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yacy_search_server/source/net/yacy/ai/greedy/AbstractFinding.java

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// AbstractFinding.java
// (C) 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 03.12.2009 on http://yacy.net;
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate: 2009-05-28 01:51:34 +0200 (Do, 28 Mai 2009) $
// $LastChangedRevision: 5988 $
// $LastChangedBy: orbiter $
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package net.yacy.ai.greedy;
import java.util.Comparator;
public abstract class AbstractFinding<SpecificRole extends Role> implements Finding<SpecificRole>, Comparator<Finding<SpecificRole>>, Comparable<Finding<SpecificRole>>, Cloneable {
private SpecificRole role;
private int priority;
/**
* create a new finding for a given role
* the priority is fixed in the beginning because is results from a premise
* that invoked a special finding computation set
* @param role
* @param priority
*/
public AbstractFinding(SpecificRole role, int priority) {
this.role = role;
this.priority = priority;
}
public abstract Object clone();
/**
* get the finding priority
* @return
*/
public int getPriority() {
return this.priority;
}
/**
* set the current priority
* This may only be used internally as part of the engine process to create a result queue
*/
public void setPriority(int newPriority) {
this.priority = newPriority;
}
/**
* get the finding role
* @return
*/
public SpecificRole getRole() {
return this.role;
}
public int compare(Finding<SpecificRole> f1, Finding<SpecificRole> f2) {
int p1 = f1.getPriority();
int p2 = f2.getPriority();
if (p1 < p2) return 1;
if (p1 > p2) return -1;
return 0;
}
public int compareTo(Finding<SpecificRole> o) {
return compare(this, o);
}
public abstract boolean equals(Object other);
public abstract int hashCode();
}