import org.postgresql.util.*;
/**
- * $Id: Connection.java,v 1.6 2000/09/12 05:09:54 momjian Exp $
+ * $Id: Connection.java,v 1.7 2000/10/08 19:37:54 momjian Exp $
*
* This abstract class is used by org.postgresql.Driver to open either the JDBC1 or
* JDBC2 versions of the Connection class.
// The PID an cancellation key we get from the backend process
public int pid;
public int ckey;
+
+ // This receive_sbuf should be used by the different methods
+ // that call pg_stream.ReceiveString() in this Connection, so
+ // so we avoid uneccesary new allocations.
+ byte receive_sbuf[] = new byte[8192];
/**
* This is called by Class.forName() from within org.postgresql.Driver
// The most common one to be thrown here is:
// "User authentication failed"
//
- throw new SQLException(pg_stream.ReceiveString
- (4096, getEncoding()));
+ String msg = pg_stream.ReceiveString(receive_sbuf, 4096,
+ getEncoding());
+ throw new SQLException(msg);
case 'R':
// Get the type of request
case 'E':
case 'N':
throw new SQLException(pg_stream.ReceiveString
- (4096, getEncoding()));
+ (receive_sbuf, 4096, getEncoding()));
default:
throw new PSQLException("postgresql.con.setup");
}
break;
case 'E':
case 'N':
- throw new SQLException(pg_stream.ReceiveString(4096));
+ throw new SQLException(pg_stream.ReceiveString(receive_sbuf, 4096, getEncoding()));
default:
throw new PSQLException("postgresql.con.setup");
}
//
firstWarning = null;
- ExecSQL("set datestyle to 'ISO'");
+ ExecSQL(null, "set datestyle to 'ISO'");
// Initialise object handling
initObjectTypes();
//currentDateStyle=i+1; // this is the index of the format
//}
}
-
+
+
/**
* Send a query to the backend. Returns one of the ResultSet
* objects.
* <B>Note:</B> there does not seem to be any method currently
* in existance to return the update count.
*
+ * @param stmt The statment object.
* @param sql the SQL statement to be executed
* @return a ResultSet holding the results
* @exception SQLException if a database error occurs
*/
- public java.sql.ResultSet ExecSQL(String sql) throws SQLException
+ public java.sql.ResultSet ExecSQL(PGStatement stmt,
+ String sql) throws SQLException
{
// added Oct 7 1998 to give us thread safety.
synchronized(pg_stream) {
-
+ pg_stream.setExecutingStatement(stmt);
+
Field[] fields = null;
Vector tuples = new Vector();
byte[] buf = null;
try
{
pg_stream.SendChar('Q');
- buf = sql.getBytes();
- pg_stream.Send(buf);
+ pg_stream.Send(sql.getBytes());
pg_stream.SendChar(0);
pg_stream.flush();
} catch (IOException e) {
{
case 'A': // Asynchronous Notify
pid = pg_stream.ReceiveInteger(4);
- msg = pg_stream.ReceiveString(8192);
+ msg = pg_stream.ReceiveString(receive_sbuf, 8192,
+ getEncoding());
break;
case 'B': // Binary Data Transfer
if (fields == null)
tuples.addElement(tup);
break;
case 'C': // Command Status
- recv_status = pg_stream.ReceiveString(8192);
+ recv_status =
+ pg_stream.ReceiveString(receive_sbuf, 8192,
+ getEncoding());
// Now handle the update count correctly.
