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Diffstat (limited to 'bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/And.java')
-rw-r--r--bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/And.java50
1 files changed, 50 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/And.java b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/And.java
new file mode 100644
index 000000000..7e8adf20e
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/And.java
@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 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.internal.p2.metadata.expression;
+
+import org.eclipse.equinox.p2.metadata.expression.IEvaluationContext;
+
+/**
+ * n-ary AND operator. The full evaluation is <code>true</code> if all its operands evaluate to
+ * <code>true</code>.
+ */
+final class And extends NAry {
+ And(Expression[] operands) {
+ super(assertLength(operands, 2, OPERATOR_AND));
+ }
+
+ public Object evaluate(IEvaluationContext context) {
+ for (int idx = 0; idx < operands.length; ++idx) {
+ if (operands[idx].evaluate(context) != Boolean.TRUE)
+ return Boolean.FALSE;
+ }
+ return Boolean.TRUE;
+ }
+
+ public int getExpressionType() {
+ return TYPE_AND;
+ }
+
+ public String getOperator() {
+ return OPERATOR_AND;
+ }
+
+ public int getPriority() {
+ return PRIORITY_AND;
+ }
+
+ public void toLDAPString(StringBuffer buf) {
+ buf.append("(&"); //$NON-NLS-1$
+ for (int idx = 0; idx < operands.length; ++idx)
+ operands[idx].toLDAPString(buf);
+ buf.append(')');
+ }
+}

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