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The runtime library of DBFlute
/*
* Copyright 2014-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package org.dbflute.jdbc;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.RowIdLifetime;
import java.sql.SQLException;
/**
* The wrapper of database meta data for lazy loading.
* @author jflute
* @since 1.0.3 (2012/02/16 Saturday)
*/
public class LazyDatabaseMetaDataWrapper implements DatabaseMetaData {
// ===================================================================================
// Attribute
// =========
protected final MetaDataConnectionProvider _connectionProvider;
protected Connection _lazyConnection;
protected DatabaseMetaData _lazyMetaData;
protected boolean _restrictedMetaData;
// ===================================================================================
// Constructor
// ===========
public LazyDatabaseMetaDataWrapper(MetaDataConnectionProvider connectionProvider) {
_connectionProvider = connectionProvider;
}
// ===================================================================================
// Actual MetaData
// ===============
protected DatabaseMetaData getActualMetaData() throws SQLException {
if (_restrictedMetaData) {
String msg = "The meta data is restriected.";
throw new IllegalStateException(msg);
}
if (_lazyMetaData != null) {
return _lazyMetaData;
}
_lazyConnection = _connectionProvider.getConnection();
_lazyMetaData = _lazyConnection.getMetaData();
return _lazyMetaData;
}
public void restrictMetaData() {
_restrictedMetaData = true;
}
public void closeActualReally() throws SQLException {
if (_lazyConnection != null) {
_lazyConnection.close();
_lazyConnection = null;
}
_lazyMetaData = null;
}
// ===================================================================================
// Java6 Implementation
// ====================
public T unwrap(Class class1) throws SQLException {
return getActualMetaData().unwrap(class1);
}
public boolean isWrapperFor(Class class1) throws SQLException {
return getActualMetaData().isWrapperFor(class1);
}
public boolean allProceduresAreCallable() throws SQLException {
return getActualMetaData().allProceduresAreCallable();
}
public boolean allTablesAreSelectable() throws SQLException {
return getActualMetaData().allTablesAreSelectable();
}
public String getURL() throws SQLException {
return getActualMetaData().getURL();
}
public String getUserName() throws SQLException {
return getActualMetaData().getUserName();
}
public boolean isReadOnly() throws SQLException {
return getActualMetaData().isReadOnly();
}
public boolean nullsAreSortedHigh() throws SQLException {
return getActualMetaData().nullsAreSortedHigh();
}
public boolean nullsAreSortedLow() throws SQLException {
return getActualMetaData().nullsAreSortedLow();
}
public boolean nullsAreSortedAtStart() throws SQLException {
return getActualMetaData().nullsAreSortedAtStart();
}
public boolean nullsAreSortedAtEnd() throws SQLException {
return getActualMetaData().nullsAreSortedAtEnd();
}
public String getDatabaseProductName() throws SQLException {
return getActualMetaData().getDatabaseProductName();
}
public String getDatabaseProductVersion() throws SQLException {
return getActualMetaData().getDatabaseProductVersion();
}
public String getDriverName() throws SQLException {
return getActualMetaData().getDriverName();
}
public String getDriverVersion() throws SQLException {
return getActualMetaData().getDriverVersion();
}
public int getDriverMajorVersion() {
try {
return getActualMetaData().getDriverMajorVersion();
} catch (SQLException e) {
String msg = "Failed to get actual meta data.";
throw new IllegalStateException(msg, e);
}
}
public int getDriverMinorVersion() {
try {
return getActualMetaData().getDriverMinorVersion();
} catch (SQLException e) {
String msg = "Failed to get actual meta data.";
throw new IllegalStateException(msg, e);
}
}
public boolean usesLocalFiles() throws SQLException {
return getActualMetaData().usesLocalFiles();
