Package org.apache.hadoop.hdfs.server.federation.store.records

Class Query<T extends BaseRecord>

java.lang.Object

org.apache.hadoop.hdfs.server.federation.store.records.Query<T>

Type Parameters:

T - Type of the record to query.

public class Query<T extends BaseRecord>
extends Object

Check if a record matches a query. The query is usually a partial record.

Constructor Summary

Constructors

Constructor	Description
Query(T part)	Create a query to search for a partial record.

Method Summary

Modifier and Type	Method	Description
T	getPartial()	Get the partial record used to query.
boolean	matches(T other)	Check if a record matches the primary keys or the partial record.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

Query

public Query(T part)

Create a query to search for a partial record.

Parameters:

part - It defines the attributes to search.

Method Details

getPartial

public T getPartial()

Get the partial record used to query.

Returns:

The partial record used for the query.

matches

public boolean matches(T other)

Check if a record matches the primary keys or the partial record.

Parameters:

other - Record to check.

Returns:

If the record matches. Don't match if there is no partial.

toString

public String toString()

Overrides:

toString in class Object