19 lines
534 B
Java
19 lines
534 B
Java
package it.cavallium.dbengine.database.collections;
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import java.io.IOException;
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public interface JoinerBlocking<KEY, DB_VALUE, JOINED_VALUE> {
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interface ValueGetterBlocking<KEY, VALUE> {
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VALUE get(KEY key) throws IOException;
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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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JOINED_VALUE join(ValueGetterBlocking<KEY, DB_VALUE> dbValueGetter, DB_VALUE value) throws IOException;
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}
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