}
public boolean usesLocalFilePerTable() throws SQLException {
return getActualMetaData().usesLocalFilePerTable();
}
public boolean supportsMixedCaseIdentifiers() throws SQLException {
return getActualMetaData().supportsMixedCaseIdentifiers();
}
public boolean storesUpperCaseIdentifiers() throws SQLException {
return getActualMetaData().storesUpperCaseIdentifiers();
}
public boolean storesLowerCaseIdentifiers() throws SQLException {
return getActualMetaData().storesLowerCaseIdentifiers();
}
public boolean storesMixedCaseIdentifiers() throws SQLException {
return getActualMetaData().storesMixedCaseIdentifiers();
}
public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException {
return getActualMetaData().supportsMixedCaseQuotedIdentifiers();
}
public boolean storesUpperCaseQuotedIdentifiers() throws SQLException {
return getActualMetaData().storesUpperCaseQuotedIdentifiers();
}
public boolean storesLowerCaseQuotedIdentifiers() throws SQLException {
return getActualMetaData().storesLowerCaseQuotedIdentifiers();
}
public boolean storesMixedCaseQuotedIdentifiers() throws SQLException {
return getActualMetaData().storesMixedCaseQuotedIdentifiers();
}
public String getIdentifierQuoteString() throws SQLException {
return getActualMetaData().getIdentifierQuoteString();
}
public String getSQLKeywords() throws SQLException {
return getActualMetaData().getSQLKeywords();
}
public String getNumericFunctions() throws SQLException {
return getActualMetaData().getNumericFunctions();
}
public String getStringFunctions() throws SQLException {
return getActualMetaData().getStringFunctions();
}
public String getSystemFunctions() throws SQLException {
return getActualMetaData().getSystemFunctions();
}
public String getTimeDateFunctions() throws SQLException {
return getActualMetaData().getTimeDateFunctions();
}
public String getSearchStringEscape() throws SQLException {
return getActualMetaData().getSearchStringEscape();
}
public String getExtraNameCharacters() throws SQLException {
return getActualMetaData().getExtraNameCharacters();
}
public boolean supportsAlterTableWithAddColumn() throws SQLException {
return getActualMetaData().supportsAlterTableWithAddColumn();
}
public boolean supportsAlterTableWithDropColumn() throws SQLException {
return getActualMetaData().supportsAlterTableWithDropColumn();
}
public boolean supportsColumnAliasing() throws SQLException {
return getActualMetaData().supportsColumnAliasing();
}
public boolean nullPlusNonNullIsNull() throws SQLException {
return getActualMetaData().nullPlusNonNullIsNull();
}
public boolean supportsConvert() throws SQLException {
return getActualMetaData().supportsConvert();
}
public boolean supportsConvert(int i, int j) throws SQLException {
return getActualMetaData().supportsConvert(i, j);
}
public boolean supportsTableCorrelationNames() throws SQLException {
return getActualMetaData().supportsTableCorrelationNames();
}
public boolean supportsDifferentTableCorrelationNames() throws SQLException {
return getActualMetaData().supportsDifferentTableCorrelationNames();
}
public boolean supportsExpressionsInOrderBy() throws SQLException {
return getActualMetaData().supportsExpressionsInOrderBy();
}
public boolean supportsOrderByUnrelated() throws SQLException {
return getActualMetaData().supportsOrderByUnrelated();
}
public boolean supportsGroupBy() throws SQLException {
return getActualMetaData().supportsGroupBy();
}
public boolean supportsGroupByUnrelated() throws SQLException {
return getActualMetaData().supportsGroupByUnrelated();
}
public boolean supportsGroupByBeyondSelect() throws SQLException {
return getActualMetaData().supportsGroupByBeyondSelect();
}
public boolean supportsLikeEscapeClause() throws SQLException {
return getActualMetaData().supportsLikeEscapeClause();
}
public boolean supportsMultipleResultSets() throws SQLException {
return getActualMetaData().supportsMultipleResultSets();
}
public boolean supportsMultipleTransactions() throws SQLException {
