Package org.apache.storm.metricstore.rocksdb

Interface ReadOnlyStringMetadataCache

All Known Subinterfaces:

WritableStringMetadataCache

All Known Implementing Classes:

StringMetadataCache

public interface ReadOnlyStringMetadataCache

The read-only interface to a StringMetadataCache allowed to be used by any thread.

Method Summary

Modifier and Type	Method	Description
boolean	contains(Integer stringId)	Determines if a string Id is contained in the cache.
org.apache.storm.metricstore.rocksdb.StringMetadata	get(String s)	Get the string metadata from the cache.
String	getMetadataString(Integer stringId)	Returns the string matching the string Id if in the cache.

Method Details

get

org.apache.storm.metricstore.rocksdb.StringMetadata get(String s)

Get the string metadata from the cache.

Parameters:

s - The string to look for

Returns:

the metadata associated with the string or null if not found

getMetadataString

String getMetadataString(Integer stringId)

Returns the string matching the string Id if in the cache.

Parameters:

stringId - The string Id to check

Returns:

the associated string if the Id is in the cache, null otherwise

contains

boolean contains(Integer stringId)

Determines if a string Id is contained in the cache.

Parameters:

stringId - The string Id to check

Returns:

true if the Id is in the cache, false otherwise