/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. 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 org.hyperic.hq.appdef.shared.pager;
import org.hyperic.hq.appdef.shared.AppdefEntityID;
/** Pager Processor filter employed during paging of AppdefEntityIDs
* and compares each one to a default set of AppdefEntityIDs -
* ("the exclusionary set").
*/
public class AppdefPagerFilterExclude implements AppdefPagerFilter {
private AppdefEntityID[] exclusionarySet;
private boolean exclusive;
private int filterCount;
public AppdefEntityID[] getExclusionarySet () { return exclusionarySet; }
public int getFilterCount () { return filterCount; }
public boolean isExclusive () { return exclusive; }
public AppdefPagerFilterExclude ( AppdefEntityID[] excludes ) {
this.exclusionarySet = excludes;
this.exclusive = true;
}
public AppdefPagerFilterExclude ( AppdefEntityID[] excludes, boolean negate ) {
this.exclusionarySet = excludes;
this.exclusive = (! negate);
}
/** Evaluate an object against this filter.
* @param o - object instance of AppdefEntityID
* @return flag - true if caught (unless negated)
*/
public boolean isCaught ( Object o ) {
if (! (o instanceof AppdefEntityID)) {
throw new IllegalArgumentException("Argument must be a valid "+
"instance of AppdefEntityID.");
}
AppdefEntityID entity = (AppdefEntityID) o;
return exclusive == isInSet (entity);
}
private boolean isInSet ( AppdefEntityID entity ) {
for (int i=0;i<exclusionarySet.length;i++) {
if ( exclusionarySet[i].equals(entity) ) {
return true;
}
}
return false;
}
}