/* This file is part of VoltDB.
* Copyright (C) 2008-2010 VoltDB L.L.C.
*
* VoltDB 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 3 of the License, or
* (at your option) any later version.
*
* VoltDB 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 VoltDB. If not, see <http://www.gnu.org/licenses/>.
*/
package org.voltdb.types;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
/**
*
*/
public enum ConstraintType {
FOREIGN_KEY (0),
MAIN (1),
UNIQUE (2),
CHECK (3),
PRIMARY_KEY (4),
NOT_NULL(5);
ConstraintType(int val) {
assert (this.ordinal() == val) :
"Enum element " + this.name() +
" in position " + this.ordinal() +
" instead of position " + val;
}
public int getValue() {
return this.ordinal();
}
private static final Map<Integer, ConstraintType> idx_lookup = new HashMap<Integer, ConstraintType>();
private static final Map<String, ConstraintType> name_lookup = new HashMap<String, ConstraintType>();
static {
for (ConstraintType vt : EnumSet.allOf(ConstraintType.class)) {
ConstraintType.idx_lookup.put(vt.ordinal(), vt);
ConstraintType.name_lookup.put(vt.name().toLowerCase(), vt);
}
}
public static Map<Integer, ConstraintType> getIndexMap() {
return idx_lookup;
}
public static Map<String, ConstraintType> getNameMap() {
return name_lookup;
}
public static ConstraintType get(Integer idx) {
assert(idx >= 0);
ConstraintType ret = ConstraintType.idx_lookup.get(idx);
//
// TODO: We probably should have an INVALID type like with the others...
//
return (ret);
//return (ret == null ? ConstraintType.INVALID : ret);
}
public static ConstraintType get(String name) {
ConstraintType ret = ConstraintType.name_lookup.get(name.toLowerCase());
return (ret);
//return (ret == null ? ConstraintType.INVALID : ret);
}
}