001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.dbcp2;
018
019import java.sql.Connection;
020import java.sql.DatabaseMetaData;
021import java.sql.ResultSet;
022import java.sql.RowIdLifetime;
023import java.sql.SQLException;
024import java.util.Objects;
025import java.util.concurrent.Callable;
026
027/**
028 * <p>
029 * A base delegating implementation of {@link DatabaseMetaData}.
030 * </p>
031 * <p>
032 * Methods that create {@link ResultSet} objects are wrapped to create {@link DelegatingResultSet} objects and the remaining methods simply call the
033 * corresponding method on the "delegate" provided in the constructor.
034 * </p>
035 *
036 * @since 2.0
037 */
038public class DelegatingDatabaseMetaData implements DatabaseMetaData {
039
040    /** My delegate {@link DatabaseMetaData} */
041    private final DatabaseMetaData databaseMetaData;
042
043    /** The connection that created me. **/
044    private final DelegatingConnection<?> connection;
045
046    /**
047     * Constructs a new instance for the given delegating connection and database meta data.
048     *
049     * @param connection       the delegating connection
050     * @param databaseMetaData the database meta data
051     */
052    public DelegatingDatabaseMetaData(final DelegatingConnection<?> connection, final DatabaseMetaData databaseMetaData) {
053        this.connection = Objects.requireNonNull(connection, "connection");
054        this.databaseMetaData = Objects.requireNonNull(databaseMetaData, "databaseMetaData");
055    }
056
057    @Override
058    public boolean allProceduresAreCallable() throws SQLException {
059        return getB(databaseMetaData::allProceduresAreCallable);
060    }
061
062    @Override
063    public boolean allTablesAreSelectable() throws SQLException {
064        return getB(databaseMetaData::allTablesAreSelectable);
065    }
066
067    @Override
068    public boolean autoCommitFailureClosesAllResultSets() throws SQLException {
069        return getB(databaseMetaData::autoCommitFailureClosesAllResultSets);
070    }
071
072    @Override
073    public boolean dataDefinitionCausesTransactionCommit() throws SQLException {
074        return getB(databaseMetaData::dataDefinitionCausesTransactionCommit);
075    }
076
077    @Override
078    public boolean dataDefinitionIgnoredInTransactions() throws SQLException {
079        return getB(databaseMetaData::dataDefinitionIgnoredInTransactions);
080    }
081
082    @Override
083    public boolean deletesAreDetected(final int type) throws SQLException {
084        return getB(() -> databaseMetaData.deletesAreDetected(type));
085    }
086
087    @Override
088    public boolean doesMaxRowSizeIncludeBlobs() throws SQLException {
089        return getB(databaseMetaData::doesMaxRowSizeIncludeBlobs);
090    }
091
092    @Override
093    public boolean generatedKeyAlwaysReturned() throws SQLException {
094        connection.checkOpen();
095        return getB(() -> Jdbc41Bridge.generatedKeyAlwaysReturned(databaseMetaData));
096    }
097
098    private <T> T get(final Callable<T> s) throws SQLException {
099        return get(s, null);
100    }
101
102    private <T> T get(final Callable<T> s, final T defaultValue) throws SQLException {
103        try {
104            return s.call();
105        } catch (final Exception e) {
106            if (e instanceof SQLException) {
107                handleException((SQLException) e);
108            }
109            return defaultValue;
110        }
111    }
112
113    @Override
114    public ResultSet getAttributes(final String catalog, final String schemaPattern, final String typeNamePattern, final String attributeNamePattern)
115            throws SQLException {
116        return getRS(() -> databaseMetaData.getAttributes(catalog, schemaPattern, typeNamePattern, attributeNamePattern));
117    }
118
119    private boolean getB(final Callable<Boolean> s) throws SQLException {
120        return get(s, false);
121    }
122
123    @Override
124    public ResultSet getBestRowIdentifier(final String catalog, final String schema, final String table, final int scope, final boolean nullable)
125            throws SQLException {
126        return getRS(() -> databaseMetaData.getBestRowIdentifier(catalog, schema, table, scope, nullable));
127    }
128
129    @Override
130    public ResultSet getCatalogs() throws SQLException {
131        return getRS(databaseMetaData::getCatalogs);
132    }
133
134    @Override
135    public String getCatalogSeparator() throws SQLException {
136        return get(databaseMetaData::getCatalogSeparator);
137    }
138
139    @Override
140    public String getCatalogTerm() throws SQLException {
141        return get(databaseMetaData::getCatalogTerm);
142    }
143
144    @Override
145    public ResultSet getClientInfoProperties() throws SQLException {
146        return getRS(databaseMetaData::getClientInfoProperties);