if(recv_status.startsWith("INSERT") || recv_status.startsWith("UPDATE") || recv_status.startsWith("DELETE")) {
tuples.addElement(tup);
break;
case 'E': // Error Message
- msg = pg_stream.ReceiveString(4096);
+ msg = pg_stream.ReceiveString(receive_sbuf, 4096,
+ getEncoding());
final_error = new SQLException(msg);
hfr = true;
break;
hfr = true;
break;
case 'N': // Error Notification
- addWarning(pg_stream.ReceiveString(4096));
+ addWarning(pg_stream.ReceiveString(receive_sbuf,
+ 4096,
+ getEncoding()));
break;
case 'P': // Portal Name
- String pname = pg_stream.ReceiveString(8192);
+ String pname =
+ pg_stream.ReceiveString(receive_sbuf, 8192,
+ getEncoding());
break;
case 'T': // MetaData Field Description
if (fields != null)
}
}
+
+
/**
* Receive the field descriptions from the back end
*
for (i = 0 ; i < nf ; ++i)
{
- String typname = pg_stream.ReceiveString(8192);
+ String typname = pg_stream.ReceiveString(receive_sbuf, 8192,
+ getEncoding());
int typid = pg_stream.ReceiveIntegerR(4);
int typlen = pg_stream.ReceiveIntegerR(2);
int typmod = pg_stream.ReceiveIntegerR(4);
// it's not in the cache, so perform a query, and add the result to
// the cache
if(type_name==null) {
- ResultSet result = (org.postgresql.ResultSet)conn.ExecSQL("select typname from pg_type where oid = " + oid);
+ ResultSet result = (org.postgresql.ResultSet)
+ conn.ExecSQL(null, "select typname from pg_type where oid = "
+ + oid);
if (result.getColumnCount() != 1 || result.getTupleCount() != 1)
throw new PSQLException("postgresql.unexpected");
result.next();
--- /dev/null
+package org.postgresql;
+
+/**
+ * A simple and fast object pool implementation that can pool objects
+ * of any type. This implementation is not thread safe, it is up to the users
+ * of this class to assure thread safety.
+ */
+public class ObjectPool {
+ int cursize = 0;
+ int maxsize = 8;
+ Object arr[] = new Object[8];
+
+ /**
+ * Add object to the pool.
+ * @param o The object to add.
+ */
+ public void add(Object o){
+ if(cursize >= maxsize){
+ Object newarr[] = new Object[maxsize*2];
+ System.arraycopy(arr, 0, newarr, 0, maxsize);
+ maxsize = maxsize * 2;
+ arr = newarr;
+ }
+ arr[cursize++] = o;
+ }
+
+ /**
+ * Remove an object from the pool. If the pool is empty
+ * ArrayIndexOutOfBoundsException will be thrown.
+ * @return Returns the removed object.
+ * @exception If the pool is empty
+ * ArrayIndexOutOfBoundsException will be thrown.
+ */
+ public Object remove(){
+ Object o = arr[cursize-1];
+ // This have to be here, so we don't decrease the counter when
+ // cursize == 0;
+ cursize--;
+ return o;
+ }
+
+ /**
+ * Check if pool is empty.
+ * @return true if pool is empty, false otherwise.
+ */
+ public boolean isEmpty(){
+ return cursize == 0;
+ }
+
+ /**
+ * Get the size of the pool.
+ * @return Returns the number of objects in the pool.
+ */
+ public int size(){
+ return cursize;
+ }
+ /**
+ * Add all the objects from another pool to this pool.
+ * @pool The pool to add the objects from.
+ */
+ public void addAll(ObjectPool pool){
+ int srcsize = pool.size();
+ if(srcsize == 0)
+ return;
+ int totalsize = srcsize + cursize;
+ if(totalsize > maxsize){
+ Object newarr[] = new Object[totalsize*2];
+ System.arraycopy(arr, 0, newarr, 0, cursize);
+ maxsize = maxsize = totalsize * 2;
+ arr = newarr;
+ }
+ System.arraycopy(pool.arr, 0, arr, cursize, srcsize);
+ cursize = totalsize;
+ }
+
+ /**
+ * Clear the elements from this pool.
+ * The method is lazy, so it just resets the index counter without
+ * removing references to pooled objects. This could possibly
+ * be an issue with garbage collection, depending on how the
+ * pool is used.
+ */
+ public void clear(){
+ cursize = 0;
+ }
+}
--- /dev/null
+package org.postgresql;
+
+import java.util.Hashtable;
+
+/**
+ * Just a factory class for creating and reusing
+ * ObjectPool arrays of different sizes.
