HHH-9910 - Schema migration (update) problems with catalog/schema restrictions
yes, in oracle
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6af89449f2
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@ -53,6 +53,7 @@ public class JdbcEnvironmentImpl implements JdbcEnvironment {
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private final LobCreatorBuilderImpl lobCreatorBuilder;
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private final LinkedHashSet<TypeInfo> typeInfoSet = new LinkedHashSet<TypeInfo>();
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private final NameQualifierSupport nameQualifierSupport;
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/**
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* Constructor form used when the JDBC {@link java.sql.DatabaseMetaData} is not available.
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@ -70,6 +71,7 @@ public class JdbcEnvironmentImpl implements JdbcEnvironment {
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// assume both catalogs and schemas are supported
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nameQualifierSupport = NameQualifierSupport.BOTH;
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}
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this.nameQualifierSupport = nameQualifierSupport;
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this.sqlExceptionHelper = buildSqlExceptionHelper( dialect );
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this.extractedMetaDataSupport = new ExtractedDatabaseMetaDataImpl.Builder( this ).build();
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@ -138,6 +140,7 @@ public class JdbcEnvironmentImpl implements JdbcEnvironment {
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if ( nameQualifierSupport == null ) {
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nameQualifierSupport = determineNameQualifierSupport( databaseMetaData );
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}
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this.nameQualifierSupport = nameQualifierSupport;
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final IdentifierHelperBuilder identifierHelperBuilder = IdentifierHelperBuilder.from( this );
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identifierHelperBuilder.setNameQualifierSupport( nameQualifierSupport );
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@ -211,6 +214,7 @@ public class JdbcEnvironmentImpl implements JdbcEnvironment {
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if ( nameQualifierSupport == null ) {
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nameQualifierSupport = determineNameQualifierSupport( databaseMetaData );
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}
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this.nameQualifierSupport = nameQualifierSupport;
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final IdentifierHelperBuilder identifierHelperBuilder = IdentifierHelperBuilder.from( this );
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identifierHelperBuilder.setGloballyQuoteIdentifiers( globalQuoting( cfgService ) );
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@ -323,6 +327,11 @@ public class JdbcEnvironmentImpl implements JdbcEnvironment {
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return identifierHelper;
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}
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@Override
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public NameQualifierSupport getNameQualifierSupport() {
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return nameQualifierSupport;
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}
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@Override
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public SqlExceptionHelper getSqlExceptionHelper() {
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return sqlExceptionHelper;
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@ -68,6 +68,13 @@ public interface JdbcEnvironment extends Service {
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*/
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IdentifierHelper getIdentifierHelper();
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/**
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* Obtain the level of support for qualified names.
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*
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* @return
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*/
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NameQualifierSupport getNameQualifierSupport();
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/**
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* Obtain the helper for dealing with JDBC {@link java.sql.SQLException} faults.
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*
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@ -12,6 +12,7 @@ import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.StringTokenizer;
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@ -70,6 +71,42 @@ public class InformationExtractorJdbcDatabaseMetaDataImpl implements Information
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return extractionContext.getJdbcEnvironment().getSqlExceptionHelper().convert( sqlException, message );
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}
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protected String toMetaDataObjectName(Identifier identifier) {
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return extractionContext.getJdbcEnvironment().getIdentifierHelper().toMetaDataObjectName( identifier );
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}
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@Override
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public boolean catalogExists(Identifier catalog) {
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try {
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final ResultSet resultSet = extractionContext.getJdbcDatabaseMetaData().getCatalogs();
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try {
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while ( resultSet.next() ) {
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final String existingCatalogName = resultSet.getString( "TABLE_CAT" );
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// todo : hmm.. case sensitive or insensitive match...
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// for now, match any case...