147    }
148
149    @Override
150    public ResultSet getColumnPrivileges(final String catalog, final String schema, final String table, final String columnNamePattern) throws SQLException {
151        return getRS(() -> databaseMetaData.getColumnPrivileges(catalog, schema, table, columnNamePattern));
152    }
153
154    @Override
155    public ResultSet getColumns(final String catalog, final String schemaPattern, final String tableNamePattern, final String columnNamePattern)
156            throws SQLException {
157        return getRS(() -> databaseMetaData.getColumns(catalog, schemaPattern, tableNamePattern, columnNamePattern));
158    }
159
160    @Override
161    public Connection getConnection() throws SQLException {
162        return connection;
163    }
164
165    @Override
166    public ResultSet getCrossReference(final String parentCatalog, final String parentSchema, final String parentTable, final String foreignCatalog,
167            final String foreignSchema, final String foreignTable) throws SQLException {
168        return getRS(() -> databaseMetaData.getCrossReference(parentCatalog, parentSchema, parentTable, foreignCatalog, foreignSchema, foreignTable));
169    }
170
171    @Override
172    public int getDatabaseMajorVersion() throws SQLException {
173        return getI(databaseMetaData::getDatabaseMajorVersion);
174    }
175
176    @Override
177    public int getDatabaseMinorVersion() throws SQLException {
178        return getI(databaseMetaData::getDatabaseMinorVersion);
179    }
180
181    @Override
182    public String getDatabaseProductName() throws SQLException {
183        return get(databaseMetaData::getDatabaseProductName);
184    }
185
186    @Override
187    public String getDatabaseProductVersion() throws SQLException {
188        return get(databaseMetaData::getDatabaseProductVersion);
189    }
190
191    @Override
192    public int getDefaultTransactionIsolation() throws SQLException {
193        return getI(databaseMetaData::getDefaultTransactionIsolation);
194    }
195
196    /**
197     * Gets the underlying database meta data.
198     *
199     * @return The underlying database meta data.
200     */
201    public DatabaseMetaData getDelegate() {
202        return databaseMetaData;
203    }
204
205    @Override
206    public int getDriverMajorVersion() {
207        return databaseMetaData.getDriverMajorVersion();
208    }
209
210    @Override
211    public int getDriverMinorVersion() {
212        return databaseMetaData.getDriverMinorVersion();
213    }
214
215    @Override
216    public String getDriverName() throws SQLException {
217        return get(databaseMetaData::getDriverName);
218    }
219
220    @Override
221    public String getDriverVersion() throws SQLException {
222        return get(databaseMetaData::getDriverVersion);
223    }
224
225    @Override
226    public ResultSet getExportedKeys(final String catalog, final String schema, final String table) throws SQLException {
227        return getRS(() -> databaseMetaData.getExportedKeys(catalog, schema, table));
228    }
229
230    @Override
231    public String getExtraNameCharacters() throws SQLException {
232        return get(databaseMetaData::getExtraNameCharacters);
233    }
234
235    @Override
236    public ResultSet getFunctionColumns(final String catalog, final String schemaPattern, final String functionNamePattern, final String columnNamePattern)
237            throws SQLException {
238        return getRS(() -> databaseMetaData.getFunctionColumns(catalog, schemaPattern, functionNamePattern, columnNamePattern));
239    }
240
241    @Override
242    public ResultSet getFunctions(final String catalog, final String schemaPattern, final String functionNamePattern) throws SQLException {
243        return getRS(() -> databaseMetaData.getFunctions(catalog, schemaPattern, functionNamePattern));
244    }
245
246    private int getI(final Callable<Integer> s) throws SQLException {
247        return get(s, 0);
248    }
249
250    @Override
251    public String getIdentifierQuoteString() throws SQLException {
252        return get(databaseMetaData::getIdentifierQuoteString);
253    }
254
255    @Override
256    public ResultSet getImportedKeys(final String catalog, final String schema, final String table) throws SQLException {
257        return getRS(() -> databaseMetaData.getImportedKeys(catalog, schema, table));
258    }
259
260    @Override
261    public ResultSet getIndexInfo(final String catalog, final String schema, final String table, final boolean unique, final boolean approximate)
262            throws SQLException {
263        return getRS(() -> databaseMetaData.getIndexInfo(catalog, schema, table, unique, approximate));
264    }
265
266    /**
267     * If my underlying {@link ResultSet} is not a {@code DelegatingResultSet}, returns it, otherwise recursively invokes this method on my delegate.