+ */
+public class ObjectPoolFactory {
+ private static Hashtable instances = new Hashtable();
+
+ ObjectPool pool = new ObjectPool();
+ int maxsize;
+
+ public static ObjectPoolFactory getInstance(int size){
+ Integer s = new Integer(size);
+ ObjectPoolFactory poolFactory = (ObjectPoolFactory) instances.get(s);
+ if(poolFactory == null){
+ synchronized(instances) {
+ poolFactory = (ObjectPoolFactory) instances.get(s);
+ if(poolFactory == null){
+ poolFactory = new ObjectPoolFactory(size);
+ instances.put(s, poolFactory);
+ }
+ }
+ }
+ return poolFactory;
+ }
+
+ private ObjectPoolFactory(int maxsize){
+ this.maxsize = maxsize;
+ }
+
+ public ObjectPool[] getObjectPoolArr(){
+ ObjectPool p[] = null;
+ synchronized(pool){
+ if(pool.size() > 0)
+ p = (ObjectPool []) pool.remove();
+ }
+ if(p == null) {
+ p = new ObjectPool[maxsize];
+ for(int i = 0; i < maxsize; i++){
+ p[i] = new ObjectPool();
+ }
+ }
+ return p;
+ }
+
+ public void releaseObjectPoolArr(ObjectPool p[]){
+ synchronized(pool){
+ pool.add(p);
+ for(int i = 0; i < maxsize; i++){
+ p[i].clear();
+ }
+ }
+ }
+}
--- /dev/null
+package org.postgresql;
+
+import java.sql.Statement;
+import java.sql.SQLException;
+
+public abstract class PGStatement implements Statement {
+ public ObjectPool inusemap_dim1[];
+ public ObjectPool inusemap_dim2[];
+ protected Connection connection;
+
+ public PGStatement(Connection connection){
+ this.connection = connection;
+ inusemap_dim1 = connection.pg_stream.factory_dim1.getObjectPoolArr();
+ inusemap_dim2 = connection.pg_stream.factory_dim2.getObjectPoolArr();
+ }
+
+ public void deallocate(){
+ connection.pg_stream.deallocate(this);
+ }
+
+ public void close() throws SQLException {
+ deallocate();
+ connection.pg_stream.factory_dim1.releaseObjectPoolArr(inusemap_dim1);
+ connection.pg_stream.factory_dim2.releaseObjectPoolArr(inusemap_dim2);
+ }
+}
private Socket connection;
private InputStream pg_input;
private BufferedOutputStream pg_output;
-
+
+ public PGStatement executingStatement;
+
+
/**
* Constructor: Connect to the PostgreSQL back end and return
* a stream connection.
pg_output = new BufferedOutputStream(connection.getOutputStream(), 8192);
}
+ /**
+ * Set the currently executing statement. This is used to bind cached byte
+ * arrays to a Statement, so the statement can return the to the global
+ * pool of unused byte arrays when they are no longer inuse.
+ */
+ public void setExecutingStatement(PGStatement executingStatement){
+ this.executingStatement = executingStatement;
+ }
+
/**
* Sends a single character to the back end
*
*/
public void SendInteger(int val, int siz) throws IOException
{
- byte[] buf = new byte[siz];
+ byte[] buf = allocByteDim1(siz);
while (siz-- > 0)
{
*/
public void SendIntegerReverse(int val, int siz) throws IOException
{
- byte[] buf = new byte[siz];
+ byte[] buf = allocByteDim1(siz);
int p=0;
while (siz-- > 0)
{
return n;
}
- public String ReceiveString(int maxsize) throws SQLException {
- return ReceiveString(maxsize, null);
- }
-
+
/**
* Receives a null-terminated string from the backend. Maximum of
* maxsiz bytes - if we don't see a null, then we assume something
* has gone wrong.
*
+ * @param maxsiz maximum length of string
+ * @return string from back end
+ * @exception SQLException if an I/O error occurs
+ */
+ public String ReceiveString(int maxsiz) throws SQLException
+ {
+ return ReceiveString(maxsiz, null);
+ }
+
+ /**
+ * Receives a null-terminated string from the backend. Maximum of
+ * maxsiz bytes - if we don't see a null, then we assume something
+ * has gone wrong.
+ *
+ * @param maxsiz maximum length of string
* @param encoding the charset encoding to use.
- * @param maxsiz maximum length of string in bytes
* @return string from back end
* @exception SQLException if an I/O error occurs
*/
public String ReceiveString(int maxsiz, String encoding) throws SQLException
{
- byte[] rst = new byte[maxsiz];
+ byte[] rst = allocByteDim1(maxsiz);
+ return ReceiveString(rst, maxsiz, encoding);
+ }
+
+ /**
+ * Receives a null-terminated string from the backend. Maximum of
+ * maxsiz bytes - if we don't see a null, then we assume something
+ * has gone wrong.
