25 lines
586 B
Java
25 lines
586 B
Java
package it.cavallium.dbengine.database.collections;
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import reactor.core.publisher.Mono;
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public interface Joiner<KEY, DB_VALUE, JOINED_VALUE> {
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interface ValueGetter<KEY, VALUE> {
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/**
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* Can return Mono error IOException
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*/
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Mono<VALUE> get(KEY key);
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}
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/**
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* Warning! You must only join with immutable data to ensure data correctness.
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* Good examples: message id, send date, ...
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* Bad examples: message content, views, edited, ...
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*
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* Can return Mono error IOException
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*/
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Mono<JOINED_VALUE> join(ValueGetter<KEY, DB_VALUE> dbValueGetter, DB_VALUE value);
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}
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