268     * <p>
269     * Hence this method will return the first delegate that is not a {@code DelegatingResultSet}, or {@code null} when no non-{@code DelegatingResultSet}
270     * delegate can be found by traversing this chain.
271     * </p>
272     * <p>
273     * This method is useful when you may have nested {@code DelegatingResultSet}s, and you want to make sure to obtain a "genuine" {@link ResultSet}.
274     * </p>
275     *
276     * @return the innermost database meta data.
277     */
278    public DatabaseMetaData getInnermostDelegate() {
279        DatabaseMetaData m = databaseMetaData;
280        while (m instanceof DelegatingDatabaseMetaData) {
281            m = ((DelegatingDatabaseMetaData) m).getDelegate();
282            if (this == m) {
283                return null;
284            }
285        }
286        return m;
287    }
288
289    @Override
290    public int getJDBCMajorVersion() throws SQLException {
291        return getI(databaseMetaData::getJDBCMajorVersion);
292    }
293
294    @Override
295    public int getJDBCMinorVersion() throws SQLException {
296        return getI(databaseMetaData::getJDBCMinorVersion);
297    }
298
299    private long getL(final Callable<Long> s) throws SQLException {
300        return get(s, 0L);
301    }
302
303    @Override
304    public int getMaxBinaryLiteralLength() throws SQLException {
305        return getI(databaseMetaData::getMaxBinaryLiteralLength);
306    }
307
308    @Override
309    public int getMaxCatalogNameLength() throws SQLException {
310        return getI(databaseMetaData::getMaxCatalogNameLength);
311    }
312
313    @Override
314    public int getMaxCharLiteralLength() throws SQLException {
315        return getI(databaseMetaData::getMaxCharLiteralLength);
316    }
317
318    @Override
319    public int getMaxColumnNameLength() throws SQLException {
320        return getI(databaseMetaData::getMaxColumnNameLength);
321    }
322
323    @Override
324    public int getMaxColumnsInGroupBy() throws SQLException {
325        return getI(databaseMetaData::getMaxColumnsInGroupBy);
326    }
327
328    @Override
329    public int getMaxColumnsInIndex() throws SQLException {
330        return getI(databaseMetaData::getMaxColumnsInIndex);
331    }
332
333    @Override
334    public int getMaxColumnsInOrderBy() throws SQLException {
335        return getI(databaseMetaData::getMaxColumnsInOrderBy);
336    }
337
338    @Override
339    public int getMaxColumnsInSelect() throws SQLException {
340        return getI(databaseMetaData::getMaxColumnsInSelect);
341    }
342
343    @Override
344    public int getMaxColumnsInTable() throws SQLException {
345        return getI(databaseMetaData::getMaxColumnsInTable);
346    }
347
348    @Override
349    public int getMaxConnections() throws SQLException {
350        return getI(databaseMetaData::getMaxConnections);
351    }
352
353    @Override
354    public int getMaxCursorNameLength() throws SQLException {
355        return getI(databaseMetaData::getMaxCursorNameLength);
356    }
357
358    @Override
359    public int getMaxIndexLength() throws SQLException {
360        return getI(databaseMetaData::getMaxIndexLength);
361    }
362
363    /**
364     * @since 2.5.0
365     */
366    @Override
367    public long getMaxLogicalLobSize() throws SQLException {
368        return getL(databaseMetaData::getMaxLogicalLobSize);
369    }
370
371    @Override
372    public int getMaxProcedureNameLength() throws SQLException {
373        return getI(databaseMetaData::getMaxProcedureNameLength);
374    }
375
376    @Override
377    public int getMaxRowSize() throws SQLException {
378        return getI(databaseMetaData::getMaxRowSize);
379    }
380
381    @Override
382    public int getMaxSchemaNameLength() throws SQLException {
383        return getI(databaseMetaData::getMaxSchemaNameLength);
384    }
385
386    @Override
387    public int getMaxStatementLength() throws SQLException {
388        return getI(databaseMetaData::getMaxStatementLength);
389    }
390
391    @Override
392    public int getMaxStatements() throws SQLException {
393        return getI(databaseMetaData::getMaxStatements);
394    }
395
396    @Override
397    public int getMaxTableNameLength() throws SQLException {
398        return getI(databaseMetaData::getMaxTableNameLength);
399    }
400
401    @Override
402    public int getMaxTablesInSelect() throws SQLException {
403        return getI(databaseMetaData::getMaxTablesInSelect);
404    }
405
406    @Override
407    public int getMaxUserNameLength() throws SQLException {
408        return getI(databaseMetaData::getMaxUserNameLength);
409    }
410
411    @Override
412    public String getNumericFunctions() throws SQLException {
413        return get(databaseMetaData::getNumericFunctions);
414    }
415
416    @Override
417    public ResultSet getPrimaryKeys(final String catalog, final String schema, final String table) throws SQLException {
418        return getRS(() -> databaseMetaData.getPrimaryKeys(catalog, schema, table));
419    }
420
421    @Override
422    public ResultSet getProcedureColumns(final String catalog, final String schemaPattern, final String procedureNamePattern, final String columnNamePattern)
423            throws SQLException {
