import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public void setNativeJdbcExtractor(NativeJdbcExtractor extractor) {
  delegate.setNativeJdbcExtractor(extractor);
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public NativeJdbcExtractor getNativeJdbcExtractor() {
  return delegate.getNativeJdbcExtractor();
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Specify the NativeJdbcExtractor to use for unwrapping CallableStatements, if any.
 */
public void setNativeJdbcExtractor(NativeJdbcExtractor nativeJdbcExtractor) {
	this.nativeJdbcExtractor = nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Return the current NativeJdbcExtractor implementation.
 */
public NativeJdbcExtractor getNativeJdbcExtractor() {
	return this.nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
@Override
public void setNativeJdbcExtractor(NativeJdbcExtractor nativeJdbcExtractor) {
	this.nativeJdbcExtractor = nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
protected NativeJdbcExtractor getNativeJdbcExtractor() {
	return this.nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Set {@link NativeJdbcExtractor} to be used to retrieve the native connection.
 */
public void setNativeJdbcExtractor(NativeJdbcExtractor nativeJdbcExtractor) {
	this.nativeJdbcExtractor = nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Create a TableMetaDataProvider based on the database metedata
 * @param dataSource used to retrieve metedata
 * @param context the class that holds configuration and metedata
 * @param nativeJdbcExtractor the NativeJdbcExtractor to be used
 * @return instance of the TableMetaDataProvider implementation to be used
 */
public static TableMetaDataProvider createMetaDataProvider(DataSource dataSource,
			final TableMetaDataContext context, final NativeJdbcExtractor nativeJdbcExtractor) {
	try {
		return (TableMetaDataProvider) JdbcUtils.extractDatabaseMetaData(dataSource,
				new DatabaseMetaDataCallback() {
					@Override
					public Object processMetaData(DatabaseMetaData databaseMetaData) throws SQLException {
						String databaseProductName =
								JdbcUtils.commonDatabaseName(databaseMetaData.getDatabaseProductName());
						boolean accessTableColumnMetaData = context.isAccessTableColumnMetaData();
						TableMetaDataProvider provider;
						if ("Oracle".equals(databaseProductName)) {
							provider = new OracleTableMetaDataProvider(databaseMetaData,
									context.isOverrideIncludeSynonymsDefault());
						}
						else if ("HSQL Database Engine".equals(databaseProductName)) {
							provider = new HsqlTableMetaDataProvider(databaseMetaData);
						}
						else if ("PostgreSQL".equals(databaseProductName)) {
							provider = new PostgresTableMetaDataProvider(databaseMetaData);
						}
						else if ("Apache Derby".equals(databaseProductName)) {
							provider = new DerbyTableMetaDataProvider(databaseMetaData);
						}
						else {
							provider = new GenericTableMetaDataProvider(databaseMetaData);
						}
						if (nativeJdbcExtractor != null) {
							provider.setNativeJdbcExtractor(nativeJdbcExtractor);
						}
						if (logger.isDebugEnabled()) {
							logger.debug("Using " + provider.getClass().getSimpleName());
						}
						provider.initializeWithMetaData(databaseMetaData);
						if (accessTableColumnMetaData) {
							provider.initializeWithTableColumnMetaData(databaseMetaData, context.getCatalogName(),
									context.getSchemaName(), context.getTableName());
						}
						return provider;
					}
				});
	}
	catch (MetaDataAccessException ex) {
		throw new DataAccessResourceFailureException("Error retrieving database metadata", ex);
	}
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Specify the NativeJdbcExtractor to use for unwrapping PreparedStatements, if any.
