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package org.hibernate.cfg.reveng.dialect;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.cfg.reveng.ReverseEngineeringRuntimeInfo;
/**
* Interface for fetching metadata from databases.
* The dialect is configured with a ConnectionProvider but is not
* required to actually use any connections.
*
* The metadata methods all returns Iterator and allows for more efficient and partial reads
* for those databases that has "flakey" JDBC metadata implementions.
*
* @author Max Rydahl Andersen
*
*/
public interface MetaDataDialect {
/**
* Configure the metadatadialect.
* @param info a {@link ReverseEngineeringRuntimeInfo} to extract Connection and SQLExceptionConverter and other runtime info
*/
public void configure(ReverseEngineeringRuntimeInfo info);
/**
* Return iterator over the tables that mathces catalog, schema and table
*
* @param catalog name or null
* @param schema name or null
* @param table name or null
* @return iterator with map elements that has "TABLE_NAME", "TABLE_SCHEMA", "TABLE_CAT", "TABLE_TYPE" keys.
*/
Iterator> getTables(String catalog, String schema, String table);
/**
* Close the iterator.
* @param iterator an iterator returned from one of methods on this dialect
*/
void close(Iterator iterator);
/**
* Return iterator over the indexes that mathces catalog, schema and table
*
* @param catalog name or null
* @param schema name or null
* @param table name or null
* @return iterator with map elements that has "TABLE_NAME", "TABLE_SCHEMA", "TABLE_CAT", "INDEX_NAME", "COLUMN_NAME", "NON_UNIQUE", "TYPE" keys.
*/
Iterator> getIndexInfo(String catalog, String schema, String table);
/**
* Return iterator over the columns that mathces catalog, schema and table
*
* @param catalog name or null
* @param schema name or null
* @param table name or null
* @param column name or null
* @return iterator with map elements that has "TABLE_NAME", "TABLE_SCHEMA", "TABLE_CAT", "DATA_TYPE", "TYPE_NAME", "COLUMN_NAME", "NULLABLE", "COLUMN_SIZE", "DECIMAL_DIGITS"
*/
Iterator> getColumns(String catalog, String schema, String table, String column);
/**
* Return iterator over the columns that mathces catalog, schema and table
*
* @param catalog name or null
* @param schema name or null
* @param table name or null
* @return iterator with map elements that has "TABLE_NAME", "TABLE_SCHEMA", "TABLE_CAT", "COLUMN_NAME", "KEY_SEQ", "PK_NAME",
*/
Iterator> getPrimaryKeys(String catalog, String schema, String name);
/**
* Return iterator over the exported foreign keys that mathces catalog, schema and table
*
* @param catalog name or null
* @param schema name or null
* @param table name or null
* @return iterator with map elements that has "TABLE_NAME", "TABLE_SCHEMA", "TABLE_CAT", "FKTABLE_CAT", "FKTABLE_SCHEM", "FKTABLE_NAME", "FK_NAME", "KEY_SEQ"
*/
Iterator> getExportedKeys(String catalog, String schema, String table);
/**
* Does this name need quoting
*
* @param name
* @return
*/
boolean needQuote(String name);
/**
* Close any resources this dialect might have used.
*/
void close();
/**
* Use database (possible native) metadata to suggest identifier strategy.
*
* @param catalog
* @param schema
* @param name
* @return iterator with map elements that has "TABLE_NAME", "TABLE_SCHEMA", "TABLE_CAT", "HIBERNATE_STRATEGY" (null if no possible to determine strategy, otherwise return hibernate identifier strategy name/classname)
*/
public Iterator> getSuggestedPrimaryKeyStrategyName(String catalog, String schema, String table);
}