424        return getRS(() -> databaseMetaData.getProcedureColumns(catalog, schemaPattern, procedureNamePattern, columnNamePattern));
425    }
426
427    @Override
428    public ResultSet getProcedures(final String catalog, final String schemaPattern, final String procedureNamePattern) throws SQLException {
429        return getRS(() -> databaseMetaData.getProcedures(catalog, schemaPattern, procedureNamePattern));
430    }
431
432    @Override
433    public String getProcedureTerm() throws SQLException {
434        return get(databaseMetaData::getProcedureTerm);
435    }
436
437    @Override
438    public ResultSet getPseudoColumns(final String catalog, final String schemaPattern, final String tableNamePattern, final String columnNamePattern)
439            throws SQLException {
440        return getRS(() -> Jdbc41Bridge.getPseudoColumns(databaseMetaData, catalog, schemaPattern, tableNamePattern, columnNamePattern));
441    }
442
443    @Override
444    public int getResultSetHoldability() throws SQLException {
445        return getI(databaseMetaData::getResultSetHoldability);
446    }
447
448    @Override
449    public RowIdLifetime getRowIdLifetime() throws SQLException {
450        return get(databaseMetaData::getRowIdLifetime);
451    }
452
453    @SuppressWarnings("resource")
454    private ResultSet getRS(final Callable<ResultSet> s) throws SQLException {
455        connection.checkOpen();
456        return DelegatingResultSet.wrapResultSet(connection, get(s));
457    }
458
459    @Override
460    public ResultSet getSchemas() throws SQLException {
461        return getRS(databaseMetaData::getSchemas);
462    }
463
464    @Override
465    public ResultSet getSchemas(final String catalog, final String schemaPattern) throws SQLException {
466        return getRS(() -> databaseMetaData.getSchemas(catalog, schemaPattern));
467    }
468
469    @Override
470    public String getSchemaTerm() throws SQLException {
471        return get(databaseMetaData::getSchemaTerm);
472    }
473
474    @Override
475    public String getSearchStringEscape() throws SQLException {
476        return get(databaseMetaData::getSearchStringEscape);
477    }
478
479    @Override
480    public String getSQLKeywords() throws SQLException {
481        return get(databaseMetaData::getSQLKeywords);
482    }
483
484    @Override
485    public int getSQLStateType() throws SQLException {
486        return getI(databaseMetaData::getSQLStateType);
487    }
488
489    @Override
490    public String getStringFunctions() throws SQLException {
491        return get(databaseMetaData::getStringFunctions);
492    }
493
494    @Override
495    public ResultSet getSuperTables(final String catalog, final String schemaPattern, final String tableNamePattern) throws SQLException {
496        return getRS(() -> databaseMetaData.getSuperTables(catalog, schemaPattern, tableNamePattern));
497    }
498
499    @Override
500    public ResultSet getSuperTypes(final String catalog, final String schemaPattern, final String typeNamePattern) throws SQLException {
501        return getRS(() -> databaseMetaData.getSuperTypes(catalog, schemaPattern, typeNamePattern));
502    }
503
504    @Override
505    public String getSystemFunctions() throws SQLException {
506        return get(databaseMetaData::getSystemFunctions);
507    }
508
509    @Override
510    public ResultSet getTablePrivileges(final String catalog, final String schemaPattern, final String tableNamePattern) throws SQLException {
511        return getRS(() -> databaseMetaData.getTablePrivileges(catalog, schemaPattern, tableNamePattern));
512    }
513
514    @Override
515    public ResultSet getTables(final String catalog, final String schemaPattern, final String tableNamePattern, final String[] types) throws SQLException {
516        return getRS(() -> databaseMetaData.getTables(catalog, schemaPattern, tableNamePattern, types));
517    }
518
519    @Override
520    public ResultSet getTableTypes() throws SQLException {
521        return getRS(databaseMetaData::getTableTypes);
522    }
523
524    @Override
525    public String getTimeDateFunctions() throws SQLException {
526        return get(databaseMetaData::getTimeDateFunctions);
527    }
528
529    @Override
530    public ResultSet getTypeInfo() throws SQLException {
531        return getRS(databaseMetaData::getTypeInfo);
532    }
533
534    @Override
535    public ResultSet getUDTs(final String catalog, final String schemaPattern, final String typeNamePattern, final int[] types) throws SQLException {
536        return getRS(() -> databaseMetaData.getUDTs(catalog, schemaPattern, typeNamePattern, types));
537    }
538
539    @Override
540    public String getURL() throws SQLException {
541        return get(databaseMetaData::getURL);
542    }
543
544    @Override
545    public String getUserName() throws SQLException {
546        return get(databaseMetaData::getUserName);
547    }
548
549    @Override
550    public ResultSet getVersionColumns(final String catalog, final String schema, final String table) throws SQLException {
551        return getRS(() -> databaseMetaData.getVersionColumns(catalog, schema, table));
552    }
553
554    /**
555     * Delegates to the connection's {@link DelegatingConnection#handleException(SQLException)}.
