/** Does this type represent a signed numeric type? */
public boolean isTypeSigned(TInstance type) {
TClass tclass = TInstance.tClass(type);
if (tclass == null) return false;
switch (tclass.jdbcType()) {
case Types.BIGINT:
case Types.DECIMAL:
case Types.DOUBLE:
case Types.FLOAT:
case Types.INTEGER:
case Types.NUMERIC:
case Types.REAL:
case Types.SMALLINT:
case Types.TINYINT:
return true;
default:
return false;
}
}
public Class<?> jdbcClass(TInstance type) {
TClass tclass = TInstance.tClass(type);
if (tclass == null) return Object.class;
int jdbcType = tclass.jdbcType();
switch (jdbcType) {
case Types.DECIMAL:
case Types.NUMERIC:
return BigDecimal.class;
case Types.BOOLEAN:
return Boolean.class;
case Types.TINYINT:
return Byte.class;
case Types.BINARY:
case Types.BIT:
case Types.LONGVARBINARY:
case Types.VARBINARY:
case Types.BLOB:
return byte[].class;
case Types.DATE:
return java.sql.Date.class;
case Types.DOUBLE:
return Double.class;
case Types.FLOAT:
case Types.REAL:
return Float.class;
case Types.INTEGER:
return Integer.class;
case Types.BIGINT:
return Long.class;
case Types.SMALLINT:
return Short.class;
case Types.CHAR:
case Types.LONGNVARCHAR:
case Types.LONGVARCHAR:
case Types.NCHAR:
case Types.NVARCHAR:
case Types.VARCHAR:
case Types.CLOB:
return String.class;
case Types.TIME:
return java.sql.Time.class;
case Types.TIMESTAMP:
return java.sql.Timestamp.class;
/*
case Types.ARRAY:
return java.sql.Array.class;
case Types.BLOB:
return java.sql.Blob.class;
case Types.CLOB:
return java.sql.Clob.class;
case Types.NCLOB:
return java.sql.NClob.class;
case Types.REF:
return java.sql.Ref.class;
case Types.ROWID:
return java.sql.RowId.class;
case Types.SQLXML:
return java.sql.SQLXML.class;
*/
case Types.NULL:
case Types.DATALINK:
case Types.DISTINCT:
case Types.JAVA_OBJECT:
case Types.OTHER:
case Types.STRUCT:
default:
break;
}
if (tclass == AkResultSet.INSTANCE) return java.sql.ResultSet.class;
return Object.class;
}
public int jdbcType(TInstance type) {
TClass tclass = TInstance.tClass(type);
if (tclass == null) return Types.OTHER;
else return tclass.jdbcType();
}
public boolean isTypeUnsigned(TInstance type) {
TClass tclass = TInstance.tClass(type);
if (tclass == null) return false;
else return tclass.isUnsigned();
}
public static TClass tClass(ValueSource source) {
return TInstance.tClass(source.getType());
}