org.quattor.pan.dml.operators
Class NestedListVariable

java.lang.Object
  org.quattor.pan.dml.AbstractOperation
      org.quattor.pan.dml.operators.ListVariable
          org.quattor.pan.dml.operators.NestedListVariable

All Implemented Interfaces:

Operation

Direct Known Subclasses:

SelfNestedListVariable

public class NestedListVariable
extends ListVariable

Looks up a nested variable in the execution context. There must be at least one index (operation).

Author:

loomis

Field Summary

Fields inherited from class org.quattor.pan.dml.operators.ListVariable

identifier

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

ops, sourceRange

Constructor Summary

NestedListVariable(SourceRange sourceRange, java.lang.String identifier, Operation... operations)

Method Summary

Element	execute(Context context) Execute this operation within the given context.
java.lang.String	toString() Default string representation of an operation is the class' simple name.

Methods inherited from class org.quattor.pan.dml.operators.ListVariable

getInstance, getInstance

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

NestedListVariable

public NestedListVariable(SourceRange sourceRange,
                          java.lang.String identifier,
                          Operation... operations)

Method Detail

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

toString

public java.lang.String toString()

Description copied from class: AbstractOperation

Default string representation of an operation is the class' simple name.

Overrides:

toString in class AbstractOperation

Returns:

string of class' simple name