org.apache.xpath.functions
Class FunctionDef1Arg
java.lang.Object
org.apache.xpath.Expression
org.apache.xpath.functions.Function
org.apache.xpath.functions.FunctionOneArg
org.apache.xpath.functions.FunctionDef1Arg
- All Implemented Interfaces:
- Serializable, SourceLocator, ExpressionNode, ExpressionOwner, XPathVisitable
- Direct Known Subclasses:
- FuncDoclocation, FuncGenerateId, FuncLocalPart, FuncNamespace, FuncNormalizeSpace, FuncNumber, FuncQname, FuncString, FuncStringLength
public class FunctionDef1Arg
- extends FunctionOneArg
Base class for functions that accept one argument that can be defaulted if
not specified.
- See Also:
- Serialized Form
Method Summary |
boolean |
Arg0IsNodesetExpr()
Tell if the expression is a nodeset expression. |
boolean |
canTraverseOutsideSubtree()
Tell if this expression or it's subexpressions can traverse outside
the current subtree. |
void |
checkNumberArgs(int argNum)
Check that the number of arguments passed to this function is correct. |
Methods inherited from class org.apache.xpath.Expression |
asIterator, asIteratorRaw, asNode, assertion, bool, error, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr |
FunctionDef1Arg
public FunctionDef1Arg()
Arg0IsNodesetExpr
public boolean Arg0IsNodesetExpr()
- Tell if the expression is a nodeset expression.
- Returns:
- true if the expression can be represented as a nodeset.
checkNumberArgs
public void checkNumberArgs(int argNum)
throws WrongNumberArgsException
- Check that the number of arguments passed to this function is correct.
- Overrides:
checkNumberArgs
in class FunctionOneArg
- Parameters:
argNum
- The number of arguments that is being passed to the function.
- Throws:
WrongNumberArgsException
- if the number of arguments is not 0 or 1.
canTraverseOutsideSubtree
public boolean canTraverseOutsideSubtree()
- Tell if this expression or it's subexpressions can traverse outside
the current subtree.
- Overrides:
canTraverseOutsideSubtree
in class FunctionOneArg
- Returns:
- true if traversal outside the context node's subtree can occur.
Copyright ? 2005 Apache XML Project. All Rights Reserved.