proper.imp
Class Indexer

java.lang.Object
  proper.core.ProperObject
      proper.imp.Indexer

All Implemented Interfaces:

ProperInterface

public class Indexer
extends ProperObject

This class interpretes the "verbal" indexes for files, e.g. "first" or "last", and provides methods for checking indexes etc.

Version:

$Revision: 1.2 $

Author:

FracPete

Field Summary

Fields inherited from interface proper.core.ProperInterface

VERSION

Constructor Summary

Indexer()
initializes the object

Method Summary

void	addSplitIndexId(Data d, int index) sets for the given predicate the index where a split-id was inserted (necessary for the Namer!)
int	getIndex(Data d, java.lang.String indexStr) determines the index for the given predicate and index-String
int	getIndexCount(java.lang.String name) returns the number of indexes the given predicate/list has
java.lang.String	getIndexes() returns the "verbal" indexes used for determining indexes (this is the original set string!)
java.util.Vector	getIndexes(java.lang.String name) returns the "processed" indexes for the given predicate/list
java.util.Vector	getIndexNames() returns all names where there are indexes stored
java.util.Vector	getListsWithIndex() returns a vector with names of lists that contain an index
java.lang.String	getProcessedIndexes() returns the processed "verbal" indexes
java.lang.String	getProcessedIndexes(java.lang.String name) returns the processed "verbal" indexes for the given predicate/list
Traverser	getTraverser() returns the currently used traverser
boolean	isIndex(Data d, int index) checks whether the given index is an id index of the given predicate
boolean	isSplitIndexId(Data d, int index) checks whether the given index contains an id from a predicate split
boolean	keyIsInt() checks whether the key used in the predicates is an Integer
void	removeNullIndexes() removes predicates that have a NULL in an index
void	setAddClassLabel(boolean addClassLabel, boolean onlyForSingles) whether the class label was added for the current predicates (necessary for the calculation of the index!)
void	setIndexes(java.lang.String indexes) sets the "verbal" indexes and does the initialization
void	setTraverser(Traverser traverser) sets the traverser to access the current predicates and initializes

Methods inherited from class proper.core.ProperObject

addListener, addOutput, classInVerbose, debugprint, debugprint, debugprint, debugprint, debugprintln, debugprintln, debugprintln, debugprintln, debugprintln, getListeners, getRuntime, getVerbose, getVerboseLevel, getVerboseLevelForClass, getVerboseString, getVerboseStringForClass, notifyListener, notifyListeners, print, print, print, print, println, println, println, println, println, printMemory, removeListener, setOutput, setVerbose, setVerboseLevel, setVerboseString, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Indexer

public Indexer()

initializes the object

See Also:

Import

Method Detail

setIndexes

public void setIndexes(java.lang.String indexes)

sets the "verbal" indexes and does the initialization

getIndexes

public java.lang.String getIndexes()

returns the "verbal" indexes used for determining indexes (this is the original set string!)

getIndexes

public java.util.Vector getIndexes(java.lang.String name)

returns the "processed" indexes for the given predicate/list

getProcessedIndexes

public java.lang.String getProcessedIndexes()

returns the processed "verbal" indexes

getProcessedIndexes

public java.lang.String getProcessedIndexes(java.lang.String name)

returns the processed "verbal" indexes for the given predicate/list

getIndexCount

public int getIndexCount(java.lang.String name)

returns the number of indexes the given predicate/list has

getIndexNames

public java.util.Vector getIndexNames()

returns all names where there are indexes stored

setTraverser

public void setTraverser(Traverser traverser)

sets the traverser to access the current predicates and initializes

getTraverser

public Traverser getTraverser()

returns the currently used traverser

setAddClassLabel

public void setAddClassLabel(boolean addClassLabel,
                             boolean onlyForSingles)

whether the class label was added for the current predicates (necessary for the calculation of the index!)

Parameters:

addClassLabel - whether the class label was added

onlyForSingles - if TRUE the the class label was only added in predicates that had only one argument

isIndex

public boolean isIndex(Data d,
                       int index)

checks whether the given index is an id index of the given predicate

getIndex

public int getIndex(Data d,
                    java.lang.String indexStr)

determines the index for the given predicate and index-String

removeNullIndexes

public void removeNullIndexes()

removes predicates that have a NULL in an index

keyIsInt

public boolean keyIsInt()
                 throws java.lang.Exception

checks whether the key used in the predicates is an Integer

Throws:

java.lang.Exception - throws an exception if there are no predicates with indexes

getListsWithIndex

public java.util.Vector getListsWithIndex()

returns a vector with names of lists that contain an index

addSplitIndexId

public void addSplitIndexId(Data d,
                            int index)

sets for the given predicate the index where a split-id was inserted (necessary for the Namer!)

isSplitIndexId

public boolean isSplitIndexId(Data d,
                              int index)

checks whether the given index contains an id from a predicate split