eric-maynard commented on code in PR #1802:
URL: https://github.com/apache/polaris/pull/1802#discussion_r2127228312
##########
persistence/relational-jdbc/src/main/java/org/apache/polaris/persistence/relational/jdbc/QueryGenerator.java:
##########
@@ -34,38 +37,67 @@
import org.apache.polaris.persistence.relational.jdbc.models.ModelGrantRecord;
import
org.apache.polaris.persistence.relational.jdbc.models.ModelPolicyMappingRecord;
import
org.apache.polaris.persistence.relational.jdbc.models.ModelPrincipalAuthenticationData;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
public class QueryGenerator {
+ private static final Logger log =
LoggerFactory.getLogger(QueryGenerator.class);
+ private final DatabaseType databaseType;
- public static <T> String generateSelectQuery(
+ public QueryGenerator(DatabaseType databaseType) {
+ this.databaseType = databaseType;
+ }
+
+ public DatabaseType getDatabaseType() {
+ return databaseType;
+ }
+
+ public static class PreparedQuery {
+ private final String sql;
+ private final List<Object> parameters;
+
+ public PreparedQuery(String sql, List<Object> parameters) {
+ this.sql = sql;
+ this.parameters = parameters;
+ }
+
+ public String getSql() {
+ return sql;
+ }
+
+ public List<Object> getParameters() {
+ return parameters;
+ }
+ }
+
+ public <T> PreparedQuery generateSelectQuery(
@Nonnull Converter<T> entity, @Nonnull Map<String, Object> whereClause) {
- return generateSelectQuery(entity, generateWhereClause(whereClause));
+
+ String tableName = getTableName(entity.getClass());
+ Map<String, Object> objectMap = entity.toMap(databaseType);
Review Comment:
I wouldn't say it's "very inefficient" to create a map instead of just the
keyset. True, we don't need the values, but I don't really think there's much
of a performance hit here.
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