556     *
557     * @param e the exception to throw or delegate.
558     * @throws SQLException the exception to throw.
559     */
560    protected void handleException(final SQLException e) throws SQLException {
561        if (connection == null) {
562            throw e;
563        }
564        connection.handleException(e);
565    }
566
567    @Override
568    public boolean insertsAreDetected(final int type) throws SQLException {
569        return getB(() -> databaseMetaData.insertsAreDetected(type));
570    }
571
572    @Override
573    public boolean isCatalogAtStart() throws SQLException {
574        return getB(databaseMetaData::isCatalogAtStart);
575    }
576
577    @Override
578    public boolean isReadOnly() throws SQLException {
579        return getB(databaseMetaData::isReadOnly);
580    }
581
582    @Override
583    public boolean isWrapperFor(final Class<?> iface) throws SQLException {
584        if (iface.isAssignableFrom(getClass())) {
585            return true;
586        }
587        if (iface.isAssignableFrom(databaseMetaData.getClass())) {
588            return true;
589        }
590        return databaseMetaData.isWrapperFor(iface);
591    }
592
593    @Override
594    public boolean locatorsUpdateCopy() throws SQLException {
595        return getB(databaseMetaData::locatorsUpdateCopy);
596    }
597
598    @Override
599    public boolean nullPlusNonNullIsNull() throws SQLException {
600        return getB(databaseMetaData::nullPlusNonNullIsNull);
601    }
602
603    @Override
604    public boolean nullsAreSortedAtEnd() throws SQLException {
605        return getB(databaseMetaData::nullsAreSortedAtEnd);
606    }
607
608    @Override
609    public boolean nullsAreSortedAtStart() throws SQLException {
610        return getB(databaseMetaData::nullsAreSortedAtStart);
611    }
612
613    @Override
614    public boolean nullsAreSortedHigh() throws SQLException {
615        return getB(databaseMetaData::nullsAreSortedHigh);
616    }
617
618    @Override
619    public boolean nullsAreSortedLow() throws SQLException {
620        return getB(databaseMetaData::nullsAreSortedLow);
621    }
622
623    @Override
624    public boolean othersDeletesAreVisible(final int type) throws SQLException {
625        return getB(() -> databaseMetaData.othersDeletesAreVisible(type));
626    }
627
628    @Override
629    public boolean othersInsertsAreVisible(final int type) throws SQLException {
630        return getB(() -> databaseMetaData.othersInsertsAreVisible(type));
631    }
632
633    @Override
634    public boolean othersUpdatesAreVisible(final int type) throws SQLException {
635        return getB(() -> databaseMetaData.othersUpdatesAreVisible(type));
636    }
637
638    @Override
639    public boolean ownDeletesAreVisible(final int type) throws SQLException {
640        return getB(() -> databaseMetaData.ownDeletesAreVisible(type));
641    }
642
643    @Override
644    public boolean ownInsertsAreVisible(final int type) throws SQLException {
645        return getB(() -> databaseMetaData.ownInsertsAreVisible(type));
646    }
647
648    @Override
649    public boolean ownUpdatesAreVisible(final int type) throws SQLException {
650        return getB(() -> databaseMetaData.ownUpdatesAreVisible(type));
651    }
652
653    @Override
654    public boolean storesLowerCaseIdentifiers() throws SQLException {
655        return getB(databaseMetaData::storesLowerCaseIdentifiers);
656    }
657
658    @Override
659    public boolean storesLowerCaseQuotedIdentifiers() throws SQLException {
660        return getB(databaseMetaData::storesLowerCaseQuotedIdentifiers);
661    }
662
663    @Override
664    public boolean storesMixedCaseIdentifiers() throws SQLException {
665        return getB(databaseMetaData::storesMixedCaseIdentifiers);
666    }
667
668    @Override
669    public boolean storesMixedCaseQuotedIdentifiers() throws SQLException {
670        return getB(databaseMetaData::storesMixedCaseQuotedIdentifiers);
671    }
672
673    @Override
674    public boolean storesUpperCaseIdentifiers() throws SQLException {
675        return getB(databaseMetaData::storesUpperCaseIdentifiers);
676
677    }
678
679    @Override
680    public boolean storesUpperCaseQuotedIdentifiers() throws SQLException {
681        return getB(databaseMetaData::storesUpperCaseQuotedIdentifiers);
682    }
683
684    @Override
