | `FuncQname` Execute the Qname() function.
    `class` | `FuncRound` Execute the round() function.
    `class` | `FuncStartsWith` Execute the StartsWith() function.
    `class` | `FuncString` Execute the String() function.
    `class` | `FuncStringLength` Execute the StringLength() function.
    `class` | `FuncSubstring` Execute the Substring() function.
    `class` | `FuncSubstringAfter` Execute the SubstringAfter() function.
    `class` | `FuncSubstringBefore` Execute the SubstringBefore() function.
    `class` | `FuncSum` Execute the Sum() function.
    `class` | `FuncSystemProperty` Execute the SystemProperty() function.
    `class` | `Function2Args` Base class for functions that accept two arguments.
    `class` | `Function3Args` Base class for functions that accept three arguments.
    `class` | `FunctionDef1Arg` Base class for functions that accept one argument that can be defaulted if not specified.
    `class` | `FunctionMultiArgs` Base class for functions that accept an undetermined number of multiple arguments.
    `class` | `FunctionOneArg` Base class for functions that accept one argument.
    `class` | `FuncTranslate` Execute the Translate() function.
    `class` | `FuncUnparsedEntityURI`

    Methods in org.apache.xpath.functions with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `void` | Function.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`

  - ### Uses of ExpressionOwner in org.apache.xpath.objects

    Methods in org.apache.xpath.objects with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `void` | XString.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | XObject.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | XNumber.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`

  - ### Uses of ExpressionOwner in org.apache.xpath.operations

    Classes in org.apache.xpath.operations that implement ExpressionOwner
    Modifier and Type | Class and Description
    --- | ---
    `class` | `And` The 'and' operation expression executer.
    `class` | `Bool` The 'boolean()' operation expression executer.
    `class` | `Div` The 'div' operation expression executer.
    `class` | `Equals` The '=' operation expression executer.
    `class` | `Gt` The '>' operation expression executer.
    `class` | `Gte` The '>=' operation expression executer.
    `class` | `Lt` The '<' operation expression executer.
    `class` | `Lte` The '<=' operation expression executer.
    `class` | `Minus` The binary '-' operation expression executer.
    `class` | `Mod` The 'mod' operation expression executer.
    `class` | `Mult` The '*' operation expression executer.
    `class` | `Neg` The unary '-' operation expression executer.
    `class` | `NotEquals` The '!
    `class` | `Number` The 'number()' operation expression executer.
    `class` | `Operation` The baseclass for a binary operation.
    `class` | `Or` The 'or' operation expression executer.
    `class` | `Plus` The '+' operation expression executer.
    `class` | `Quo` Deprecated.
    `class` | `String` The 'string()' operation expression executer.
    `class` | `UnaryOperation` The unary operation base class.

    Methods in org.apache.xpath.operations with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `void` | Variable.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | UnaryOperation.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | Operation.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`

  - ### Uses of ExpressionOwner in org.apache.xpath.patterns

    Classes in org.apache.xpath.patterns that implement ExpressionOwner
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ContextMatchStepPattern` Special context node pattern matcher.
    `class` | `FunctionPattern` Match pattern step that contains a function.
    `class` | `StepPattern` This class represents a single pattern match step.

    Methods in org.apache.xpath.patterns with parameters of type ExpressionOwner
    Modifier and Type | Method and Description
    --- | ---
    `void` | UnionPattern.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | StepPattern.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`
    `void` | NodeTest.`callVisitors(ExpressionOwner owner, XPathVisitor visitor)`

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