org.quattor.pan.dml.functions
Class Prepend

java.lang.Object
  org.quattor.pan.dml.AbstractOperation
      org.quattor.pan.dml.functions.BuiltInFunction
          org.quattor.pan.dml.functions.Prepend

All Implemented Interfaces:

Operation

public final class Prepend
extends BuiltInFunction

Will prepend a value to the beginning of a list. It will create the referenced list if necessary.

Author:

loomis

Field Summary

Fields inherited from class org.quattor.pan.dml.functions.BuiltInFunction

name

Fields inherited from class org.quattor.pan.dml.AbstractOperation

ops, sourceRange

Constructor Summary

protected

Prepend(SourceRange sourceRange, Operation... operations)

Method Summary

Element	execute(Context context) Execute this operation within the given context.
static Operation	getInstance(SourceRange sourceRange, Operation... operations)

Methods inherited from class org.quattor.pan.dml.functions.BuiltInFunction

throwExceptionIfCompileTimeContext, toString

Methods inherited from class org.quattor.pan.dml.AbstractOperation

calculateArgs, calculateTerms, checkInvalidSelfContext, checkRestrictedContext, getOperations, getSourceRange

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Prepend

protected Prepend(SourceRange sourceRange,
                  Operation... operations)
           throws SyntaxException

Throws:

SyntaxException

Method Detail

getInstance

public static Operation getInstance(SourceRange sourceRange,
                                    Operation... operations)
                             throws SyntaxException

Throws:

SyntaxException

execute

public Element execute(Context context)

Description copied from interface: Operation

Execute this operation within the given context. If an error occurs, an EvaluationException will be thrown with the details.

Specified by:

execute in interface Operation

Specified by:

execute in class AbstractOperation

Parameters:

context - evaluation context for the statement

Returns:

Element produced by running operation