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Spring Framework example source code file (PostgresCallMetaDataProvider.java)

This example Spring Framework source code file (PostgresCallMetaDataProvider.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

callparametermetadata, columnmaprowmapper, genericcallmetadataprovider, genericcallmetadataprovider, jdbc, override, override, postgrescallmetadataprovider, postgrescallmetadataprovider, return_value_name, sql, sqlexception, sqloutparameter, sqlparameter, string, string

The Spring Framework PostgresCallMetaDataProvider.java source code

package org.springframework.jdbc.core.metadata;

import org.springframework.jdbc.core.SqlParameter;
import org.springframework.jdbc.core.SqlOutParameter;
import org.springframework.jdbc.core.ColumnMapRowMapper;

import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import java.sql.Types;

/**
 * Oracle specific implementation for the {@link org.springframework.jdbc.core.metadata.CallMetaDataProvider} interface.
 * This class is intended for internal use by the Simple JDBC classes.
 *
 * @author Thomas Risberg
 * @since 2.5
 */
public class PostgresCallMetaDataProvider extends GenericCallMetaDataProvider {

	private static final String RETURN_VALUE_NAME = "returnValue";

	
	public PostgresCallMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException {
		super(databaseMetaData);
	}


	@Override
	public boolean isReturnResultSetSupported() {
		return false;
	}

	@Override
	public boolean isRefCursorSupported() {
		return true;
	}

	@Override
	public int getRefCursorSqlType() {
		return Types.OTHER;
	}

	@Override
	public String metaDataSchemaNameToUse(String schemaName) {
		// Use public schema if no schema specified
		return schemaName == null ? "public" : super.metaDataSchemaNameToUse(schemaName);
	}

	@Override
	public SqlParameter createDefaultOutParameter(String parameterName, CallParameterMetaData meta) {
		if (meta.getSqlType() == Types.OTHER && "refcursor".equals(meta.getTypeName())) {
			return new SqlOutParameter(parameterName, getRefCursorSqlType(), new ColumnMapRowMapper());
		}
		else {
			return super.createDefaultOutParameter(parameterName, meta);
		}
	}

	@Override
	public boolean byPassReturnParameter(String parameterName) {
		return (RETURN_VALUE_NAME.equals(parameterName) ||
				super.byPassReturnParameter(parameterName));
	}
}

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