return getActualMetaData().supportsMultipleTransactions();
}
public boolean supportsNonNullableColumns() throws SQLException {
return getActualMetaData().supportsNonNullableColumns();
}
public boolean supportsMinimumSQLGrammar() throws SQLException {
return getActualMetaData().supportsMinimumSQLGrammar();
}
public boolean supportsCoreSQLGrammar() throws SQLException {
return getActualMetaData().supportsCoreSQLGrammar();
}
public boolean supportsExtendedSQLGrammar() throws SQLException {
return getActualMetaData().supportsExtendedSQLGrammar();
}
public boolean supportsANSI92EntryLevelSQL() throws SQLException {
return getActualMetaData().supportsANSI92EntryLevelSQL();
}
public boolean supportsANSI92IntermediateSQL() throws SQLException {
return getActualMetaData().supportsANSI92IntermediateSQL();
}
public boolean supportsANSI92FullSQL() throws SQLException {
return getActualMetaData().supportsANSI92FullSQL();
}
public boolean supportsIntegrityEnhancementFacility() throws SQLException {
return getActualMetaData().supportsIntegrityEnhancementFacility();
}
public boolean supportsOuterJoins() throws SQLException {
return getActualMetaData().supportsOuterJoins();
}
public boolean supportsFullOuterJoins() throws SQLException {
return getActualMetaData().supportsFullOuterJoins();
}
public boolean supportsLimitedOuterJoins() throws SQLException {
return getActualMetaData().supportsLimitedOuterJoins();
}
public String getSchemaTerm() throws SQLException {
return getActualMetaData().getSchemaTerm();
}
public String getProcedureTerm() throws SQLException {
return getActualMetaData().getProcedureTerm();
}
public String getCatalogTerm() throws SQLException {
return getActualMetaData().getCatalogTerm();
}
public boolean isCatalogAtStart() throws SQLException {
return getActualMetaData().isCatalogAtStart();
}
public String getCatalogSeparator() throws SQLException {
return getActualMetaData().getCatalogSeparator();
}
public boolean supportsSchemasInDataManipulation() throws SQLException {
return getActualMetaData().supportsSchemasInDataManipulation();
}
public boolean supportsSchemasInProcedureCalls() throws SQLException {
return getActualMetaData().supportsSchemasInProcedureCalls();
}
public boolean supportsSchemasInTableDefinitions() throws SQLException {
return getActualMetaData().supportsSchemasInTableDefinitions();
}
public boolean supportsSchemasInIndexDefinitions() throws SQLException {
return getActualMetaData().supportsSchemasInIndexDefinitions();
}
public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException {
return getActualMetaData().supportsSchemasInPrivilegeDefinitions();
}
public boolean supportsCatalogsInDataManipulation() throws SQLException {
return getActualMetaData().supportsCatalogsInDataManipulation();
}
public boolean supportsCatalogsInProcedureCalls() throws SQLException {
return getActualMetaData().supportsCatalogsInProcedureCalls();
}
public boolean supportsCatalogsInTableDefinitions() throws SQLException {
return getActualMetaData().supportsCatalogsInTableDefinitions();
}
public boolean supportsCatalogsInIndexDefinitions() throws SQLException {
return getActualMetaData().supportsCatalogsInIndexDefinitions();
}
public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException {
return getActualMetaData().supportsCatalogsInPrivilegeDefinitions();
}
public boolean supportsPositionedDelete() throws SQLException {
return getActualMetaData().supportsPositionedDelete();
}
public boolean supportsPositionedUpdate() throws SQLException {
return getActualMetaData().supportsPositionedUpdate();
}
public boolean supportsSelectForUpdate() throws SQLException {
return getActualMetaData().supportsSelectForUpdate();
}
public boolean supportsStoredProcedures() throws SQLException {
return getActualMetaData().supportsStoredProcedures();
}
public boolean supportsSubqueriesInComparisons() throws SQLException {
return getActualMetaData().supportsSubqueriesInComparisons();
