Package org.springframework.jdbc.core.metadata

Source Code of org.springframework.jdbc.core.metadata.OracleCallMetaDataProvider

/*
* Copyright 2002-2007 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.springframework.jdbc.core.metadata;

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

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

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

  private static final String REF_CURSOR_NAME = "REF CURSOR";


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


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

  @Override
  public int getRefCursorSqlType() {
    return -10;
  }

  @Override
  public String metaDataCatalogNameToUse(String catalogName) {
    // Oracle uses catalog name for package name or an empty string if no package
    return catalogName == null ? "" : super.metaDataCatalogNameToUse(catalogName);
  }

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

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

}
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