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1 files changed, 118 insertions, 0 deletions

diff --git a/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/access/EOAdaptorContext.java b/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/access/EOAdaptorContext.java
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+++ b/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/access/EOAdaptorContext.java
@@ -0,0 +1,118 @@
+/*
+ Wotonomy: OpenStep design patterns for pure Java applications.
+ Copyright (C) 2001 Michael Powers
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see http://www.gnu.org
+ */
+package net.wotonomy.access;
+
+import net.wotonomy.foundation.NSArray;
+import net.wotonomy.foundation.NSMutableArray;
+import net.wotonomy.foundation.NSNotificationCenter;
+
+/**
+*
+* @author ezamudio@nasoft.com
+* @author $Author: cgruber $
+* @version $Revision: 894 $
+*/
+
+public abstract class EOAdaptorContext {
+
+	public static final String AdaptorContextBeginTransactionNotification = "AdaptorContextBeginTransaction";
+	public static final String AdaptorContextCommitTransactionNotification = "AdaptorContextCommitTransaction";
+	public static final String AdaptorContextRollbackTransactionNotification = "AdaptorContextRollbackTransaction";
+
+	protected EOAdaptor _adaptor;
+	protected NSMutableArray _channels = new NSMutableArray();
+	protected boolean _hasOpenTransaction;
+
+	public EOAdaptorContext(EOAdaptor adaptor) {
+		super();
+		_adaptor = adaptor;
+	}
+
+	public EOAdaptor adaptor() {
+		return _adaptor;
+	}
+
+	public abstract void beginTransaction();
+
+	public abstract void commitTransaction();
+
+	public abstract void rollbackTransaction();
+
+	public abstract EOAdaptorChannel createAdaptorChannel();
+
+	public abstract void handleDroppedConnection();
+
+	public NSArray channels() {
+		return new NSArray(_channels);
+	}
+
+	public boolean hasBusyChannels() {
+		for (int i = 0; i < _channels.count(); i++) {
+			EOAdaptorChannel chan = (EOAdaptorChannel)_channels.objectAtIndex(i);
+			if (chan.isFetchInProgress())
+				return true;
+		}
+		return false;
+	}
+
+	public boolean hasOpenChannels() {
+		for (int i = 0; i < _channels.count(); i++) {
+			EOAdaptorChannel chan = (EOAdaptorChannel)_channels.objectAtIndex(i);
+			if (chan.isOpen())
+				return true;
+		}
+		return false;
+	}
+
+	public boolean hasOpenTransaction() {
+		return _hasOpenTransaction;
+	}
+
+	public void transactionDidBegin() {
+		_hasOpenTransaction = true;
+		NSNotificationCenter.defaultCenter().postNotification(
+			AdaptorContextBeginTransactionNotification, this);
+	}
+
+	public void transactionDidCommit() {
+		_hasOpenTransaction = false;
+		NSNotificationCenter.defaultCenter().postNotification(
+			AdaptorContextCommitTransactionNotification, this);
+	}
+
+	public void transactionDidRollback() {
+		_hasOpenTransaction = false;
+		NSNotificationCenter.defaultCenter().postNotification(
+			AdaptorContextRollbackTransactionNotification, this);
+	}
+
+}
+/*
+ * $Log$
+ * Revision 1.2  2006/02/16 16:47:14  cgruber
+ * Move some classes in to "internal" packages and re-work imports, etc.
+ *
+ * Also use UnsupportedOperationExceptions where appropriate, instead of WotonomyExceptions.
+ *
+ * Revision 1.1  2006/02/16 13:19:57  cgruber
+ * Check in all sources in eclipse-friendly maven-enabled packages.
+ *
+ * Revision 1.1  2003/08/13 00:37:45  chochos
+ * an almost complete implementation of the abstract adaptor-layer classes
+ *
+ */
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