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package edu.caltech.nanodb.commands;
import edu.caltech.nanodb.plannodes.PlanNode;
import edu.caltech.nanodb.server.NanoDBServer;
/**
* <p>
* This command object represents a <tt>DUMP INDEX</tt> command issued against
* the database. <tt>DUMP INDEX</tt> commands are pretty simple, having a
* single form: <tt>DUMP INDEX ... ON TABLE ... [TO FILE ...] [FORMAT ...]</tt>.
* </p>
*/
public class DumpIndexCommand extends DumpCommand {
/** The name of the index to dump. */
private String indexName;
/** The name of the table containing the index to dump. */
private String tableName;
public DumpIndexCommand(String indexName, String tableName,
String fileName, String format) {
super(fileName, format);
if (indexName == null)
throw new IllegalArgumentException("indexName cannot be null");
if (tableName == null)
throw new IllegalArgumentException("tableName cannot be null");
this.indexName = indexName;
this.tableName = tableName;
}
/**
* Get the name of the table containing the index to be dumped.
*
* @return the name of the table containing the index to dump
*/
public String getTableName() {
return tableName;
}
/**
* Get the name of the index to be dumped.
*
* @return the name of the index to dump
*/
public String getIndexName() {
return indexName;
}
@Override
protected PlanNode prepareDumpPlan(NanoDBServer server) {
// TODO: Index scan!
return null;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("DumpTableCommand[table=");
sb.append(tableName);
if (fileName != null) {
sb.append(", filename=\"");
sb.append(fileName);
sb.append("\"");
}
if (format != null) {
sb.append(", format=");
sb.append(format);
}
sb.append(']');
return sb.toString();
}
}