Parse Enum

ParseEnum.java

import java.util.HashMap;
import java.util.Map;
 
@SuppressWarnings("boxing")
public enum IndexStrategy {
 DEFAULT(0), FASTINDEX(1), FINEGRAINED(2);
 private final int value;
 private IndexStrategy(int value) {
  this.value = value;
 }
 public int getValue() {
  return value;
 }
 private static final Map<Integer, IndexStrategy> intToEnum = new HashMap<Integer, IndexStrategy>();
 static { // Initialize map from constant int to enum constant
  for (IndexStrategy op : values())
   intToEnum.put(op.getValue(), op);
 }
 // Returns Operation for int, or null if int is invalid
 public static IndexStrategy fromInt(int value) {
  return intToEnum.get(value);
 }
}