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/*
* FindBugs - Find Bugs in Java programs
* Copyright (C) 2006, University of Maryland
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.umd.cs.findbugs.filter;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import edu.umd.cs.findbugs.internalAnnotations.StaticConstant;
/**
* @author pugh
*/
public abstract class RelationalOp {
public abstract > boolean check(T x, T y);
final String value;
final String name;
@StaticConstant
private static final Map map = new HashMap();
public static RelationalOp byName(String s) {
RelationalOp relationalOp = map.get(s);
if (relationalOp == null) {
throw new IllegalArgumentException("Could not find relOp named " + s + " in " + map.keySet());
}
return relationalOp;
}
public static Collection values() {
return map.values();
}
/**
* @deprecated Use {@link #RelationalOp(String,String)} instead
*/
@Deprecated
private RelationalOp(String value) {
this(value, "xxx");
}
private RelationalOp(String value, String name) {
this.value = value;
this.name = name;
map.put(name, this);
}
@Override
public String toString() {
return value;
}
public String getName() {
return name;
}
public static final RelationalOp EQ = new RelationalOp("==", "EQ") {
@Override
public > boolean check(T x, T y) {
return x.compareTo(y) == 0;
}
};
public static final RelationalOp LEQ = new RelationalOp("<=", "LEQ") {
@Override
public > boolean check(T x, T y) {
return x.compareTo(y) <= 0;
}
};
public static final RelationalOp NEQ = new RelationalOp("!=", "NEQ") {
@Override
public > boolean check(T x, T y) {
return x.compareTo(y) != 0;
}
};
public static final RelationalOp GEQ = new RelationalOp(">=", "GEQ") {
@Override
public > boolean check(T x, T y) {
return x.compareTo(y) >= 0;
}
};
public static final RelationalOp LT = new RelationalOp("<", "LT") {
@Override
public > boolean check(T x, T y) {
return x.compareTo(y) < 0;
}
};
public static final RelationalOp GT = new RelationalOp(">", "GT") {
@Override
public > boolean check(T x, T y) {
return x.compareTo(y) > 0;
}
};
}