+ *
+ * @param rst byte array to read the String into. rst.length must
+ * equal to or greater than maxsize.
+ * @param maxsiz maximum length of string in bytes
+ * @param encoding the charset encoding to use.
+ * @return string from back end
+ * @exception SQLException if an I/O error occurs
+ */
+ public String ReceiveString(byte rst[], int maxsiz, String encoding)
+ throws SQLException
+ {
int s = 0;
try
int c = pg_input.read();
if (c < 0)
throw new PSQLException("postgresql.stream.eof");
- else if (c == 0)
- break;
- else
+ else if (c == 0) {
+ rst[s] = 0;
+ break;
+ } else
rst[s++] = (byte)c;
}
if (s >= maxsiz)
{
int i, bim = (nf + 7)/8;
byte[] bitmask = Receive(bim);
- byte[][] answer = new byte[nf][0];
+ byte[][] answer = allocByteDim2(nf);
int whichbit = 0x80;
int whichbyte = 0;
*/
private byte[] Receive(int siz) throws SQLException
{
- byte[] answer = new byte[siz];
+ byte[] answer = allocByteDim1(siz);
Receive(answer,0,siz);
return answer;
}
pg_input.close();
connection.close();
}
+
+ /**
+ * Deallocate all resources that has been associated with any previous
+ * query.
+ */
+ public void deallocate(PGStatement stmt){
+
+ for(int i = 0; i < maxsize_dim1; i++){
+ synchronized(notusemap_dim1[i]){
+ notusemap_dim1[i].addAll(stmt.inusemap_dim1[i]);
+ }
+ stmt.inusemap_dim1[i].clear();
+ }
+
+ for(int i = 0; i < maxsize_dim2; i++){
+ synchronized(notusemap_dim2[i]){
+ notusemap_dim2[i].addAll(stmt.inusemap_dim2[i]);
+ }
+ stmt.inusemap_dim2[i].clear();
+ }
+ }
+
+ public static final int maxsize_dim1 = 256;
+ public static ObjectPool notusemap_dim1[] = new ObjectPool[maxsize_dim1];
+ public static byte binit[][] = new byte[maxsize_dim1][0];
+ public static final int maxsize_dim2 = 32;
+ public static ObjectPool notusemap_dim2[] = new ObjectPool[maxsize_dim2];
+ public static ObjectPoolFactory factory_dim1;
+ public static ObjectPoolFactory factory_dim2;
+
+ static {
+ for(int i = 0; i < maxsize_dim1; i++){
+ binit[i] = new byte[i];
+ notusemap_dim1[i] = new ObjectPool();
+ }
+ for(int i = 0; i < maxsize_dim2; i++){
+ notusemap_dim2[i] = new ObjectPool();
+ }
+ factory_dim1 = ObjectPoolFactory.getInstance(maxsize_dim1);
+ factory_dim2 = ObjectPoolFactory.getInstance(maxsize_dim2);
+ }
+
+ public byte[] allocByteDim1(int size){
+ if(size >= maxsize_dim1 || executingStatement == null){
+ return new byte[size];
+ }
+ ObjectPool not_usel = notusemap_dim1[size];
+ ObjectPool in_usel = executingStatement.inusemap_dim1[size];
+
+ byte b[] = null;
+
+ synchronized(not_usel){
+ if(!not_usel.isEmpty()) {
+ Object o = not_usel.remove();
+ b = (byte[]) o;
+ } else {
+ b = new byte[size];
+ }
+ }
+ in_usel.add(b);
+
+ return b;
+ }
+
+ public byte[][] allocByteDim2(int size){
+ if(size >= maxsize_dim2 || executingStatement == null){
+ return new byte[size][0];
+ }
+ ObjectPool not_usel = notusemap_dim2[size];
+ ObjectPool in_usel = executingStatement.inusemap_dim2[size];
+
+ byte b[][] = null;
+
+ synchronized(not_usel){
+ if(!not_usel.isEmpty()) {
+ Object o = not_usel.remove();
+ b = (byte[][]) o;
+ } else
+ b = new byte[size][0];
+
+ in_usel.add(b);
+ }
+
+ return b;
+ }
+
}
+
+
+
+
+
import org.postgresql.util.*;
/**
- * $Id: Connection.java,v 1.2 2000/06/06 11:06:04 peter Exp $
+ * $Id: Connection.java,v 1.3 2000/10/08 19:37:54 momjian Exp $
*
* A Connection represents a session with a specific database. Within the
* context of a Connection, SQL statements are executed and results are
if (this.autoCommit == autoCommit)
return;
if (autoCommit)
- ExecSQL("end");
+ ExecSQL(null, "end");
else
- ExecSQL("begin");
+ ExecSQL(null, "begin");
this.autoCommit = autoCommit;
}
{
if (autoCommit)
return;
- ExecSQL("commit");
+ ExecSQL(null, "commit");
