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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/11/06 13:17:38 UTC
[GitHub] [shardingsphere] 743834110 opened a new pull request, #21980: fix ShardingSphereException:oracle.jdbc.driver.T4CConnection.getSchem…
743834110 opened a new pull request, #21980:
URL: https://github.com/apache/shardingsphere/pull/21980
Fixes #14463.
Changes proposed in this pull request:
- Fix ShardingSphereException:oracle.jdbc.driver.T4CConnection.getSchema() when using ojdbc6;
---
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- [ ] My code follows the [code of conduct](https://shardingsphere.apache.org/community/en/involved/conduct/code/) of this project.
- [ ] I have self-reviewed the commit code.
- [ ] I have (or in comment I request) added corresponding labels for the pull request.
- [ ] I have passed maven check locally : `mvn clean install -B -T2C -DskipTests -Dmaven.javadoc.skip=true -e`.
- [ ] I have made corresponding changes to the documentation.
- [ ] I have added corresponding unit tests for my changes.
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[GitHub] [shardingsphere] strongduanmu commented on a diff in pull request #21980: fix ShardingSphereException:oracle.jdbc.driver.T4CConnection.getSchem…
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on code in PR #21980:
URL: https://github.com/apache/shardingsphere/pull/21980#discussion_r1014844593
##########
infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/OracleSchemaMetaDataLoader.java:
##########
@@ -74,7 +75,7 @@ public final class OracleSchemaMetaDataLoader implements DialectSchemaMetaDataLo
public Collection<SchemaMetaData> load(final DataSource dataSource, final Collection<String> tables, final String defaultSchemaName) throws SQLException {
Map<String, Collection<ColumnMetaData>> columnMetaDataMap = new HashMap<>(tables.size(), 1);
Map<String, Collection<IndexMetaData>> indexMetaDataMap = new HashMap<>(tables.size(), 1);
- try (Connection connection = dataSource.getConnection()) {
+ try (Connection connection = new MetaDataLoaderConnectionAdapter(DatabaseTypeFactory.getInstance("Oracle"), dataSource.getConnection())) {
Review Comment:
Why add MetaDataLoaderConnectionAdapter?
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[GitHub] [shardingsphere] strongduanmu merged pull request #21980: fix ShardingSphereException:oracle.jdbc.driver.T4CConnection.getSchem…
Posted by GitBox <gi...@apache.org>.
strongduanmu merged PR #21980:
URL: https://github.com/apache/shardingsphere/pull/21980
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[GitHub] [shardingsphere] 743834110 commented on a diff in pull request #21980: fix ShardingSphereException:oracle.jdbc.driver.T4CConnection.getSchem…
Posted by GitBox <gi...@apache.org>.
743834110 commented on code in PR #21980:
URL: https://github.com/apache/shardingsphere/pull/21980#discussion_r1014948973
##########
infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/OracleSchemaMetaDataLoader.java:
##########
@@ -74,7 +75,7 @@ public final class OracleSchemaMetaDataLoader implements DialectSchemaMetaDataLo
public Collection<SchemaMetaData> load(final DataSource dataSource, final Collection<String> tables, final String defaultSchemaName) throws SQLException {
Map<String, Collection<ColumnMetaData>> columnMetaDataMap = new HashMap<>(tables.size(), 1);
Map<String, Collection<IndexMetaData>> indexMetaDataMap = new HashMap<>(tables.size(), 1);
- try (Connection connection = dataSource.getConnection()) {
+ try (Connection connection = new MetaDataLoaderConnectionAdapter(DatabaseTypeFactory.getInstance("Oracle"), dataSource.getConnection())) {
Review Comment:
Using ojdbc6 with defined development circumstance, there will be a NoSuchMethodError like "java.lang.AbstractMethodError: oracle.jdbc.driver.T4CConnection.getSchema()Ljava/lang/String;" when invoke following statement in OracleSchemaMetaDataLoader
```
private Map<String, Collection<ColumnMetaData>> loadColumnMetaDataMap(final Connection connection, final Collection<String> tables) throws SQLException {
...
preparedStatement.setString(1, connection.getSchema());
...
}
```
With debug with connection.getSchema(). We could know ojdbc6 doesn't define method T4CConnection.getSchema().
To invoke connection.getSchema() smoothly, adapt a class like MetaDataLoaderConnectionAdapter
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