 */
public void setNativeJdbcExtractor(NativeJdbcExtractor nativeJdbcExtractor) {
	this.nativeJdbcExtractor = nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Set the {@link NativeJdbcExtractor} to use to retrieve the native connection if necessary
 */
public void setNativeJdbcExtractor(NativeJdbcExtractor nativeJdbcExtractor) {
	this.tableMetaDataContext.setNativeJdbcExtractor(nativeJdbcExtractor);
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
@Override
public SimpleJdbcInsertOperations useNativeJdbcExtractorForMetaData(NativeJdbcExtractor nativeJdbcExtractor) {
	setNativeJdbcExtractor(nativeJdbcExtractor);
	return this;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public Map<String, NativeJdbcExtractor> getExtractors() {
    return extractors;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public void setExtractors(Map<String, NativeJdbcExtractor> extractors) {
    this.extractors = extractors;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public NativeJdbcExtractor getDefaultJdbcExtractor() {
    return defaultJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public void setDefaultJdbcExtractor(NativeJdbcExtractor defaultJdbcExtractor) {
    this.defaultJdbcExtractor = defaultJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
@Override
public SimpleJdbcUpdateOperations useNativeJdbcExtractorForMetaData(NativeJdbcExtractor nativeJdbcExtractor) {
	setNativeJdbcExtractor(nativeJdbcExtractor);
	return this;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
@Override
public void setNativeJdbcExtractor(NativeJdbcExtractor extractor) {
	super.setNativeJdbcExtractor(extractor);
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
@Override
public NativeJdbcExtractor getNativeJdbcExtractor() {
	return super.getNativeJdbcExtractor();
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
public void setNativeJdbcExtractor(NativeJdbcExtractor nativeJdbcExtractor) {
	this.nativeJdbcExtractor = nativeJdbcExtractor;
}
 

import org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractor; //导入依赖的package包/类
/**
 * Create a TableMetaDataProvider based on the database metedata
 * @param dataSource used to retrieve metedata
 * @param context the class that holds configuration and metedata
 * @param nativeJdbcExtractor the NativeJdbcExtractor to be used
 * @return instance of the TableMetaDataProvider implementation to be used
 */
public static TableMetaDataProvider createMetaDataProvider(DataSource dataSource,
			final TableMetaDataContext context, final NativeJdbcExtractor nativeJdbcExtractor) {
	try {
		return (TableMetaDataProvider) JdbcUtils.extractDatabaseMetaData(dataSource,
				new DatabaseMetaDataCallback() {
					public Object processMetaData(DatabaseMetaData databaseMetaData) throws SQLException {
						String databaseProductName =
								JdbcUtils.commonDatabaseName(databaseMetaData.getDatabaseProductName());
						boolean accessTableColumnMetaData = context.isAccessTableColumnMetaData();
						TableMetaDataProvider provider;
						if ("Oracle".equals(databaseProductName)) {
							provider = new OracleTableMetaDataProvider(databaseMetaData,
									context.isOverrideIncludeSynonymsDefault());
						}
						else if ("HSQL Database Engine".equals(databaseProductName)) {
							provider = new HsqlTableMetaDataProvider(databaseMetaData);
						}
						else if ("PostgreSQL".equals(databaseProductName)) {
							provider = new PostgresTableMetaDataProvider(databaseMetaData);
						}
						else if ("Apache Derby".equals(databaseProductName)) {
							provider = new DerbyTableMetaDataProvider(databaseMetaData);
						}
						else {
							provider = new GenericTableMetaDataProvider(databaseMetaData);
						}
						if (nativeJdbcExtractor != null) {
							provider.setNativeJdbcExtractor(nativeJdbcExtractor);
						}
						if (logger.isDebugEnabled()) {
							logger.debug("Using " + provider.getClass().getSimpleName());
						}
						provider.initializeWithMetaData(databaseMetaData);
						if (accessTableColumnMetaData) {
							provider.initializeWithTableColumnMetaData(databaseMetaData, context.getCatalogName(),
									context.getSchemaName(), context.getTableName());
						}
						return provider;
					}
				});
	}
	catch (MetaDataAccessException ex) {
		throw new DataAccessResourceFailureException("Error retrieving database metadata", ex);
	}
}