pbwest 2002/11/26 19:27:11
Modified: src/org/apache/fop/xml Tag: FOP_0-20-0_Alt-Design
XMLEventPool.java
Log:
Changed pool from a LinkedList to an ArrayList.
Changed surrenderXMLEvent() to surrenderEvent().
Revision Changes Path
No revision
No revision
1.1.2.2 +33 -14 xml-fop/src/org/apache/fop/xml/Attic/XMLEventPool.java
Index: XMLEventPool.java
===================================================================
RCS file: /home/cvs/xml-fop/src/org/apache/fop/xml/Attic/XMLEventPool.java,v
retrieving revision 1.1.2.1
retrieving revision 1.1.2.2
diff -u -r1.1.2.1 -r1.1.2.2
--- XMLEventPool.java 23 Nov 2002 14:42:05 -0000 1.1.2.1
+++ XMLEventPool.java 27 Nov 2002 03:27:11 -0000 1.1.2.2
@@ -3,7 +3,7 @@
import org.apache.fop.apps.FOPException;
import org.apache.fop.xml.XMLEvent;
-import java.util.LinkedList;
+import java.util.ArrayList;
/*
* $Id$
@@ -24,16 +24,30 @@
/** Required argument for constructing new <tt>XMLEvent</tt>s. */
protected XMLNamespaces namespaces;
- /** The pool realized as a LinkedList. */
- protected LinkedList pool = new LinkedList();
+ /** The pool realized as a ArrayList. */
+ protected ArrayList pool;
+ /** The number of events in the list. */
+ protected int poolSize = 0;
+ /** The maximum number of events in the list. */
+ protected int maxPoolSize = 0;
/**
- * The one-argument constructor uses the default initialization values:
- * NOEVENT for the event <i>type</i>, and null references for all others
- * except <i>namespaces</i>.
+ * The one-argument constructor requires <i>namespaces</i>.
+ * @param namespaces - an <tt>XMLNamespaces</tt> object.
*/
public XMLEventPool(XMLNamespaces namespaces) {
this.namespaces = namespaces;
+ pool = new ArrayList();
+ }
+
+ /**
+ * Construct a pool with a given initial size.
+ * @param namespaces - an <tt>XMLNamespaces</tt> object.
+ * @param initialSize - the initial size of the pool.
+ */
+ public XMLEventPool(XMLNamespaces namespaces, int initialSize) {
+ this.namespaces = namespaces;
+ pool = new ArrayList(initialSize);
}
/**
@@ -41,18 +55,23 @@
* @return an <tt>XMLEvent</tt>.
*/
public synchronized XMLEvent acquireXMLEvent() {
- if (pool.size() == 0)
+ if (poolSize == 0)
return new XMLEvent(namespaces);
- return (XMLEvent)(pool.removeLast());
+ return ((XMLEvent)(pool.get(--poolSize))).clear();
}
/**
* Return an <tt>XMLEvent</tt> to the pool.
* @param ev - the event being returned.
*/
- public synchronized void surrenderXMLEvent(XMLEvent ev) {
- ev.clear();
- pool.add(ev);
+ public synchronized void surrenderEvent(XMLEvent ev) {
+ if (maxPoolSize > poolSize)
+ pool.set(poolSize++, ev);
+ else {
+ pool.add(ev);
+ poolSize++;
+ maxPoolSize = poolSize;
+ }
}
/**
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