JDK 11 java.management.jmod - Management Module

JDK 11 java.management.jmod is the JMOD file for JDK 11 Management module.

JDK 11 Management module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.management.jmod.

JDK 11 Management module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Management module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.management.

You can click and view the content of each source code file in the list below.

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javax/management/openmbean/CompositeDataView.java

/*
 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package javax.management.openmbean;

/**
 * <p>A Java class can implement this interface to indicate how it is
 * to be converted into a {@code CompositeData} by the MXBean framework.</p>
 *
 * <p>A typical way to use this class is to add extra items to the
 * {@code CompositeData} in addition to the ones that are declared in the
 * {@code CompositeType} supplied by the MXBean framework.  To do this,
 * you must create another {@code CompositeType} that has all the same items,
 * plus your extra items.</p>
 *
 * <p>For example, suppose you have a class {@code Measure} that consists of
 * a String called {@code units} and a {@code value} that is either a
 * {@code long} or a {@code double}.  It might look like this:</p>
 *
 * <pre>
 * public class Measure implements CompositeDataView {
 *     private String units;
 *     private Number value; // a Long or a Double
 *
 *     public Measure(String units, Number value) {
 *         this.units = units;
 *         this.value = value;
 *     }
 *
 *     public static Measure from(CompositeData cd) {
 *         return new Measure((String) cd.get("units"),
 *                            (Number) cd.get("value"));
 *     }
 *
 *     public String getUnits() {
 *         return units;
 *     }
 *
 *     // Can't be called getValue(), because Number is not a valid type
 *     // in an MXBean, so the implied "value" property would be rejected.
 *     public Number _getValue() {
 *         return value;
 *     }
 *
 *     public CompositeData toCompositeData(CompositeType ct) {
 *         try {
 *             {@code List<String> itemNames = new ArrayList<String>(ct.keySet());}
 *             {@code List<String> itemDescriptions = new ArrayList<String>();}
 *             {@code List<OpenType<?>> itemTypes = new ArrayList<OpenType<?>>();}
 *             for (String item : itemNames) {
 *                 itemDescriptions.add(ct.getDescription(item));
 *                 itemTypes.add(ct.getType(item));
 *             }
 *             itemNames.add("value");
 *             itemDescriptions.add("long or double value of the measure");
 *             itemTypes.add((value instanceof Long) ? SimpleType.LONG :
 *                           SimpleType.DOUBLE);
 *             CompositeType xct =
 *                 new CompositeType(ct.getTypeName(),
 *                                   ct.getDescription(),
 *                                   itemNames.toArray(new String[0]),
 *                                   itemDescriptions.toArray(new String[0]),
 *                                   itemTypes.toArray(new OpenType&lt;?&gt;[0]));
 *             CompositeData cd =
 *                 new CompositeDataSupport(xct,
 *                                          new String[] {"units", "value"},
 *                                          new Object[] {units, value});
 *             assert ct.isValue(cd);  // check we've done it right
 *             return cd;
 *         } catch (Exception e) {
 *             throw new RuntimeException(e);
 *         }
 *     }
 * }
 * </pre>
 *
 * <p>The {@code CompositeType} that will appear in the {@code openType} field
 * of the {@link javax.management.Descriptor Descriptor} for an attribute or
 * operation of this type will show only the {@code units} item, but the actual
 * {@code CompositeData} that is generated will have both {@code units} and
 * {@code value}.</p>
 *
 * @see javax.management.MXBean
 *
 * @since 1.6
 */
public interface CompositeDataView {
    /**
     * <p>Return a {@code CompositeData} corresponding to the values in
     * this object.  The returned value should usually be an instance of
     * {@link CompositeDataSupport}, or a class that serializes as a
     * {@code CompositeDataSupport} via a {@code writeReplace} method.
     * Otherwise, a remote client that receives the object might not be
     * able to reconstruct it.
     *
     * @param ct The expected {@code CompositeType} of the returned
     * value.  If the returned value is {@code cd}, then
     * {@code cd.getCompositeType().equals(ct)} should be true.
     * Typically this will be because {@code cd} is a
     * {@link CompositeDataSupport} constructed with {@code ct} as its
     * {@code CompositeType}.
     *
     * @return the {@code CompositeData}.
     */
    public CompositeData toCompositeData(CompositeType ct);
}

javax/management/openmbean/CompositeDataView.java

 

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File name: java.management-11.0.1-src.zip
File size: 828174 bytes
Release date: 2018-11-04
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