org.quattor.pan.statement
Class RelativeAssignmentStatement

java.lang.Object
  org.quattor.pan.statement.Statement
      org.quattor.pan.statement.AssignmentStatement
          org.quattor.pan.statement.ComputedAssignmentStatement
              org.quattor.pan.statement.RelativeAssignmentStatement

public class RelativeAssignmentStatement
extends ComputedAssignmentStatement

Assigns a constant or computed value to a relative path. If the value is Null, then the corresponding path will be removed.

Author:

loomis

Field Summary

Fields inherited from class org.quattor.pan.statement.ComputedAssignmentStatement

dml

Fields inherited from class org.quattor.pan.statement.AssignmentStatement

conditional, modifiable, path

Constructor Summary

protected

RelativeAssignmentStatement(SourceRange sourceRange, Path path, Operation dml, boolean conditional, boolean modifiable) This constructor creates a new AssignmentStatement which assigns a the result of a DML block to the associated path.

Method Summary

void	execute(Context context) Execute this Statement within the given context.

Methods inherited from class org.quattor.pan.statement.AssignmentStatement

createAssignmentStatement, createAssignmentStatement, isAbsolute, isRelative

Methods inherited from class org.quattor.pan.statement.Statement

getSourceRange

Methods inherited from class java.lang.Object

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

Constructor Detail

RelativeAssignmentStatement

protected RelativeAssignmentStatement(SourceRange sourceRange,
                                      Path path,
                                      Operation dml,
                                      boolean conditional,
                                      boolean modifiable)
                               throws SyntaxException

This constructor creates a new AssignmentStatement which assigns a the result of a DML block to the associated path.

Parameters:

sourceRange - source location of this statement

path - machine configuration path (non-external) to modify

dml - DML block to evaluate for the path's value

conditional - flag indicating if this is a conditional assignment (i.e. if the value already exists, don't do anything)

modifiable - flag indicating if the path can be further modified (i.e. 'final' functionality)

Throws:

SyntaxException

Method Detail

execute

public void execute(Context context)
             throws EvaluationException

Description copied from class: Statement

Execute this Statement within the given context.

Specified by:

execute in class Statement

Parameters:

context - DML context to use for the evalution of this statement

Throws:

EvaluationException