net.sf.bddbddb.ir.highlevel
Class Load

java.lang.Object
  net.sf.bddbddb.ir.Operation
      net.sf.bddbddb.ir.highlevel.HighLevelOperation
          net.sf.bddbddb.ir.highlevel.Load

All Implemented Interfaces:

IterationElement

public class Load
extends HighLevelOperation

Load

Version:

$Id: Load.java 328 2004-10-16 02:45:30Z joewhaley $

Author:

John Whaley

Field Summary

Fields inherited from class net.sf.bddbddb.ir.Operation

id, TRACE_VERBOSE

Constructor Summary

Load(Relation r0, java.lang.String fileName, boolean tuples)

Method Summary

Operation	copy()
java.lang.String	getExpressionString()
java.lang.String	getFileName()
Relation	getRelationDest()
java.util.List	getSrcs()
boolean	isTuples()
void	replaceSrc(Relation r_old, Relation r_new)
void	setRelationDest(Relation r0)
java.lang.String	toString()
java.lang.Object	visit(HighLevelOperationVisitor i)

Methods inherited from class net.sf.bddbddb.ir.highlevel.HighLevelOperation

visit

Methods inherited from class net.sf.bddbddb.ir.Operation

getNumberOfOperations, getRenames

Methods inherited from class java.lang.Object

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

Constructor Detail

Load

public Load(Relation r0,
            java.lang.String fileName,
            boolean tuples)

Parameters:

r0 -

Method Detail

visit

public java.lang.Object visit(HighLevelOperationVisitor i)

Specified by:

visit in class HighLevelOperation

Parameters:

i - the visitor

Returns:

the result from the visitor

toString

public java.lang.String toString()

Specified by:

toString in class Operation

getExpressionString

public java.lang.String getExpressionString()

Specified by:

getExpressionString in class Operation

Returns:

the expression in string form

getRelationDest

public Relation getRelationDest()

Specified by:

getRelationDest in class Operation

Returns:

the destination relation of this operation, or null

getSrcs

public java.util.List getSrcs()

Specified by:

getSrcs in class Operation

Returns:

the source relation of this operation

copy

public Operation copy()

Specified by:

copy in class Operation

replaceSrc

public void replaceSrc(Relation r_old,
                       Relation r_new)

Specified by:

replaceSrc in class Operation

setRelationDest

public void setRelationDest(Relation r0)

Specified by:

setRelationDest in class Operation

getFileName

public java.lang.String getFileName()

Returns:

the filename

isTuples

public boolean isTuples()

Returns:

whether it is tuples