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/*******************************************************************************
* 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(')');
}
}
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