Example usage for com.mongodb MapReduceCommand setReadPreference

Introduction

In this page you can find the example usage for com.mongodb MapReduceCommand setReadPreference.

Prototype

public void setReadPreference(@Nullable final ReadPreference preference) 

Source Link

Document

Sets the read preference for this command.

Usage

From source file:org.mongodb.morphia.MapReduceOptions.java

License:Apache License

@SuppressWarnings("deprecation")
MapReduceCommand toCommand(final Mapper mapper) {
    if (query.getOffset() != 0 || query.getFieldsObject() != null) {
        throw new QueryException("mapReduce does not allow the offset/retrievedFields query ");
    }//from  w w  w .  jav a2  s  . c o  m

    final DBCollection dbColl = inputCollection != null
            ? getQuery().getCollection().getDB().getCollection(inputCollection)
            : query.getCollection();
    final String target = outputCollection != null ? outputCollection
            : mapper.getMappedClass(resultType).getCollectionName();

    final MapReduceCommand command = new MapReduceCommand(dbColl, map, reduce, target, outputType,
            query.getQueryObject());
    command.setBypassDocumentValidation(bypassDocumentValidation);
    command.setCollation(collation);
    command.setFinalize(finalize);
    command.setJsMode(jsMode);
    command.setLimit(limit);
    command.setMaxTime(maxTimeMS, TimeUnit.MILLISECONDS);
    command.setOutputDB(outputDB);
    command.setReadPreference(readPreference);
    command.setScope(scope);
    command.setSort(query.getSortObject());
    command.setVerbose(verbose);

    return command;
}

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