org.apache.cassandra.cql3.statements.CFStatement Maven / Gradle / Ivy
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cassandra.cql3.statements;
import org.apache.cassandra.cql3.CFName;
import org.apache.cassandra.service.ClientState;
import org.apache.cassandra.exceptions.InvalidRequestException;
/**
* Abstract class for statements that apply on a given column family.
*/
public abstract class CFStatement extends ParsedStatement
{
protected final CFName cfName;
protected CFStatement(CFName cfName)
{
this.cfName = cfName;
}
public void prepareKeyspace(ClientState state) throws InvalidRequestException
{
if (!cfName.hasKeyspace())
{
// XXX: We explicitely only want to call state.getKeyspace() in this case, as we don't want to throw
// if not logged in any keyspace but a keyspace is explicitely set on the statement. So don't move
// the call outside the 'if' or replace the method by 'prepareKeyspace(state.getKeyspace())'
cfName.setKeyspace(state.getKeyspace(), true);
}
}
// Only for internal calls, use the version with ClientState for user queries
public void prepareKeyspace(String keyspace)
{
if (!cfName.hasKeyspace())
cfName.setKeyspace(keyspace, true);
}
public String keyspace()
{
assert cfName.hasKeyspace() : "The statement hasn't be prepared correctly";
return cfName.getKeyspace();
}
public String columnFamily()
{
return cfName.getColumnFamily();
}
}