autoCommit = true;
- ExecSQL("begin");
+ ExecSQL(null, "begin");
autoCommit = false;
}
{
if (autoCommit)
return;
- ExecSQL("rollback");
+ ExecSQL(null, "rollback");
autoCommit = true;
- ExecSQL("begin");
+ ExecSQL(null, "begin");
autoCommit = false;
}
switch(level) {
case java.sql.Connection.TRANSACTION_READ_COMMITTED:
- ExecSQL(q + " READ COMMITTED");
+ ExecSQL(null, q + " READ COMMITTED");
return;
case java.sql.Connection.TRANSACTION_SERIALIZABLE:
- ExecSQL(q + " SERIALIZABLE");
+ ExecSQL(null, q + " SERIALIZABLE");
return;
default:
*/
public int getTransactionIsolation() throws SQLException
{
- ExecSQL("show xactisolevel");
+ ExecSQL(null, "show xactisolevel");
SQLWarning w = getWarnings();
if (w != null) {
if(procedureNamePattern==null)
procedureNamePattern="%";
- r = connection.ExecSQL("select proname, proretset from pg_proc where proname like '"+procedureNamePattern.toLowerCase()+"' order by proname");
+ r = connection.ExecSQL(null, "select proname, proretset from pg_proc where proname like '"+procedureNamePattern.toLowerCase()+"' order by proname");
while (r.next())
{
sql.append("'");
// Now run the query
- r = connection.ExecSQL(sql.toString());
+ r = connection.ExecSQL(null, sql.toString());
byte remarks[];
byte[][] tuple = new byte[5][0];
// Fetch the description for the table (if any)
- java.sql.ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(2));
+ java.sql.ResultSet dr = connection.ExecSQL(null, "select description from pg_description where objoid="+r.getInt(2));
if(((org.postgresql.ResultSet)dr).getTupleCount()==1) {
dr.next();
remarks = dr.getBytes(1);
// Now form the query
// Modified by Stefan Andreasen <stefan@linux.kapow.dk>
- r = connection.ExecSQL("select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern.toLowerCase()+"' and a.attname like '"+columnNamePattern.toLowerCase()+"' and a.attnum>0 order by c.relname,a.attnum");
+ r = connection.ExecSQL(null, "select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern.toLowerCase()+"' and a.attname like '"+columnNamePattern.toLowerCase()+"' and a.attnum>0 order by c.relname,a.attnum");
byte remarks[];
byte[][] tuple = new byte[18][0];
// Fetch the description for the table (if any)
- java.sql.ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(1));
+ java.sql.ResultSet dr = connection.ExecSQL(null, "select description from pg_description where objoid="+r.getInt(1));
if(((org.postgresql.ResultSet)dr).getTupleCount()==1) {
dr.next();
tuple[11] = dr.getBytes(1);
tuple[2] = r.getBytes(2); // Table name
tuple[3] = r.getBytes(3); // Column name
- dr = connection.ExecSQL("select typname from pg_type where oid = "+r.getString(4));
+ dr = connection.ExecSQL(null, "select typname from pg_type where oid = "+r.getString(4));
dr.next();
String typname=dr.getString(1);
dr.close();
f[7] = new Field(connection,"IS_GRANTABLE",iVarcharOid,32);
// This is taken direct from the psql source
- java.sql.ResultSet r = connection.ExecSQL("SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner and relname like '"+table.toLowerCase()+"' ORDER BY relname");
+ java.sql.ResultSet r = connection.ExecSQL(null, "SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner and relname like '"+table.toLowerCase()+"' ORDER BY relname");
while(r.next()) {
byte[][] tuple = new byte[8][0];
tuple[0] = tuple[1]= "".getBytes();
*/
public java.sql.ResultSet getTypeInfo() throws SQLException
{
- java.sql.ResultSet rs = connection.ExecSQL("select typname from pg_type");
+ java.sql.ResultSet rs = connection.ExecSQL(null, "select typname from pg_type");
if(rs!=null) {
Field f[] = new Field[18];
ResultSet r; // ResultSet for the SQL query that we need to do
// org.postgresql.jdbc2 package.
