org.quattor.pan.statement
Class ComputedAssignmentStatement

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

Direct Known Subclasses:

AbsoluteAssignmentStatement, RelativeAssignmentStatement

public abstract class ComputedAssignmentStatement
extends AssignmentStatement

Assigns a constant or computed value to a path. If the computed value is Null, then the corresponding path will be removed. This is an abstract super class for absolute and relative assignment statements.

Author:

loomis

Field Summary

protected Operation

dml

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

conditional, modifiable, path

Constructor Summary

protected

ComputedAssignmentStatement(SourceRange sourceRange, Path path, Operation dml, boolean conditional, boolean modifiable) This constructor creates a new AssignmentStatement which assigns a constant value (Element) to the associated path.

Method Summary

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

createAssignmentStatement, createAssignmentStatement, isAbsolute, isRelative

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

execute, getSourceRange

Methods inherited from class java.lang.Object

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

Field Detail

dml

protected final Operation dml

Constructor Detail

ComputedAssignmentStatement

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

This constructor creates a new AssignmentStatement which assigns a constant value (Element) 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