org.quattor.pan.dml.operators

Class SetValue

java.lang.Object

org.quattor.pan.dml.AbstractOperation

org.quattor.pan.dml.operators.SetValue

All Implemented Interfaces:

Operation

Direct Known Subclasses:

SetSelf

public class SetValue
extends AbstractOperation

Implements a special operation to allow a result to be assigned to a variable. This is generated by the compiler, but is not explicitly visible in the pan language.

Author:

loomis

Field Summary

Fields

Modifier and Type	Field and Description
protected String	identifier

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

ops, sourceRange

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SetValue(SourceRange sourceRange, String identifier, Operation... operations)

Method Summary

Methods

Modifier and Type	Method and Description
protected static void	checkStaticIndexes(SourceRange sourceRange, Operation... operations)
Element	execute(Context context) Execute this operation within the given context.
Element	execute(Context context, Element result)
static SetValue	getInstance(SourceRange sourceRange, String identifier, Operation... operations)
static SetValue	getInstance(Variable v)
String	toString() Default string representation of an operation is the class' simple name.
protected void	validName(String name) A utility method to determine if the variable name collides with one of the reserved 'automatic' variables.

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

Field Detail

identifier

protected String identifier

Constructor Detail

SetValue

protected SetValue(SourceRange sourceRange,
        String identifier,
        Operation... operations)
            throws SyntaxException

Throws:

SyntaxException

Method Detail

checkStaticIndexes

protected static void checkStaticIndexes(SourceRange sourceRange,
                      Operation... operations)
                                  throws SyntaxException

Throws:

SyntaxException

validName

protected void validName(String name)
                  throws SyntaxException

A utility method to determine if the variable name collides with one of the reserved 'automatic' variables.

Parameters:

name - variable name to check

Throws:

SyntaxException

getInstance

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

Throws:

SyntaxException

getInstance

public static SetValue getInstance(Variable v)
                            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

execute

public Element execute(Context context,
              Element result)

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