685    public boolean supportsAlterTableWithAddColumn() throws SQLException {
686        return getB(databaseMetaData::supportsAlterTableWithAddColumn);
687    }
688
689    @Override
690    public boolean supportsAlterTableWithDropColumn() throws SQLException {
691        return getB(databaseMetaData::supportsAlterTableWithDropColumn);
692    }
693
694    @Override
695    public boolean supportsANSI92EntryLevelSQL() throws SQLException {
696        return getB(databaseMetaData::supportsANSI92EntryLevelSQL);
697    }
698
699    @Override
700    public boolean supportsANSI92FullSQL() throws SQLException {
701        return getB(databaseMetaData::supportsANSI92FullSQL);
702    }
703
704    @Override
705    public boolean supportsANSI92IntermediateSQL() throws SQLException {
706        return getB(databaseMetaData::supportsANSI92IntermediateSQL);
707    }
708
709    @Override
710    public boolean supportsBatchUpdates() throws SQLException {
711        return getB(databaseMetaData::supportsBatchUpdates);
712    }
713
714    @Override
715    public boolean supportsCatalogsInDataManipulation() throws SQLException {
716        return getB(databaseMetaData::supportsCatalogsInDataManipulation);
717    }
718
719    @Override
720    public boolean supportsCatalogsInIndexDefinitions() throws SQLException {
721        return getB(databaseMetaData::supportsCatalogsInIndexDefinitions);
722    }
723
724    @Override
725    public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException {
726        return getB(databaseMetaData::supportsCatalogsInPrivilegeDefinitions);
727    }
728
729    @Override
730    public boolean supportsCatalogsInProcedureCalls() throws SQLException {
731        return getB(databaseMetaData::supportsCatalogsInProcedureCalls);
732    }
733
734    @Override
735    public boolean supportsCatalogsInTableDefinitions() throws SQLException {
736        return getB(databaseMetaData::supportsCatalogsInTableDefinitions);
737    }
738
739    @Override
740    public boolean supportsColumnAliasing() throws SQLException {
741        return getB(databaseMetaData::supportsColumnAliasing);
742    }
743
744    @Override
745    public boolean supportsConvert() throws SQLException {
746        return getB(databaseMetaData::supportsConvert);
747    }
748
749    @Override
750    public boolean supportsConvert(final int fromType, final int toType) throws SQLException {
751        return getB(() -> databaseMetaData.supportsConvert(fromType, toType));
752    }
753
754    @Override
755    public boolean supportsCoreSQLGrammar() throws SQLException {
756        return getB(databaseMetaData::supportsCoreSQLGrammar);
757    }
758
759    @Override
760    public boolean supportsCorrelatedSubqueries() throws SQLException {
761        return getB(databaseMetaData::supportsCorrelatedSubqueries);
762    }
763
764    @Override
765    public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException {
766        return getB(databaseMetaData::supportsDataDefinitionAndDataManipulationTransactions);
767    }
768
769    @Override
770    public boolean supportsDataManipulationTransactionsOnly() throws SQLException {
771        return getB(databaseMetaData::supportsDataManipulationTransactionsOnly);
772    }
773
774    @Override
775    public boolean supportsDifferentTableCorrelationNames() throws SQLException {
776        return getB(databaseMetaData::supportsDifferentTableCorrelationNames);
777    }
778
779    @Override
780    public boolean supportsExpressionsInOrderBy() throws SQLException {
781        return getB(databaseMetaData::supportsExpressionsInOrderBy);
782    }
783
784    @Override
785    public boolean supportsExtendedSQLGrammar() throws SQLException {
786        return getB(databaseMetaData::supportsExtendedSQLGrammar);
787    }
788
789    @Override
790    public boolean supportsFullOuterJoins() throws SQLException {
791        return getB(databaseMetaData::supportsFullOuterJoins);
792    }
793
794    @Override
795    public boolean supportsGetGeneratedKeys() throws SQLException {
796        return getB(databaseMetaData::supportsGetGeneratedKeys);
797    }
798
799    @Override
800    public boolean supportsGroupBy() throws SQLException {
801        return getB(databaseMetaData::supportsGroupBy);
802    }
803
804    @Override
805    public boolean supportsGroupByBeyondSelect() throws SQLException {
