1 files changed, 57 insertions, 0 deletions
diff --git a/src/interfaces/jdbc/org/postgresql/ObjectPoolFactory.java b/src/interfaces/jdbc/org/postgresql/ObjectPoolFactory.java
new file mode 100644
index 0000000000..404c366daa
--- /dev/null
+++ b/src/interfaces/jdbc/org/postgresql/ObjectPoolFactory.java
@@ -0,0 +1,57 @@
+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();
+	    }
+	}
+    }
+}