Package org.apache.heron.spouts.kafka
Class DefaultTopicPatternProvider
- java.lang.Object
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- org.apache.heron.spouts.kafka.DefaultTopicPatternProvider
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- All Implemented Interfaces:
Serializable
,TopicPatternProvider
public class DefaultTopicPatternProvider extends Object implements TopicPatternProvider
the built-in default pattern provider to create a topic pattern out of a regex string- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description DefaultTopicPatternProvider(String regex)
create a provider out of a regular expression string
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Constructor Detail
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DefaultTopicPatternProvider
public DefaultTopicPatternProvider(String regex)
create a provider out of a regular expression string- Parameters:
regex
- topic name regular expression
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Method Detail
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create
public Pattern create()
Description copied from interface:TopicPatternProvider
create the topic matching regex pattern- Specified by:
create
in interfaceTopicPatternProvider
- Returns:
- a matching pattern for topics to subscribe to
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