Example usage for com.mongodb QueryOperators NOT

Introduction

In this page you can find the example usage for com.mongodb QueryOperators NOT.

Prototype

String NOT

To view the source code for com.mongodb QueryOperators NOT.

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Usage

From source file:org.nuxeo.ecm.core.storage.mongodb.MongoDBQueryBuilder.java

License:Apache License

protected Object pushDownNot(Object object) {
    if (!(object instanceof DBObject)) {
        throw new QueryParseException("Cannot do NOT on: " + object);
    }/*from  www.j a  v  a 2s .c om*/
    DBObject ob = (DBObject) object;
    Set<String> keySet = ob.keySet();
    if (keySet.size() != 1) {
        throw new QueryParseException("Cannot do NOT on: " + ob);
    }
    String key = keySet.iterator().next();
    Object value = ob.get(key);
    if (!key.startsWith("$")) {
        if (value instanceof DBObject) {
            // push down inside dbobject
            return new BasicDBObject(key, pushDownNot(value));
        } else {
            // k = v -> k != v
            return new BasicDBObject(key, new BasicDBObject(QueryOperators.NE, value));
        }
    }
    if (QueryOperators.NE.equals(key)) {
        // NOT k != v -> k = v
        return value;
    }
    if (QueryOperators.NOT.equals(key)) {
        // NOT NOT v -> v
        return value;
    }
    if (QueryOperators.AND.equals(key) || QueryOperators.OR.equals(key)) {
        // boolean algebra
        // NOT (v1 AND v2) -> NOT v1 OR NOT v2
        // NOT (v1 OR v2) -> NOT v1 AND NOT v2
        String op = QueryOperators.AND.equals(key) ? QueryOperators.OR : QueryOperators.AND;
        List<Object> list = (List<Object>) value;
        for (int i = 0; i < list.size(); i++) {
            list.set(i, pushDownNot(list.get(i)));
        }
        return new BasicDBObject(op, list);
    }
    if (QueryOperators.IN.equals(key) || QueryOperators.NIN.equals(key)) {
        // boolean algebra
        // IN <-> NIN
        String op = QueryOperators.IN.equals(key) ? QueryOperators.NIN : QueryOperators.IN;
        return new BasicDBObject(op, value);
    }
    if (QueryOperators.LT.equals(key) || QueryOperators.GT.equals(key) || QueryOperators.LTE.equals(key)
            || QueryOperators.GTE.equals(key)) {
        // TODO use inverse operators?
        return new BasicDBObject(QueryOperators.NOT, ob);
    }
    throw new QueryParseException("Unknown operator for NOT: " + key);
}

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From source file:org.nuxeo.ecm.core.storage.mongodb.MongoDBQueryBuilder.java

License:Apache License

public DBObject walkLike(Operand lvalue, Operand rvalue, boolean positive, boolean caseInsensitive) {
    FieldInfo fieldInfo = walkReference(lvalue);
    if (!(rvalue instanceof StringLiteral)) {
        throw new QueryParseException("Invalid LIKE/ILIKE, right hand side must be a string: " + rvalue);
    }/* www  .  j a va2 s .  c  o m*/
    // TODO check list fields
    String like = walkStringLiteral((StringLiteral) rvalue);
    String regex = ExpressionEvaluator.likeToRegex(like);

    int flags = caseInsensitive ? Pattern.CASE_INSENSITIVE : 0;
    Pattern pattern = Pattern.compile(regex, flags);
    Object value;
    if (positive) {
        value = pattern;
    } else {
        value = new BasicDBObject(QueryOperators.NOT, pattern);
    }
    return new FieldInfoDBObject(fieldInfo, value);
}

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From source file:org.tinygroup.mongodb.engine.comparemode.impl.IsNotEmptyCompareMode.java

License:GNU General Public License

public BSONObject generateBSONObject(String propertyName, Object value, Context context) {
    BSONObject bsonObject = new BasicDBObject();
    bsonObject.put(QueryOperators.NOT, "");
    return new BasicDBObject(propertyName, bsonObject);
}

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