sqlg2
Interface Mapper

public interface Mapper

Preprocessor mapper interface. Maps DB types to Java types.

Method Summary

java.lang.String	getClassName(java.lang.Class<?> cls, java.lang.String[] packs) Converts class to its name regarding import lists.
java.util.List<ColumnInfo>	getFields(java.sql.ResultSetMetaData rsmd, java.lang.String resultSetVar, java.lang.String metaVar, SqlChecker checker) Retrieves column info from ResultSet.
java.lang.Object	getTestObject(java.lang.Class<?> paramType, SqlChecker checker) Creates test object used as a parameter for business method during preprocess.

Method Detail

getTestObject

java.lang.Object getTestObject(java.lang.Class<?> paramType,
                               SqlChecker checker)

Creates test object used as a parameter for business method during preprocess.

Parameters:

paramType - Java type of a parameter

checker - SQL checker

Returns:

test object to be used for this parameter in a method invocation done by preprocessor

getClassName

java.lang.String getClassName(java.lang.Class<?> cls,
                              java.lang.String[] packs)

Converts class to its name regarding import lists. Can be used to customize preprocessor output of class names.

Parameters:

cls - class

packs - imported packages

Returns:

class name to be used in preprocess result

getFields

java.util.List<ColumnInfo> getFields(java.sql.ResultSetMetaData rsmd,
                                     java.lang.String resultSetVar,
                                     java.lang.String metaVar,
                                     SqlChecker checker)
                                     throws java.sql.SQLException

Retrieves column info from ResultSet. Column info contains (for each query column):

• Java class for this column
• Java field name
• Method to retrieve object of this class from result set

See also ColumnInfo.

Parameters:

rsmd - result set meta-data

resultSetVar - name of a variable which is used as result set (variable has type ResultSet). Should be used when generating value for ColumnInfo.fetchMethod.

metaVar - name if a variable which is used as boolean flag indicating extraction of meta-info from query (set to true when calling GBase.metaRowQuery(java.sql.PreparedStatement, Class)). Should be used when generating value for ColumnInfo.fetchMethod.

Throws:

java.sql.SQLException