From: Dave Cramer <davec@fastcrypt.com>
Date: Fri, 22 Feb 2002 02:58:24 +0000 (+0000)
Subject: This patch fixes the exception thrown to inform the user the method
X-Git-Tag: REL7_3~2075
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8c17e4e0fca4fdbb2683c5e2674728bb6574145c;p=postgresql

This patch fixes the exception thrown to inform the user the method
getColumnClassName(int) is not implemented. This will futher fixes method
ResultSet.getObject(int) since it requires the getColumnClassName(int) method to return the proper java class used to map the database column.

auther Ed Yu
---

diff --git a/src/interfaces/jdbc/org/postgresql/jdbc2/ResultSetMetaData.java b/src/interfaces/jdbc/org/postgresql/jdbc2/ResultSetMetaData.java
index 7539a91c15..709fe1954b 100644
--- a/src/interfaces/jdbc/org/postgresql/jdbc2/ResultSetMetaData.java
+++ b/src/interfaces/jdbc/org/postgresql/jdbc2/ResultSetMetaData.java
@@ -473,8 +473,66 @@ public class ResultSetMetaData implements java.sql.ResultSetMetaData
 	// This can hook into our PG_Object mechanism
 	public String getColumnClassName(int column) throws SQLException
 	{
-		throw org.postgresql.Driver.notImplemented();
-	}
+ /*
+     The following data type mapping came from ../Field.java.
+
+     "int2",
+     "int4","oid",
+     "int8",
+     "cash","money",
+     "numeric",
+     "float4",
+     "float8",
+     "bpchar","char","char2","char4","char8","char16",
+     "varchar","text","name","filename",
+     "bool",
+     "date",
+     "time",
+     "abstime","timestamp"
+
+     Types.SMALLINT,
+     Types.INTEGER,Types.INTEGER,
+     Types.BIGINT,
+     Types.DOUBLE,Types.DOUBLE,
+     Types.NUMERIC,
+     Types.REAL,
+     Types.DOUBLE,
+     Types.CHAR,Types.CHAR,Types.CHAR,Types.CHAR,Types.CHAR,Types.CHAR,
+     Types.VARCHAR,Types.VARCHAR,Types.VARCHAR,Types.VARCHAR,
+     Types.BIT,
+     Types.DATE,
+     Types.TIME,
+     Types.TIMESTAMP,Types.TIMESTAMP
+ */
 
+	int sql_type = getField(column).getSQLType();
+
+     	switch (sql_type)
+        {
+       		case Types.BIT:
+         		return("java.lang.Boolean");
+       		case Types.SMALLINT:
+         		return("java.lang.Integer");
+       		case Types.INTEGER:
+         		return("java.lang.Integer");
+       		case Types.BIGINT:
+         		return("java.lang.Long");
+      		case Types.NUMERIC:
+         		return("java.math.BigDecimal");
+       		case Types.REAL:
+         		return("java.lang.Float");
+       		case Types.DOUBLE:
+         		return("java.lang.Double");
+       		case Types.CHAR:
+       		case Types.VARCHAR:
+         		return("java.lang.String");
+       		case Types.DATE:
+       		case Types.TIME:
+       		case Types.TIMESTAMP:
+         		return("java.sql.Timestamp");
+       		default:
+	 		throw org.postgresql.Driver.notImplemented();
+       }
+       
 }