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Commit41a20bb

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jdbc2 implementation of getImportedKeys.
Ola Sundell
1 parente046e1d commit41a20bb

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1 file changed

+109
-3
lines changed

1 file changed

+109
-3
lines changed

‎src/interfaces/jdbc/org/postgresql/jdbc2/DatabaseMetaData.java

Lines changed: 109 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1048,7 +1048,7 @@ public boolean supportsOpenCursorsAcrossRollback() throws SQLException
10481048
/**
10491049
* Can statements remain open across commits? They may, but
10501050
* this driver cannot guarentee that. In further reflection.
1051-
* we are talking a Statement objectjere, so the answer is
1051+
* we are talking a Statement objecthere, so the answer is
10521052
* yes, since the Statement is only a vehicle to ExecSQL()
10531053
*
10541054
* @return true if they always remain open; false otherwise
@@ -2183,6 +2183,81 @@ public java.sql.ResultSet getPrimaryKeys(String catalog, String schema, String t
21832183
);
21842184
}
21852185

2186+
privateVectorimportLoop(java.sql.ResultSetkeyRelation)throwsSQLException {
2187+
Strings,s2;
2188+
StringorigTable=null,primTable=newString(""),schema;
2189+
inti;
2190+
Vectorv;
2191+
2192+
s=keyRelation.getString(1);
2193+
s2=s;
2194+
System.out.println(s);
2195+
v=newVector();
2196+
for (i=0;;i++) {
2197+
s=s.substring(s.indexOf("\\000")+4);
2198+
if (s.compareTo("")==0) {
2199+
System.out.println();
2200+
break;
2201+
}
2202+
s2=s.substring(0,s.indexOf("\\000"));
2203+
switch (i) {
2204+
case0:
2205+
origTable=s2;
2206+
break;
2207+
case1:
2208+
primTable=s2;
2209+
break;
2210+
case2:
2211+
schema=s2;
2212+
break;
2213+
default:
2214+
v.add(s2);
2215+
}
2216+
}
2217+
2218+
java.sql.ResultSetrstmp=connection.ExecSQL("select * from "+origTable+" where 1=0");
2219+
java.sql.ResultSetMetaDataorigCols=rstmp.getMetaData();
2220+
2221+
Stringstmp;
2222+
Vectortuples=newVector();
2223+
bytetuple[][];
2224+
2225+
// the foreign keys are only on even positions in the Vector.
2226+
for (i=0;i<v.size();i+=2) {
2227+
stmp=(String)v.elementAt(i);
2228+
2229+
for (intj=1;j<=origCols.getColumnCount();j++) {
2230+
if (stmp.compareTo(origCols.getColumnName(j))==0) {
2231+
tuple=newbyte[14][0];
2232+
2233+
for (intk=0;k<14;k++)
2234+
tuple[k]=null;
2235+
2236+
//PKTABLE_NAME
2237+
tuple[2]=primTable.getBytes();
2238+
//PKTABLE_COLUMN
2239+
stmp=(String)v.elementAt(i+1);
2240+
tuple[3]=stmp.getBytes();
2241+
//FKTABLE_NAME
2242+
tuple[6]=origTable.getBytes();
2243+
//FKCOLUMN_NAME
2244+
tuple[7]=origCols.getColumnName(j).getBytes();
2245+
//KEY_SEQ
2246+
tuple[8]=Integer.toString(j).getBytes();
2247+
2248+
tuples.add(tuple);
2249+
2250+
System.out.println(origCols.getColumnName(j)+
2251+
": "+j+" -> "+primTable+": "+
2252+
(String)v.elementAt(i+1));
2253+
break;
2254+
}
2255+
}
2256+
}
2257+
2258+
returntuples;
2259+
}
2260+
21862261
/**
21872262
* Get a description of the primary key columns that are
21882263
* referenced by a table's foreign key columns (the primary keys
@@ -2236,8 +2311,39 @@ public java.sql.ResultSet getPrimaryKeys(String catalog, String schema, String t
22362311
*/
22372312
publicjava.sql.ResultSetgetImportedKeys(Stringcatalog,Stringschema,Stringtable)throwsSQLException
22382313
{
2239-
// XXX-Not Implemented
2240-
returnnull;
2314+
// Added by Ola Sundell <ola@miranda.org>
2315+
// FIXME: error checking galore!
2316+
java.sql.ResultSetrsret;
2317+
Fieldf[]=newField[14];
2318+
bytetuple[][];
2319+
2320+
f[0]=newField(connection,"PKTABLE_CAT",iVarcharOid,32);
2321+
f[1]=newField(connection,"PKTABLE_SCHEM",iVarcharOid,32);
2322+
f[2]=newField(connection,"PKTABLE_NAME",iVarcharOid,32);
2323+
f[3]=newField(connection,"PKCOLUMN_NAME",iVarcharOid,32);
2324+
f[4]=newField(connection,"FKTABLE_CAT",iVarcharOid,32);
2325+
f[5]=newField(connection,"FKTABLE_SCHEM",iVarcharOid,32);
2326+
f[6]=newField(connection,"FKTABLE_NAME",iVarcharOid,32);
2327+
f[7]=newField(connection,"FKCOLUMN_NAME",iVarcharOid,32);
2328+
f[8]=newField(connection,"KEY_SEQ",iInt2Oid,2);
2329+
f[9]=newField(connection,"UPDATE_RULE",iInt2Oid,2);
2330+
f[10]=newField(connection,"DELETE_RULE",iInt2Oid,2);
2331+
f[11]=newField(connection,"FK_NAME",iVarcharOid,32);
2332+
f[12]=newField(connection,"PK_NAME",iVarcharOid,32);
2333+
f[13]=newField(connection,"DEFERRABILITY",iInt2Oid,2);
2334+
2335+
java.sql.ResultSetrs=connection.ExecSQL("select t.tgargs "+
2336+
"from pg_class as c, pg_trigger as t "+
2337+
"where c.relname like '"+table+"' and c.relfilenode=t.tgrelid");
2338+
Vectortuples=newVector();
2339+
2340+
while (rs.next()) {
2341+
tuples.addAll(importLoop(rs));
2342+
}
2343+
2344+
rsret=newResultSet(connection,f,tuples,"OK",1);
2345+
2346+
returnrsret;
22412347
}
22422348

22432349
/**

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