org.quattor.pan.dml.operators
Class Variable

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

All Implemented Interfaces:

Operation

Direct Known Subclasses:

NestedVariable, SimpleVariable

public abstract class Variable
extends AbstractOperation

Looks up and potentially dereferences a variable in the execution context.

Author:

loomis

Field Summary

protected java.lang.String	identifier
protected boolean	lookupOnly

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

ops, sourceRange

Constructor Summary

protected

Variable(SourceRange sourceRange, java.lang.String identifier, boolean lookupOnly, Operation... operations)

Method Summary

static Variable	getInstance(SourceRange sourceRange, java.lang.String identifier, boolean lookupOnly, Operation... operations)
static Variable	getInstance(SourceRange sourceRange, java.lang.String identifier, Operation... operations)
static Variable	getInstance(Variable v, boolean lookupOnly)

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

calculateArgs, calculateTerms, checkInvalidSelfContext, checkRestrictedContext, execute, getOperations, getSourceRange, toString

Methods inherited from class java.lang.Object

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

Field Detail

identifier

protected final java.lang.String identifier

lookupOnly

protected final boolean lookupOnly

Constructor Detail

Variable

protected Variable(SourceRange sourceRange,
                   java.lang.String identifier,
                   boolean lookupOnly,
                   Operation... operations)

Method Detail

getInstance

public static Variable getInstance(SourceRange sourceRange,
                                   java.lang.String identifier,
                                   Operation... operations)

getInstance

public static Variable getInstance(SourceRange sourceRange,
                                   java.lang.String identifier,
                                   boolean lookupOnly,
                                   Operation... operations)

getInstance

public static Variable getInstance(Variable v,
                                   boolean lookupOnly)