jdk/src/share/classes/javax/management/InQueryExp.java
changeset 2 90ce3da70b43
child 34 2d042367885f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/javax/management/InQueryExp.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,141 @@
+/*
+ * Copyright 1999-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package javax.management;
+
+
+/**
+ * This class is used by the query-building mechanism to represent binary
+ * operations.
+ * @serial include
+ *
+ * @since 1.5
+ */
+class InQueryExp extends QueryEval implements QueryExp {
+
+    /* Serial version */
+    private static final long serialVersionUID = -5801329450358952434L;
+
+    /**
+     * @serial The {@link ValueExp} to be found
+     */
+    private ValueExp val;
+
+    /**
+     * @serial The array of {@link ValueExp} to be searched
+     */
+    private ValueExp[]  valueList;
+
+
+    /**
+     * Basic Constructor.
+     */
+    public InQueryExp() {
+    }
+
+    /**
+     * Creates a new InQueryExp with the specified ValueExp to be found in
+     * a specified array of ValueExp.
+     */
+    public InQueryExp(ValueExp v1, ValueExp items[]) {
+        val       = v1;
+        valueList = items;
+    }
+
+
+    /**
+     * Returns the checked value of the query.
+     */
+    public ValueExp getCheckedValue()  {
+        return val;
+    }
+
+    /**
+     * Returns the array of values of the query.
+     */
+    public ValueExp[] getExplicitValues()  {
+        return valueList;
+    }
+
+    /**
+     * Applies the InQueryExp on a MBean.
+     *
+     * @param name The name of the MBean on which the InQueryExp will be applied.
+     *
+     * @return  True if the query was successfully applied to the MBean, false otherwise.
+     *
+     * @exception BadStringOperationException
+     * @exception BadBinaryOpValueExpException
+     * @exception BadAttributeValueExpException
+     * @exception InvalidApplicationException
+     */
+    public boolean apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,
+        BadAttributeValueExpException, InvalidApplicationException  {
+        if (valueList != null) {
+            ValueExp v      = val.apply(name);
+            boolean numeric = v instanceof NumericValueExp;
+
+            for (int i = 0; i < valueList.length; i++) {
+                if (numeric) {
+                    if (((NumericValueExp)valueList[i]).doubleValue() ==
+                        ((NumericValueExp)v).doubleValue()) {
+                        return true;
+                    }
+                } else {
+                    if (((StringValueExp)valueList[i]).getValue().equals(
+                        ((StringValueExp)v).getValue())) {
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Returns the string representing the object.
+     */
+    public String toString()  {
+        return val + " in (" + generateValueList() + ")";
+    }
+
+
+    private String generateValueList() {
+        if (valueList == null || valueList.length == 0) {
+            return "";
+        }
+
+        final StringBuilder result =
+                new StringBuilder(valueList[0].toString());
+
+        for (int i = 1; i < valueList.length; i++) {
+            result.append(", ");
+            result.append(valueList[i]);
+        }
+
+        return result.toString();
+    }
+
+ }