org.quattor.pan.dml.operators
Class Assign

java.lang.Object
  org.quattor.pan.dml.AbstractOperation
      org.quattor.pan.dml.operators.Assign

All Implemented Interfaces:

Operation

public final class Assign
extends AbstractOperation

Implements the assignment operation within a DML block. This operation actually calculates the result, then uses a series of SetValue operations to assign this value to one or more variables.

Author:

loomis

Field Summary

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

ops, sourceRange

Constructor Summary

Assign(SourceRange sourceRange, Operation... operations)

Method Summary

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

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

Assign

public Assign(SourceRange sourceRange,
              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 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