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package eu.dnetlib.oai.sets;
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import java.util.List;
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import eu.dnetlib.oai.info.SetInfo;
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/**
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* Collection of sets.
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*
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* @author michele
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*/
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public interface SetCollection {
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/**
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* Get all sets.
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*
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* @return list of SetInfo instances
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*/
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List<SetInfo> getAllSets(boolean enabledOnly, final String publisherDBName);
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/**
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* Test if a set is in this collection.
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*
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* @param set set spec
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* @return true if the set is in this collection
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*/
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boolean containSet(final String set, final String publisherDBName);
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/**
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* Test if a set is in this collection.
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*
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* @param set set spec
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* @return true if the set is in this collection
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*/
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boolean containEnabledSet(final String set, final String publisherDBName);
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/**
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* Obtains the set query.
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*
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* @param set set spec
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* @return set CQL query
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*/
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String getSetQuery(final String set, final String publisherDBName);
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/**
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* Gets the number of elements in the set with the given set spec for the given metadata prefix.
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*
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* @param setSpec
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* @param mdPrefix
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* @return -1 if the number of elements is unknown, 0 if the set is empty, a positive number otherwise.
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*/
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int count(final String setSpec, final String mdPrefix, final String publisherDBName);
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}
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