import com.sun.corba.se.impl.encoding.BufferManagerReadGrow; //导入依赖的package包/类
public static BufferManagerRead newBufferManagerRead(
        GIOPVersion version, byte encodingVersion, ORB orb) {

    // REVISIT - On the reading side, shouldn't we monitor the incoming
    // fragments on a given connection to determine what fragment size
    // they're using, then use that ourselves?

    if (encodingVersion != Message.CDR_ENC_VERSION) {
        return new BufferManagerReadGrow(orb);
    }

    switch (version.intValue())
    {
        case GIOPVersion.VERSION_1_0:
            return new BufferManagerReadGrow(orb);
        case GIOPVersion.VERSION_1_1:
        case GIOPVersion.VERSION_1_2:
            // The stream reader can handle fragmented and
            // non fragmented messages
            return new BufferManagerReadStream(orb);
        default:
            // REVISIT - what is appropriate?
            throw new INTERNAL("Unknown GIOP version: "
                               + version);
    }
}
 

import com.sun.corba.se.impl.encoding.BufferManagerReadGrow; //导入依赖的package包/类
public static BufferManagerRead defaultBufferManagerRead(ORB orb) {
    return new BufferManagerReadGrow(orb);
}