org.exist.xquery.functions.util
Class LogFunction

java.lang.Object
  org.exist.xquery.AbstractExpression
      org.exist.xquery.PathExpr
          org.exist.xquery.Function
              org.exist.xquery.BasicFunction
                  org.exist.xquery.functions.util.LogFunction

All Implemented Interfaces:

CompiledXQuery, Expression, CompiledExpression

public class LogFunction
extends BasicFunction

Author:

Wolfgang Meier (wolfgang@exist-db.org)

Field Summary

static FunctionSignature

signature

Fields inherited from class org.exist.xquery.Function

BUILTIN_FUNCTION_NS

Fields inherited from interface org.exist.xquery.Expression

DOT_TEST, EXPRESSION_ID_INVALID, IGNORE_CONTEXT, IN_PREDICATE, IN_UPDATE, IN_WHERE_CLAUSE, NEED_INDEX_INFO, NO_CONTEXT_ID, SINGLE_STEP_EXECUTION

Constructor Summary

LogFunction(XQueryContext context)

Method Summary

Sequence

eval(Sequence[] args, Sequence contextSequence) Process the function.

Methods inherited from class org.exist.xquery.BasicFunction

eval

Methods inherited from class org.exist.xquery.Function

accept, analyze, createFunction, dump, getArgument, getArgumentCount, getArguments, getASTNode, getCardinality, getDependencies, getName, getParent, getSignature, isCalledAs, returnsType, setArguments, setASTNode, setParent, setPrimaryAxis, toString

Methods inherited from class org.exist.xquery.PathExpr

add, add, addPath, addPredicate, dump, getContext, getDocumentSet, getExpression, getLastExpression, getLength, getLiteralValue, getSource, isValid, replaceExpression, replaceLastExpression, reset, resetState, setContext, setSource

Methods inherited from class org.exist.xquery.AbstractExpression

eval, getContextDocSet, getContextId, getExpressionId, setContextDocSet

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.exist.xquery.CompiledXQuery

eval

Field Detail

signature

public static final FunctionSignature signature

Constructor Detail

LogFunction

public LogFunction(XQueryContext context)

Method Detail

eval

public Sequence eval(Sequence[] args,
                     Sequence contextSequence)
              throws XPathException

Description copied from class: BasicFunction

Process the function. All arguments are passed in the array args. The number of arguments, their type and cardinality have already been checked to match the function signature.

Specified by:

eval in class BasicFunction

Throws:

XPathException