}
public boolean supportsSubqueriesInExists() throws SQLException {
return getActualMetaData().supportsSubqueriesInExists();
}
public boolean supportsSubqueriesInIns() throws SQLException {
return getActualMetaData().supportsSubqueriesInIns();
}
public boolean supportsSubqueriesInQuantifieds() throws SQLException {
return getActualMetaData().supportsSubqueriesInQuantifieds();
}
public boolean supportsCorrelatedSubqueries() throws SQLException {
return getActualMetaData().supportsCorrelatedSubqueries();
}
public boolean supportsUnion() throws SQLException {
return getActualMetaData().supportsUnion();
}
public boolean supportsUnionAll() throws SQLException {
return getActualMetaData().supportsUnionAll();
}
public boolean supportsOpenCursorsAcrossCommit() throws SQLException {
return getActualMetaData().supportsOpenCursorsAcrossCommit();
}
public boolean supportsOpenCursorsAcrossRollback() throws SQLException {
return getActualMetaData().supportsOpenCursorsAcrossRollback();
}
public boolean supportsOpenStatementsAcrossCommit() throws SQLException {
return getActualMetaData().supportsOpenStatementsAcrossCommit();
}
public boolean supportsOpenStatementsAcrossRollback() throws SQLException {
return getActualMetaData().supportsOpenStatementsAcrossRollback();
}
public int getMaxBinaryLiteralLength() throws SQLException {
return getActualMetaData().getMaxBinaryLiteralLength();
}
public int getMaxCharLiteralLength() throws SQLException {
return getActualMetaData().getMaxCharLiteralLength();
}
public int getMaxColumnNameLength() throws SQLException {
return getActualMetaData().getMaxColumnNameLength();
}
public int getMaxColumnsInGroupBy() throws SQLException {
return getActualMetaData().getMaxColumnsInGroupBy();
}
public int getMaxColumnsInIndex() throws SQLException {
return getActualMetaData().getMaxColumnsInIndex();
}
public int getMaxColumnsInOrderBy() throws SQLException {
return getActualMetaData().getMaxColumnsInOrderBy();
}
public int getMaxColumnsInSelect() throws SQLException {
return getActualMetaData().getMaxColumnsInSelect();
}
public int getMaxColumnsInTable() throws SQLException {
return getActualMetaData().getMaxColumnsInTable();
}
public int getMaxConnections() throws SQLException {
return getActualMetaData().getMaxConnections();
}
public int getMaxCursorNameLength() throws SQLException {
return getActualMetaData().getMaxCursorNameLength();
}
public int getMaxIndexLength() throws SQLException {
return getActualMetaData().getMaxIndexLength();
}
public int getMaxSchemaNameLength() throws SQLException {
return getActualMetaData().getMaxSchemaNameLength();
}
public int getMaxProcedureNameLength() throws SQLException {
return getActualMetaData().getMaxProcedureNameLength();
}
public int getMaxCatalogNameLength() throws SQLException {
return getActualMetaData().getMaxCatalogNameLength();
}
public int getMaxRowSize() throws SQLException {
return getActualMetaData().getMaxRowSize();
}
public boolean doesMaxRowSizeIncludeBlobs() throws SQLException {
return getActualMetaData().doesMaxRowSizeIncludeBlobs();
}
public int getMaxStatementLength() throws SQLException {
return getActualMetaData().getMaxStatementLength();
}
public int getMaxStatements() throws SQLException {
return getActualMetaData().getMaxStatements();
}
public int getMaxTableNameLength() throws SQLException {
return getActualMetaData().getMaxTableNameLength();
}
public int getMaxTablesInSelect() throws SQLException {
return getActualMetaData().getMaxTablesInSelect();
}
public int getMaxUserNameLength() throws SQLException {
return getActualMetaData().getMaxUserNameLength();
}
public int getDefaultTransactionIsolation() throws SQLException {
return getActualMetaData().getDefaultTransactionIsolation();
}
public boolean supportsTransactions() throws SQLException {
return getActualMetaData().supportsTransactions();
}
public boolean supportsTransactionIsolationLevel(int i) throws SQLException {
return getActualMetaData().supportsTransactionIsolationLevel(i);
