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Diffstat (limited to 'bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/p2/metadata/expression/IExpressionVisitor.java')
| -rw-r--r-- | bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/p2/metadata/expression/IExpressionVisitor.java | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/p2/metadata/expression/IExpressionVisitor.java b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/p2/metadata/expression/IExpressionVisitor.java new file mode 100644 index 000000000..1c314d804 --- /dev/null +++ b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/p2/metadata/expression/IExpressionVisitor.java @@ -0,0 +1,26 @@ +/******************************************************************************* + * Copyright (c) 2009 - 2010 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.p2.metadata.expression; + +/** + * A general purpose visitor that will visit each node in an expression tree. + * @since 2.0 + */ +public interface IExpressionVisitor { + /** + * The method that will be called for each expression that is + * visited. + * @param expression The expression that the visitor visits. + * @return <code>true</code> to continue visiting other expressions or + * <code>false</code> to break out. + */ + boolean visit(IExpression expression); +}
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