806        return getB(databaseMetaData::supportsGroupByBeyondSelect);
807    }
808
809    @Override
810    public boolean supportsGroupByUnrelated() throws SQLException {
811        return getB(databaseMetaData::supportsGroupByUnrelated);
812    }
813
814    @Override
815    public boolean supportsIntegrityEnhancementFacility() throws SQLException {
816        return getB(databaseMetaData::supportsIntegrityEnhancementFacility);
817    }
818
819    @Override
820    public boolean supportsLikeEscapeClause() throws SQLException {
821        return getB(databaseMetaData::supportsLikeEscapeClause);
822    }
823
824    @Override
825    public boolean supportsLimitedOuterJoins() throws SQLException {
826        return getB(databaseMetaData::supportsLimitedOuterJoins);
827    }
828
829    @Override
830    public boolean supportsMinimumSQLGrammar() throws SQLException {
831        return getB(databaseMetaData::supportsMinimumSQLGrammar);
832    }
833
834    @Override
835    public boolean supportsMixedCaseIdentifiers() throws SQLException {
836        return getB(databaseMetaData::supportsMixedCaseIdentifiers);
837    }
838
839    @Override
840    public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException {
841        return getB(databaseMetaData::supportsMixedCaseQuotedIdentifiers);
842    }
843
844    @Override
845    public boolean supportsMultipleOpenResults() throws SQLException {
846        return getB(databaseMetaData::supportsMultipleOpenResults);
847    }
848
849    @Override
850    public boolean supportsMultipleResultSets() throws SQLException {
851        return getB(databaseMetaData::supportsMultipleResultSets);
852    }
853
854    @Override
855    public boolean supportsMultipleTransactions() throws SQLException {
856        return getB(databaseMetaData::supportsMultipleTransactions);
857    }
858
859    @Override
860    public boolean supportsNamedParameters() throws SQLException {
861        return getB(databaseMetaData::supportsNamedParameters);
862    }
863
864    @Override
865    public boolean supportsNonNullableColumns() throws SQLException {
866        return getB(databaseMetaData::supportsNonNullableColumns);
867    }
868
869    @Override
870    public boolean supportsOpenCursorsAcrossCommit() throws SQLException {
871        return getB(databaseMetaData::supportsOpenCursorsAcrossCommit);
872    }
873
874    @Override
875    public boolean supportsOpenCursorsAcrossRollback() throws SQLException {
876        return getB(databaseMetaData::supportsOpenCursorsAcrossRollback);
877    }
878
879    @Override
880    public boolean supportsOpenStatementsAcrossCommit() throws SQLException {
881        return getB(databaseMetaData::supportsOpenStatementsAcrossCommit);
882    }
883
884    @Override
885    public boolean supportsOpenStatementsAcrossRollback() throws SQLException {
886        return getB(databaseMetaData::supportsOpenStatementsAcrossRollback);
887    }
888
889    @Override
890    public boolean supportsOrderByUnrelated() throws SQLException {
891        return getB(databaseMetaData::supportsOrderByUnrelated);
892    }
893
894    @Override
895    public boolean supportsOuterJoins() throws SQLException {
896        return getB(databaseMetaData::supportsOuterJoins);
897    }
898
899    @Override
900    public boolean supportsPositionedDelete() throws SQLException {
901        return getB(databaseMetaData::supportsPositionedDelete);
902    }
903
904    @Override
905    public boolean supportsPositionedUpdate() throws SQLException {
906        return getB(databaseMetaData::supportsPositionedUpdate);
907    }
908
909    /**
910     * @since 2.5.0
911     */
912    @Override
913    public boolean supportsRefCursors() throws SQLException {
914        return getB(databaseMetaData::supportsRefCursors);
915    }
916
917    @Override
918    public boolean supportsResultSetConcurrency(final int type, final int concurrency) throws SQLException {
919        return getB(() -> databaseMetaData.supportsResultSetConcurrency(type, concurrency));
920    }
921
922    @Override
923    public boolean supportsResultSetHoldability(final int holdability) throws SQLException {
924        return getB(() -> databaseMetaData.supportsResultSetHoldability(holdability));
925    }
926
927    @Override
928    public boolean supportsResultSetType(final int type) throws SQLException {