}
public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException {
return getActualMetaData().supportsDataDefinitionAndDataManipulationTransactions();
}
public boolean supportsDataManipulationTransactionsOnly() throws SQLException {
return getActualMetaData().supportsDataManipulationTransactionsOnly();
}
public boolean dataDefinitionCausesTransactionCommit() throws SQLException {
return getActualMetaData().dataDefinitionCausesTransactionCommit();
}
public boolean dataDefinitionIgnoredInTransactions() throws SQLException {
return getActualMetaData().dataDefinitionIgnoredInTransactions();
}
public ResultSet getProcedures(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getProcedures(s, s1, s2);
}
public ResultSet getProcedureColumns(String s, String s1, String s2, String s3) throws SQLException {
return getActualMetaData().getProcedureColumns(s, s1, s2, s3);
}
public ResultSet getTables(String s, String s1, String s2, String[] as) throws SQLException {
return getActualMetaData().getTables(s, s1, s2, as);
}
public ResultSet getSchemas() throws SQLException {
return getActualMetaData().getSchemas();
}
public ResultSet getCatalogs() throws SQLException {
return getActualMetaData().getCatalogs();
}
public ResultSet getTableTypes() throws SQLException {
return getActualMetaData().getTableTypes();
}
public ResultSet getColumns(String s, String s1, String s2, String s3) throws SQLException {
return getActualMetaData().getColumns(s, s1, s2, s3);
}
public ResultSet getColumnPrivileges(String s, String s1, String s2, String s3) throws SQLException {
return getActualMetaData().getColumnPrivileges(s, s1, s2, s3);
}
public ResultSet getTablePrivileges(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getTablePrivileges(s, s1, s2);
}
public ResultSet getBestRowIdentifier(String s, String s1, String s2, int i, boolean flag) throws SQLException {
return getActualMetaData().getBestRowIdentifier(s, s1, s2, i, flag);
}
public ResultSet getVersionColumns(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getVersionColumns(s, s1, s2);
}
public ResultSet getPrimaryKeys(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getPrimaryKeys(s, s1, s2);
}
public ResultSet getImportedKeys(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getImportedKeys(s, s1, s2);
}
public ResultSet getExportedKeys(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getExportedKeys(s, s1, s2);
}
public ResultSet getCrossReference(String s, String s1, String s2, String s3, String s4, String s5) throws SQLException {
return getActualMetaData().getCrossReference(s, s1, s2, s3, s4, s5);
}
public ResultSet getTypeInfo() throws SQLException {
return getActualMetaData().getTypeInfo();
}
public ResultSet getIndexInfo(String s, String s1, String s2, boolean flag, boolean flag1) throws SQLException {
return getActualMetaData().getIndexInfo(s, s1, s2, flag, flag1);
}
public boolean supportsResultSetType(int i) throws SQLException {
return getActualMetaData().supportsResultSetType(i);
}
public boolean supportsResultSetConcurrency(int i, int j) throws SQLException {
return getActualMetaData().supportsResultSetConcurrency(i, j);
}
public boolean ownUpdatesAreVisible(int i) throws SQLException {
return getActualMetaData().ownUpdatesAreVisible(i);
}
public boolean ownDeletesAreVisible(int i) throws SQLException {
return getActualMetaData().ownDeletesAreVisible(i);
}
public boolean ownInsertsAreVisible(int i) throws SQLException {
return getActualMetaData().ownInsertsAreVisible(i);
}
public boolean othersUpdatesAreVisible(int i) throws SQLException {
return getActualMetaData().othersUpdatesAreVisible(i);
}
public boolean othersDeletesAreVisible(int i) throws SQLException {
return getActualMetaData().othersDeletesAreVisible(i);
}
public boolean othersInsertsAreVisible(int i) throws SQLException {
return getActualMetaData().othersInsertsAreVisible(i);
}
public boolean updatesAreDetected(int i) throws SQLException {
