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Java Object Document Mapper for MongoDB
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package org.mongodb.morphia.query;
/**
* @author Scott Hernandez
*/
public enum UpdateOperator {
SET("$set"),
SET_ON_INSERT("$setOnInsert"),
UNSET("$unset"),
PULL("$pull"),
PULL_ALL("$pullAll"),
PUSH("$push"),
PUSH_ALL("$pushAll"),
ADD_TO_SET("$addToSet"),
ADD_TO_SET_EACH("$addToSet"),
// fake to indicate that the value should be wrapped in an $each
EACH("$each"),
POP("$pop"),
INC("$inc"),
Foo("$foo"),
MAX("$max"),
MIN("$min");
private final String value;
UpdateOperator(final String val) {
value = val;
}
/**
* Creates an UpdateOperator from a String
*
* @param val the value to convert
* @return the UpdateOperator
*/
public static UpdateOperator fromString(final String val) {
for (int i = 0; i < values().length; i++) {
final UpdateOperator fo = values()[i];
if (fo.sameAs(val)) {
return fo;
}
}
return null;
}
/**
* @return the value of the UpdateOperator
*/
public String val() {
return value;
}
private boolean sameAs(final String val) {
return value.equals(val);
}
}