1 files changed, 81 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.repository/src/org/eclipse/equinox/p2/repository/artifact/ArtifactKeyQuery.java b/bundles/org.eclipse.equinox.p2.repository/src/org/eclipse/equinox/p2/repository/artifact/ArtifactKeyQuery.java
new file mode 100644
index 000000000..0d48ccabf
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.repository/src/org/eclipse/equinox/p2/repository/artifact/ArtifactKeyQuery.java
@@ -0,0 +1,81 @@
+/*******************************************************************************
+ * Copyright (c) 2009 IBM Corporation 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:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.equinox.p2.repository.artifact;
+
+import org.eclipse.equinox.p2.metadata.VersionRange;
+
+import org.eclipse.equinox.p2.metadata.IArtifactKey;
+import org.eclipse.equinox.p2.query.MatchQuery;
+
+/**
+ * An IArtifactQuery returning matching IArtifactKey objects.
+ * @since 2.0
+ */
+public class ArtifactKeyQuery extends MatchQuery<IArtifactKey> {
+	public static final ArtifactKeyQuery ALL_KEYS = new ArtifactKeyQuery();
+
+	private String id;
+	private String classifier;
+	private VersionRange range;
+	private IArtifactKey artifactKey;
+
+	/**
+	 * Pass the id and/or version range to match IArtifactKeys against.
+	 * Passing null results in matching any id/version
+	 * @param classifier The artifact key classifier, or <code>null</code>
+	 * @param id The artifact key id, or <code>null</code>
+	 * @param range A version range, or <code>null</code>
+	 */
+	public ArtifactKeyQuery(String classifier, String id, VersionRange range) {
+		this.id = id;
+		this.classifier = classifier;
+		this.range = range;
+	}
+
+	public ArtifactKeyQuery() {
+		//matches everything
+	}
+
+	public ArtifactKeyQuery(IArtifactKey key) {
+		this.artifactKey = key;
+	}
+
+	public boolean isMatch(IArtifactKey key) {
+		if (artifactKey != null)
+			return matchKey(key);
+
+		if (classifier != null && !key.getClassifier().equals(classifier))
+			return false;
+
+		if (id != null && !key.getId().equals(id))
+			return false;
+
+		if (range != null && !range.isIncluded(key.getVersion()))
+			return false;
+
+		return true;
+	}
+
+	protected boolean matchKey(IArtifactKey candidate) {
+		return artifactKey.equals(candidate);
+	}
+
+	// We are interested in IArtifactKey objects
+	public Boolean getExcludeArtifactKeys() {
+		return Boolean.FALSE;
+	}
+
+	// We are not interested in IArtifactDescriptor objects
+	public Boolean getExcludeArtifactDescriptors() {
+		return Boolean.TRUE;
+	}
+}