co.cask.cdap.etl.api.lookup

Class KeyValueTableLookup

java.lang.Object

co.cask.cdap.etl.api.lookup.KeyValueTableLookup

All Implemented Interfaces:

Lookup<String>

public class KeyValueTableLookup
extends Object
implements Lookup<String>

Lookup implementation for KeyValueTable.

Constructor Summary

Constructors

Constructor and Description
KeyValueTableLookup(KeyValueTable table)

Method Summary

Methods

Modifier and Type	Method and Description
Map<String,String>	lookup(Set<String> keys) Performs a batch lookup.
Map<String,String>	lookup(String... keys) Performs a batch lookup.
String	lookup(String key) Performs a single lookup.

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyValueTableLookup

public KeyValueTableLookup(KeyValueTable table)

Method Detail

lookup

public String lookup(String key)

Description copied from interface: Lookup

Performs a single lookup.

Specified by:

lookup in interface Lookup<String>

Parameters:

key - the key to lookup

Returns:

the value associated with the key

lookup

public Map<String,String> lookup(String... keys)

Description copied from interface: Lookup

Performs a batch lookup.

Specified by:

lookup in interface Lookup<String>

Parameters:

keys - the keys to lookup

Returns:

a map from key to value

lookup

public Map<String,String> lookup(Set<String> keys)

Description copied from interface: Lookup

Performs a batch lookup.

Specified by:

lookup in interface Lookup<String>

Parameters:

keys - the keys to lookup

Returns:

a map from key to value