import java.sql.*;
+import org.postgresql.PGStatement;
import org.postgresql.util.PSQLException;
* @see java.sql.Statement
* @see ResultSet
*/
-public class Statement implements java.sql.Statement
+public class Statement extends PGStatement implements java.sql.Statement
{
- Connection connection; // The connection who created us
java.sql.ResultSet result = null; // The current results
SQLWarning warnings = null; // The warnings chain.
int timeout = 0; // The timeout for a query (not used)
*/
public Statement (Connection c)
{
- connection = c;
+ super(c);
}
/**
*/
public void close() throws SQLException
{
- result = null;
+ super.close();
+ result = null;
}
/**
*/
public boolean execute(String sql) throws SQLException
{
- result = connection.ExecSQL(sql);
+ deallocate();
+ result = connection.ExecSQL(this, sql);
return (result != null && ((org.postgresql.ResultSet)result).reallyResultSet());
}
import org.postgresql.util.*;
/**
- * $Id: Connection.java,v 1.2 2000/06/06 11:06:09 peter Exp $
+ * $Id: Connection.java,v 1.3 2000/10/08 19:37:55 momjian Exp $
*
* A Connection represents a session with a specific database. Within the
* context of a Connection, SQL statements are executed and results are
if (this.autoCommit == autoCommit)
return;
if (autoCommit)
- ExecSQL("end");
+ ExecSQL(null, "end");
else
- ExecSQL("begin");
+ ExecSQL(null, "begin");
this.autoCommit = autoCommit;
}
{
if (autoCommit)
return;
- ExecSQL("commit");
+ ExecSQL(null, "commit");
autoCommit = true;
- ExecSQL("begin");
+ ExecSQL(null, "begin");
autoCommit = false;
}
{
if (autoCommit)
return;
- ExecSQL("rollback");
+ ExecSQL(null, "rollback");
autoCommit = true;
- ExecSQL("begin");
+ ExecSQL(null, "begin");
autoCommit = false;
}
switch(level) {
case java.sql.Connection.TRANSACTION_READ_COMMITTED:
- ExecSQL(q + " READ COMMITTED");
+ ExecSQL(null, q + " READ COMMITTED");
return;
case java.sql.Connection.TRANSACTION_SERIALIZABLE:
- ExecSQL(q + " SERIALIZABLE");
+ ExecSQL(null, q + " SERIALIZABLE");
return;
default:
*/
public int getTransactionIsolation() throws SQLException
{
- ExecSQL("show xactisolevel");
+ ExecSQL(null, "show xactisolevel");
SQLWarning w = getWarnings();
if (w != null) {
if(procedureNamePattern==null)
procedureNamePattern="%";
- r = connection.ExecSQL("select proname, proretset from pg_proc where proname like '"+procedureNamePattern.toLowerCase()+"' order by proname");
+ r = connection.ExecSQL(null,
+ "select proname, proretset from pg_proc where proname like '"+procedureNamePattern.toLowerCase()+"' order by proname");
while (r.next())
{
sql.append("'");
// Now run the query
- r = connection.ExecSQL(sql.toString());
+ r = connection.ExecSQL(null, sql.toString());
byte remarks[];
byte[][] tuple = new byte[5][0];
// Fetch the description for the table (if any)
- java.sql.ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(2));
+ java.sql.ResultSet dr = connection.ExecSQL(null, "select description from pg_description where objoid="+r.getInt(2));
if(((org.postgresql.ResultSet)dr).getTupleCount()==1) {
dr.next();
remarks = dr.getBytes(1);
// Now form the query
// Modified by Stefan Andreasen <stefan@linux.kapow.dk>
- r = connection.ExecSQL("select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern.toLowerCase()+"' and a.attname like '"+columnNamePattern.toLowerCase()+"' and a.attnum>0 order by c.relname,a.attnum");
+ r = connection.ExecSQL(null, "select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern.toLowerCase()+"' and a.attname like '"+columnNamePattern.toLowerCase()+"' and a.attnum>0 order by c.relname,a.attnum");
byte remarks[];
byte[][] tuple = new byte[18][0];
// Fetch the description for the table (if any)
- java.sql.ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(1));
