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A driver for DataStax Enterprise (DSE)
and Apache Cassandra 1.2+ clusters that works exclusively with the
Cassandra Query Language version 3 (CQL3) and Cassandra's binary protocol,
supporting DSE-specific features such as geospatial types, DSE Graph and DSE authentication.
/*
* Copyright (C) 2012-2017 DataStax Inc.
*
* This software can be used solely with DataStax Enterprise. Please consult the license at
* http://www.datastax.com/terms/datastax-dse-driver-license-terms
*/
package com.datastax.driver.core;
/**
* A listing of features that may or not apply to a given {@link ProtocolVersion}.
*/
enum ProtocolFeature {
/**
* The capability of updating a prepared statement if the result's metadata changes at runtime (for example, if the
* query is a {@code SELECT *} and the table is altered).
*/
PREPARED_METADATA_CHANGES,
//
;
/**
* Determines whether or not the input version supports ths feature.
*
* @param version the version to test against.
* @return true if supported, false otherwise.
*/
boolean isSupportedBy(ProtocolVersion version) {
switch (this) {
case PREPARED_METADATA_CHANGES:
return version == ProtocolVersion.V5;
default:
return false;
}
}
}