1 files changed, 50 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/Or.java b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/Or.java
new file mode 100644
index 000000000..32805042e
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/Or.java
@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2009 Cloudsmith Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Cloudsmith Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.equinox.internal.p2.metadata.expression;
+
+import org.eclipse.equinox.p2.metadata.expression.IEvaluationContext;
+
+/**
+ * n-ary OR operator. The full evaluation is <code>false</code> if none of its operands
+ * evaluate to <code>true</code>.
+ */
+final class Or extends NAry {
+	public Or(Expression[] operands) {
+		super(assertLength(operands, 2, OPERATOR_OR));
+	}
+
+	public Object evaluate(IEvaluationContext context) {
+		for (int idx = 0; idx < operands.length; ++idx) {
+			if (operands[idx].evaluate(context) == Boolean.TRUE)
+				return Boolean.TRUE;
+		}
+		return Boolean.FALSE;
+	}
+
+	public int getExpressionType() {
+		return TYPE_OR;
+	}
+
+	public String getOperator() {
+		return OPERATOR_OR;
+	}
+
+	public int getPriority() {
+		return PRIORITY_OR;
+	}
+
+	public void toLDAPString(StringBuffer buf) {
+		buf.append("(|"); //$NON-NLS-1$
+		for (int idx = 0; idx < operands.length; ++idx)
+			operands[idx].toLDAPString(buf);
+		buf.append(')');
+	}
+}