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• GuttenBase
• 2.1.0
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• ColumnDataMapper.java

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de.akquinet.jbosscc.guttenbase.mapping.ColumnDataMapper Maven / Gradle / Ivy

package de.akquinet.jbosscc.guttenbase.mapping;

import de.akquinet.jbosscc.guttenbase.meta.ColumnMetaData;

import java.sql.SQLException;

/**
 * Map data contained in a column to some other type. I.e., the target column may have a different type and thus an INSERT needs conversion.
 *
 * 

 * © 2012-2034 akquinet tech@spree
 * 
 *
 * @author M. Dahm
 */
@SuppressWarnings("RedundantThrows")
public interface ColumnDataMapper {
  /**
   * Mapper can be used for the given columns?
   */
  boolean isApplicable(ColumnMetaData sourceColumnMetaData, ColumnMetaData targetColumnMetaData);

  /**
   * Map object. Must be able to handle NULL values.
   */
  Object map(final ColumnMetaData sourceColumnMetaData, final ColumnMetaData targetColumnMetaData, Object value) throws SQLException;
}