public class CompositeSQLDataHandler extends java.lang.Object implements SQLDataHandler
Constructor and Description |
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CompositeSQLDataHandler()
Create a new CompositeSQLDataHandler.
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CompositeSQLDataHandler(SQLDataHandler defaultHandler)
Create a new CompositeSQLDataHandler.
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Modifier and Type | Method and Description |
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void |
addHandler(java.lang.String columnName,
SQLDataHandler handler)
Add a custom data handler for a given column name.
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java.lang.Class |
getDataType(java.lang.String columnName,
int sqlType)
Return the Java data type for the given data field name and
its sql data type.
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void |
process(Table t,
int trow,
java.sql.ResultSet rset,
int rcol)
Process a data value from a ResultSet, translating it into a
Java data value and storing it in a Table.
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boolean |
removeHandler(java.lang.String columnName)
Remove a custom data handler for a given column name.
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public CompositeSQLDataHandler()
DefaultSQLDataHandler
as the default handler.public CompositeSQLDataHandler(SQLDataHandler defaultHandler)
defaultHandler
- the default data handler to usepublic void addHandler(java.lang.String columnName, SQLDataHandler handler)
columnName
- the data field / column namehandler
- the data handler to use for the fieldpublic boolean removeHandler(java.lang.String columnName)
columnName
- the data field / column namepublic void process(Table t, int trow, java.sql.ResultSet rset, int rcol) throws java.sql.SQLException
SQLDataHandler
process
in interface SQLDataHandler
t
- the Table in which to store the result valuetrow
- the Table row to add torset
- the ResultSet to read the SQL value from, assumed
to be set to the desired rowrcol
- the column index of the data value in the row set.
This is also used to look up the column name, which is used
to access the correct data field of the Table.java.sql.SQLException
- if an error occurs accessing the ResultSetSQLDataHandler.process(prefuse.data.Table, int, java.sql.ResultSet, int)
public java.lang.Class getDataType(java.lang.String columnName, int sqlType)
SQLDataHandler
getDataType
in interface SQLDataHandler
columnName
- the name of data field / columnsqlType
- the field's sql data type, one of the constants
in the Types
class.SQLDataHandler.getDataType(java.lang.String, int)
Copyright ? 2013 Regents of the University of California