org.apache.manifoldcf.crawler.jobs
Class HopCount.Answer

java.lang.Object
  org.apache.manifoldcf.crawler.jobs.HopCount.Answer

Enclosing class:

HopCount

protected static class HopCount.Answer
extends java.lang.Object

This class represents an answer - which consists both of an answer value, and also the dependencies of that answer (i.e. the add dependencies and delete dependencies).

Field Summary

protected int	answer The answer value
protected java.util.HashMap	deleteDependencies This is the set of delete dependencies.

Constructor Summary

HopCount.Answer()
Constructor.

HopCount.Answer(HopCount.Answer other)

HopCount.Answer(int value)

HopCount.Answer(int answer, DeleteDependency[] deleteDeps)
Set an answer from initial data.

Method Summary

int	countDeleteDependencies() Get the number of delete dependencies
void	duplicate(HopCount.Answer other) Copy the answer value from another answer object
int	getAnswer() Get the current answer value.
java.util.Iterator	getDeleteDependencies() Iterate over the delete dependencies.
boolean	hasDependency(DeleteDependency dep) Check if a delete dependency is present
void	initialize(int value) Initialize this answer object.
void	merge(HopCount.Answer childAnswer, boolean isIncrementingLink, java.lang.String linkType, java.lang.String parentIDHash, java.lang.String childIDHash) Update the current answer, using a child link's information and answer.
void	setAnswer(int answer, DeleteDependency[] deleteDeps) Set an answer from initial data.
protected void	setAnswerFromChild(int newAnswer, java.util.HashMap childDeleteDependencies, java.lang.String linkType, java.lang.String parentIDHash, java.lang.String childIDHash) Set answer from child

Methods inherited from class java.lang.Object

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

Field Detail

answer

protected int answer

The answer value

deleteDependencies

protected java.util.HashMap deleteDependencies

This is the set of delete dependencies. It is keyed by a DeleteDependency object.

Constructor Detail

HopCount.Answer

public HopCount.Answer()

Constructor.

HopCount.Answer

public HopCount.Answer(HopCount.Answer other)

HopCount.Answer

public HopCount.Answer(int value)

HopCount.Answer

public HopCount.Answer(int answer,
                       DeleteDependency[] deleteDeps)

Set an answer from initial data.

Method Detail

getAnswer

public int getAnswer()

Get the current answer value.

countDeleteDependencies

public int countDeleteDependencies()

Get the number of delete dependencies

getDeleteDependencies

public java.util.Iterator getDeleteDependencies()

Iterate over the delete dependencies.

hasDependency

public boolean hasDependency(DeleteDependency dep)

Check if a delete dependency is present

initialize

public void initialize(int value)

Initialize this answer object. This sets the answer value to ANSWER_INFINITY and clears the maps.

duplicate

public void duplicate(HopCount.Answer other)

Copy the answer value from another answer object

merge

public void merge(HopCount.Answer childAnswer,
                  boolean isIncrementingLink,
                  java.lang.String linkType,
                  java.lang.String parentIDHash,
                  java.lang.String childIDHash)

Update the current answer, using a child link's information and answer. This method basically decides if the child is relevant, and if so merges the answer from the child together with the current value stored here.

Parameters:

childAnswer - is the current answer found for the child.

isIncrementingLink - is true if this link is the kind being counted, and thus increments the hopcount.

linkType - is the type of THIS link (for building appropriate delete dependency).

parentIDHash - is the hash of the parent document id for THIS link.

childIDHash - is the hash of the child document id for THIS link.

setAnswerFromChild

protected void setAnswerFromChild(int newAnswer,
                                  java.util.HashMap childDeleteDependencies,
                                  java.lang.String linkType,
                                  java.lang.String parentIDHash,
                                  java.lang.String childIDHash)

Set answer from child

setAnswer

public void setAnswer(int answer,
                      DeleteDependency[] deleteDeps)

Set an answer from initial data.