org.datanucleus.store.mongodb.query.expression

Class MongoBooleanExpression

java.lang.Object

org.datanucleus.store.mongodb.query.expression.MongoExpression

org.datanucleus.store.mongodb.query.expression.MongoBooleanExpression

public class MongoBooleanExpression
extends MongoExpression

Representation of a boolean expression in MongoDB queries. Has the DBObject that it represents.

Constructor Summary

Constructors

Constructor and Description
MongoBooleanExpression(MongoBooleanExpression expr1, MongoBooleanExpression expr2, MongoOperator op)
MongoBooleanExpression(MongoFieldExpression fieldExpr, MongoLiteral lit, MongoOperator op) Constructor when the expression represents a comparison, between the field expression and a literal.

Method Summary

Modifier and Type	Method and Description
com.mongodb.BasicDBObject	getDBObject()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MongoBooleanExpression

public MongoBooleanExpression(MongoFieldExpression fieldExpr,
                              MongoLiteral lit,
                              MongoOperator op)

Constructor when the expression represents a comparison, between the field expression and a literal.

Parameters:

fieldExpr - Field Expression

lit - The literal

op - The operator (eq, noteq, lt, gt, etc)

MongoBooleanExpression

public MongoBooleanExpression(MongoBooleanExpression expr1,
                              MongoBooleanExpression expr2,
                              MongoOperator op)

Method Detail

getDBObject

public com.mongodb.BasicDBObject getDBObject()

toString

public String toString()

Overrides:

toString in class Object