com.sap.cds.jdbc.generic.GenericSearchResolver Maven / Gradle / Ivy
/************************************************************************
* © 2020-2024 SAP SE or an SAP affiliate company. All rights reserved. *
************************************************************************/
package com.sap.cds.jdbc.generic;
import static com.sap.cds.DataStoreConfiguration.SEARCH_MODE_LOCALIZED_ASSOC;
import static com.sap.cds.impl.localized.LocaleUtils.hasLocalizedElements;
import java.util.Collection;
import java.util.HashSet;
import java.util.Locale;
import com.sap.cds.DataStoreConfiguration;
import com.sap.cds.jdbc.spi.SearchResolver;
import com.sap.cds.ql.cqn.CqnElementRef;
import com.sap.cds.ql.cqn.CqnPredicate;
import com.sap.cds.ql.cqn.CqnSelect;
import com.sap.cds.reflect.CdsModel;
import com.sap.cds.reflect.CdsStructuredType;
/**
* A {@link SearchResolver} implementation for all generic SQL databases except
* HANA. It either uses the localized_ view generated by the CDS compiler
* directly. In case each localized element can be resolved by a 'localized' the
* search expression is resolved via this association at runtime.
*/
public class GenericSearchResolver extends AbstractSearchResolver {
public GenericSearchResolver(DataStoreConfiguration config, CdsModel cdsModel, Locale locale) {
super(config, cdsModel, locale);
}
@Override
protected void resolve(CqnSelect select, CqnPredicate search, CdsStructuredType targetType,
Collection searchableRefs) {
Collection badRefs = new HashSet<>();
boolean languageIsGiven = locale != null;
// search non-localized view and additionally texts entity via association
// "localized"
final boolean resolveLocalizedViaAssociation = languageIsGiven
&& hasLocalizedElements(targetType, searchableRefs)
&& allLocalizedElementsAreReachableViaLocalizedAssociation(targetType, searchableRefs, badRefs)
&& !hasAliasedLocalizedElementsInView(targetType, searchableRefs, badRefs);
if (!resolveLocalizedViaAssociation) {
resolveUsingLocalizedViewWithLike(select, search, targetType, searchableRefs);
} else {
resolveUsingLocalizedAssociationWithLike(select, search, targetType, searchableRefs);
}
}
@Override
protected String defaultSearchMode() {
return SEARCH_MODE_LOCALIZED_ASSOC;
}
}