929        return getB(() -> databaseMetaData.supportsResultSetType(type));
930    }
931
932    @Override
933    public boolean supportsSavepoints() throws SQLException {
934        return getB(databaseMetaData::supportsSavepoints);
935    }
936
937    @Override
938    public boolean supportsSchemasInDataManipulation() throws SQLException {
939        return getB(databaseMetaData::supportsSchemasInDataManipulation);
940    }
941
942    @Override
943    public boolean supportsSchemasInIndexDefinitions() throws SQLException {
944        return getB(databaseMetaData::supportsSchemasInIndexDefinitions);
945    }
946
947    @Override
948    public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException {
949        return getB(databaseMetaData::supportsSchemasInPrivilegeDefinitions);
950    }
951
952    @Override
953    public boolean supportsSchemasInProcedureCalls() throws SQLException {
954        return getB(databaseMetaData::supportsSchemasInProcedureCalls);
955    }
956
957    @Override
958    public boolean supportsSchemasInTableDefinitions() throws SQLException {
959        return getB(databaseMetaData::supportsSchemasInTableDefinitions);
960    }
961
962    @Override
963    public boolean supportsSelectForUpdate() throws SQLException {
964        return getB(databaseMetaData::supportsSelectForUpdate);
965    }
966
967    @Override
968    public boolean supportsStatementPooling() throws SQLException {
969        return getB(databaseMetaData::supportsStatementPooling);
970    }
971
972    @Override
973    public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException {
974        return getB(databaseMetaData::supportsStoredFunctionsUsingCallSyntax);
975    }
976
977    @Override
978    public boolean supportsStoredProcedures() throws SQLException {
979        return getB(databaseMetaData::supportsStoredProcedures);
980    }
981
982    @Override
983    public boolean supportsSubqueriesInComparisons() throws SQLException {
984        return getB(databaseMetaData::supportsSubqueriesInComparisons);
985    }
986
987    @Override
988    public boolean supportsSubqueriesInExists() throws SQLException {
989        return getB(databaseMetaData::supportsSubqueriesInExists);
990    }
991
992    @Override
993    public boolean supportsSubqueriesInIns() throws SQLException {
994        return getB(databaseMetaData::supportsSubqueriesInIns);
995    }
996
997    @Override
998    public boolean supportsSubqueriesInQuantifieds() throws SQLException {
999        return getB(databaseMetaData::supportsSubqueriesInQuantifieds);
1000    }
1001
1002    @Override
1003    public boolean supportsTableCorrelationNames() throws SQLException {
1004        return getB(databaseMetaData::supportsTableCorrelationNames);
1005    }
1006
1007    @Override
1008    public boolean supportsTransactionIsolationLevel(final int level) throws SQLException {
1009        return getB(() -> databaseMetaData.supportsTransactionIsolationLevel(level));
1010    }
1011
1012    @Override
1013    public boolean supportsTransactions() throws SQLException {
1014        return getB(databaseMetaData::supportsTransactions);
1015    }
1016
1017    @Override
1018    public boolean supportsUnion() throws SQLException {
1019        return getB(databaseMetaData::supportsUnion);
1020    }
1021
1022    @Override
1023    public boolean supportsUnionAll() throws SQLException {
1024        return getB(databaseMetaData::supportsUnionAll);
1025    }
1026
1027    @Override
1028    public <T> T unwrap(final Class<T> iface) throws SQLException {
1029        if (iface.isAssignableFrom(getClass())) {
1030            return iface.cast(this);
1031        }
1032        if (iface.isAssignableFrom(databaseMetaData.getClass())) {
1033            return iface.cast(databaseMetaData);
1034        }
1035        return databaseMetaData.unwrap(iface);
1036    }
1037
1038    @Override
1039    public boolean updatesAreDetected(final int type) throws SQLException {
1040        return getB(() -> databaseMetaData.updatesAreDetected(type));
1041    }
1042
1043    @Override
1044    public boolean usesLocalFilePerTable() throws SQLException {
1045        return getB(databaseMetaData::usesLocalFilePerTable);
1046    }
1047
1048    @Override
1049    public boolean usesLocalFiles() throws SQLException {
1050        return getB(databaseMetaData::usesLocalFiles);
1051    }
1052}