return getActualMetaData().updatesAreDetected(i);
}
public boolean deletesAreDetected(int i) throws SQLException {
return getActualMetaData().deletesAreDetected(i);
}
public boolean insertsAreDetected(int i) throws SQLException {
return getActualMetaData().insertsAreDetected(i);
}
public boolean supportsBatchUpdates() throws SQLException {
return getActualMetaData().supportsBatchUpdates();
}
public ResultSet getUDTs(String s, String s1, String s2, int[] ai) throws SQLException {
return getActualMetaData().getUDTs(s, s1, s2, ai);
}
public Connection getConnection() throws SQLException {
return getActualMetaData().getConnection();
}
public boolean supportsSavepoints() throws SQLException {
return getActualMetaData().supportsSavepoints();
}
public boolean supportsNamedParameters() throws SQLException {
return getActualMetaData().supportsNamedParameters();
}
public boolean supportsMultipleOpenResults() throws SQLException {
return getActualMetaData().supportsMultipleOpenResults();
}
public boolean supportsGetGeneratedKeys() throws SQLException {
return getActualMetaData().supportsGetGeneratedKeys();
}
public ResultSet getSuperTypes(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getSuperTypes(s, s1, s2);
}
public ResultSet getSuperTables(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getSuperTables(s, s1, s2);
}
public ResultSet getAttributes(String s, String s1, String s2, String s3) throws SQLException {
return getActualMetaData().getAttributes(s, s1, s2, s3);
}
public boolean supportsResultSetHoldability(int i) throws SQLException {
return getActualMetaData().supportsResultSetHoldability(i);
}
public int getResultSetHoldability() throws SQLException {
return getActualMetaData().getResultSetHoldability();
}
public int getDatabaseMajorVersion() throws SQLException {
return getActualMetaData().getDatabaseMajorVersion();
}
public int getDatabaseMinorVersion() throws SQLException {
return getActualMetaData().getDatabaseMinorVersion();
}
public int getJDBCMajorVersion() throws SQLException {
return getActualMetaData().getJDBCMajorVersion();
}
public int getJDBCMinorVersion() throws SQLException {
return getActualMetaData().getJDBCMinorVersion();
}
public int getSQLStateType() throws SQLException {
return getActualMetaData().getSQLStateType();
}
public boolean locatorsUpdateCopy() throws SQLException {
return getActualMetaData().locatorsUpdateCopy();
}
public boolean supportsStatementPooling() throws SQLException {
return getActualMetaData().supportsStatementPooling();
}
public RowIdLifetime getRowIdLifetime() throws SQLException {
return getActualMetaData().getRowIdLifetime();
}
public ResultSet getSchemas(String s, String s1) throws SQLException {
return getActualMetaData().getSchemas(s, s1);
}
public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException {
return getActualMetaData().supportsStoredFunctionsUsingCallSyntax();
}
public boolean autoCommitFailureClosesAllResultSets() throws SQLException {
return getActualMetaData().autoCommitFailureClosesAllResultSets();
}
public ResultSet getClientInfoProperties() throws SQLException {
return getActualMetaData().getClientInfoProperties();
}
public ResultSet getFunctions(String s, String s1, String s2) throws SQLException {
return getActualMetaData().getFunctions(s, s1, s2);
}
public ResultSet getFunctionColumns(String s, String s1, String s2, String s3) throws SQLException {
return getActualMetaData().getFunctionColumns(s, s1, s2, s3);
}
// ===================================================================================
// Java8 Implementation
// ====================
public ResultSet getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)
throws SQLException {
return getActualMetaData().getPseudoColumns(catalog, schemaPattern, tableNamePattern, columnNamePattern);
}
public boolean generatedKeyAlwaysReturned() throws SQLException {
return getActualMetaData().generatedKeyAlwaysReturned();
}
}
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