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• GuttenBase
• 1.0
• source code
• ColumnDataMapperProvider.java

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

package de.akquinet.jbosscc.guttenbase.mapping;

import java.sql.SQLException;

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

/**
 * Used to find mappings for column data. E.g., when converting a number to a String or casting a LONG to a BIGINT.
 * 
 * 

 * © 2012 akquinet tech@spree
 * 
 * 
 * @author M. Dahm
 */
public interface ColumnDataMapperProvider {
	/**
	 * Find mapping the given configuration.
	 * 
	 * @param sourceColumnMetaData
	 *          source column
	 * @param targetColumnMetaData
	 *          target column
	 * @param sourceColumnType
	 *          as determined by {@link ColumnTypeResolver}
	 * @param targetColumnType
	 *          as determined by {@link ColumnTypeResolver}
	 */
	ColumnDataMapper findMapping(final ColumnMetaData sourceColumnMetaData, final ColumnMetaData targetColumnMetaData,
			final ColumnType sourceColumnType, final ColumnType targetColumnType) throws SQLException;

	/**
	 * Specify additional mapping
	 */
	void addMapping(final ColumnType sourceColumnType, final ColumnType targetColumnType, final ColumnDataMapper columnDataMapper)
			throws SQLException;

	/**
	 * Remove given mapping
	 */
	void removeMapping(final ColumnType sourceColumnType, final ColumnType targetColumnType) throws SQLException;
}