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if ( catalog.getText().equalsIgnoreCase( existingCatalogName ) ) {
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return true;
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}
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}
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return false;
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}
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finally {
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try {
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resultSet.close();
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}
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catch (SQLException ignore) {
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}
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}
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}
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catch (SQLException sqlException) {
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throw convertSQLException( sqlException, "Unable to query DatabaseMetaData for existing catalogs" );
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}
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}
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@Override
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public boolean schemaExists(Identifier catalog, Identifier schema) {
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try {
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@ -150,17 +187,140 @@ public class InformationExtractorJdbcDatabaseMetaDataImpl implements Information
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@Override
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public TableInformation getTable(Identifier catalog, Identifier schema, Identifier tableName) {
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try {
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final String catalogFilter = determineCatalogFilter( catalog );
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final String schemaFilter = determineSchemaFilter( schema );
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if ( catalog != null || schema != null ) {
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// The table defined an explicit namespace. In such cases we only ever want to look
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// in the identified namespace
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ResultSet resultSet = extractionContext.getJdbcDatabaseMetaData().getTables(
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catalogFilter,
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schemaFilter,
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extractionContext.getJdbcEnvironment().getIdentifierHelper().toMetaDataObjectName( tableName ),
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return locateTableInNamespace( catalog, schema, tableName );
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}
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else {
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// The table did not define an explicit namespace:
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// 1) look in current namespace
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// 2) look in default namespace
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// 3) look in all namespaces - multiple hits is considered an error
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TableInformation tableInfo = null;
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// 1) look in current namespace
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if ( extractionContext.getJdbcEnvironment().getCurrentCatalog() != null
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|| extractionContext.getJdbcEnvironment().getCurrentSchema() != null ) {
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tableInfo = locateTableInNamespace(
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extractionContext.getJdbcEnvironment().getCurrentCatalog(),
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extractionContext.getJdbcEnvironment().getCurrentSchema(),
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tableName
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);
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if ( tableInfo != null ) {
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return tableInfo;
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}
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}
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// 2) look in default namespace
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if ( extractionContext.getDefaultCatalog() != null || extractionContext.getDefaultSchema() != null ) {
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tableInfo = locateTableInNamespace(
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extractionContext.getJdbcEnvironment().getCurrentCatalog(),
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extractionContext.getJdbcEnvironment().getCurrentSchema(),
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tableName
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);
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if ( tableInfo != null ) {
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return tableInfo;
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}
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}
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// 3) look in all namespaces
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try {
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final String tableNameFilter = toMetaDataObjectName( tableName );
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final ResultSet resultSet = extractionContext.getJdbcDatabaseMetaData().getTables(
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null,
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null,
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tableNameFilter,
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tableTypes
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);
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try {
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return processGetTableResults(
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null,
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null,
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tableName,
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resultSet
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);
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}
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finally {
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try {
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resultSet.close();
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}
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catch (SQLException ignore) {
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}
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}
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}
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catch (SQLException sqlException) {
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throw convertSQLException( sqlException, "Error accessing table metadata" );
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}
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}
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}
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private TableInformation locateTableInNamespace(
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Identifier catalog,
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Identifier schema,
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Identifier tableName) {
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final String catalogFilter;
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final String schemaFilter;
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if ( extractionContext.getJdbcEnvironment().getNameQualifierSupport().supportsCatalogs() ) {
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if ( catalog == null ) {
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catalogFilter = "";
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}
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else {
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catalogFilter = toMetaDataObjectName( catalog );
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}
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}
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else {
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catalogFilter = null;
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}
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if ( extractionContext.getJdbcEnvironment().getNameQualifierSupport().supportsSchemas() ) {
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if ( schema == null ) {
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schemaFilter = "";
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}
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else {
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schemaFilter = toMetaDataObjectName( schema );
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}
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}
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else {
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schemaFilter = null;
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}
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final String tableNameFilter = toMetaDataObjectName( tableName );
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try {
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ResultSet resultSet = extractionContext.getJdbcDatabaseMetaData().getTables(
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catalogFilter,
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schemaFilter,
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tableNameFilter,
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tableTypes
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);
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return processGetTableResults(
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catalog,
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schema,
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tableName,
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resultSet
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);
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}
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catch (SQLException sqlException) {
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throw convertSQLException( sqlException, "Error accessing table metadata" );
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}
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}
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private TableInformation processGetTableResults(
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Identifier catalog,
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Identifier schema,
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Identifier tableName,
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ResultSet resultSet) throws SQLException {
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try {
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if ( !resultSet.next() ) {
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log.tableNotFound( tableName.render() );
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@ -176,6 +336,15 @@ public class InformationExtractorJdbcDatabaseMetaDataImpl implements Information
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if ( resultSet.next() ) {
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log.multipleTablesFound( tableName.render() );
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throw new SchemaExtractionException(
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String.format(
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Locale.ENGLISH,
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"More than one table found in namespace (%s, %s) : %s",
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catalog.render(),
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schema.render(),
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tableName.render()
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)
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);
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}
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return tableInformation;
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@ -188,10 +357,6 @@ public class InformationExtractorJdbcDatabaseMetaDataImpl implements Information
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}
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}
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}
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catch (SQLException sqlException) {
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throw convertSQLException( sqlException, "Error accessing table metadata" );
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}
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}
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protected boolean isPhysicalTableType(String tableType) {
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return "TABLE".equalsIgnoreCase( tableType );
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@ -23,6 +23,23 @@ import org.hibernate.tool.schema.extract.internal.TableInformationImpl;
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*/
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public interface InformationExtractor {
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/**
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* Does the given catalog exist yet?
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*
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* @param catalog The name of the catalog to look for.
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*
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* @return {@code true} if the catalog does exist; {@code false} otherwise
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*/
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boolean catalogExists(Identifier catalog);
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/**
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* The the given schema exist yet?
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*
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* @param catalog The name of the catalog to look in.
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* @param schema The name of the schema to look for.
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*
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* @return {@code true} if the schema does exist; {@code false} otherwise
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*/
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boolean schemaExists(Identifier catalog, Identifier schema);
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/**
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