/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero 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;
/**
* Specifies how to lookup on Table Index.
*/
public enum IndexLookupType {
INVALID (0, "?"),
EQ (1, "="),
GT (2, ">"),
GTE (3, ">="),
LT (4, "<"),
LTE (5, "<="),
GEO_CONTAINS (6, "contains");
private final String m_symbol;
IndexLookupType(int val, String symbol) {
m_symbol = symbol;
assert (this.ordinal() == val) :
"Enum element " + this.name() +
" in position " + this.ordinal() +
" instead of position " + val;
}
public int getValue() {
return this.ordinal();
}
public String getSymbol() {
return m_symbol;
}
protected static final Map<Integer, IndexLookupType> idx_lookup = new HashMap<Integer, IndexLookupType>();
protected static final Map<String, IndexLookupType> name_lookup = new HashMap<String, IndexLookupType>();
static {
for (IndexLookupType vt : EnumSet.allOf(IndexLookupType.class)) {
IndexLookupType.idx_lookup.put(vt.ordinal(), vt);
IndexLookupType.name_lookup.put(vt.name().toLowerCase().intern(), vt);
}
}
public static Map<Integer, IndexLookupType> getIndexMap() {
return idx_lookup;
}
public static Map<String, IndexLookupType> getNameMap() {
return name_lookup;
}
public static IndexLookupType get(Integer idx) {
IndexLookupType ret = IndexLookupType.idx_lookup.get(idx);
return (ret == null ? IndexLookupType.INVALID : ret);
}
public static IndexLookupType get(String name) {
IndexLookupType ret = IndexLookupType.name_lookup.get(name.toLowerCase().intern());
return (ret == null ? IndexLookupType.INVALID : ret);
}
}