+ java.sql.ResultSet dr = connection.ExecSQL(null, "select description from pg_description where objoid="+r.getInt(1));
if(((org.postgresql.ResultSet)dr).getTupleCount()==1) {
dr.next();
tuple[11] = dr.getBytes(1);
tuple[2] = r.getBytes(2); // Table name
tuple[3] = r.getBytes(3); // Column name
- dr = connection.ExecSQL("select typname from pg_type where oid = "+r.getString(4));
+ dr = connection.ExecSQL(null, "select typname from pg_type where oid = "+r.getString(4));
dr.next();
String typname=dr.getString(1);
dr.close();
f[7] = new Field(connection,"IS_GRANTABLE",iVarcharOid,32);
// This is taken direct from the psql source
- java.sql.ResultSet r = connection.ExecSQL("SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner and relname like '"+table.toLowerCase()+"' ORDER BY relname");
+ java.sql.ResultSet r = connection.ExecSQL(null, "SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner and relname like '"+table.toLowerCase()+"' ORDER BY relname");
while(r.next()) {
byte[][] tuple = new byte[8][0];
tuple[0] = tuple[1]= "".getBytes();
*/
public java.sql.ResultSet getTypeInfo() throws SQLException
{
- java.sql.ResultSet rs = connection.ExecSQL("select typname from pg_type");
+ java.sql.ResultSet rs = connection.ExecSQL(null, "select typname from pg_type");
if(rs!=null) {
Field f[] = new Field[18];
ResultSet r; // ResultSet for the SQL query that we need to do
import java.sql.*;
import java.util.Vector;
import org.postgresql.util.*;
+import org.postgresql.PGStatement;
/**
* A Statement object is used for executing a static SQL statement and
* @see java.sql.Statement
* @see ResultSet
*/
-public class Statement implements java.sql.Statement
+public class Statement extends PGStatement implements java.sql.Statement
{
- Connection connection; // The connection who created us
java.sql.ResultSet result = null; // The current results
SQLWarning warnings = null; // The warnings chain.
int timeout = 0; // The timeout for a query (not used)
*/
public Statement (Connection c)
{
- connection = c;
+ super(c);
}
/**
*/
public void close() throws SQLException
{
- result = null;
+ super.close();
+ result = null;
}
/**
{
if(escapeProcessing)
sql=connection.EscapeSQL(sql);
-
- result = connection.ExecSQL(sql);
+ deallocate();
+ result = connection.ExecSQL(this, sql);
return (result != null && ((org.postgresql.ResultSet)result).reallyResultSet());
}
// Second check, the type must be a table
boolean status = false;
- ResultSet rs = conn.ExecSQL("select typname from pg_type,pg_class where typname=relname and typname='"+type+"'");
+ ResultSet rs = conn.ExecSQL(null, "select typname from pg_type,pg_class where typname=relname and typname='"+type+"'");
if(rs!=null) {
if(rs.next())
status=true;
sb.append(oid);
DriverManager.println("store: "+sb.toString());
- ResultSet rs = conn.ExecSQL(sb.toString());
+ ResultSet rs = conn.ExecSQL(null, sb.toString());
if(rs!=null) {
if(rs.next()) {
for(int i=0;i<f.length;i++) {
}
DriverManager.println("store: "+sb.toString());
- ResultSet rs = conn.ExecSQL(sb.toString());
+ ResultSet rs = conn.ExecSQL(null, sb.toString());
if(rs!=null) {
rs.close();
}
// See if the table exists
String tableName = toPostgreSQL(c.getName());
- ResultSet rs = con.ExecSQL("select relname from pg_class where relname = '"+tableName+"'");
+ ResultSet rs = con.ExecSQL(null, "select relname from pg_class where relname = '"+tableName+"'");
if(!rs.next()) {
DriverManager.println("found "+rs.getString(1));
// No entries returned, so the table doesn't exist
// Now create the table
DriverManager.println("Serialize.create:"+sb);
- con.ExecSQL(sb.toString());
+ con.ExecSQL(null, sb.toString());
rs.close();
} else {
DriverManager.println("Serialize.create: table "+tableName+" exists, skipping");
projects / postgresql / commitdiff