uint64property.java

来自「270的linux说明」· Java 代码 · 共 93 行

/*

Copyright (c) 2008, Intel Corporation. 

All rights reserved.

 

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:


    * Redistributions of source code must retain the above copyright notice, 
this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright notice, 
this list of conditions and the following disclaimer in the documentation and/or 
other materials provided with the distribution.

    * Neither the name of Intel Corporation nor the names of its contributors 
may be used to endorse or promote products derived from this software without 
specific prior written permission.

 

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.

*/

package com.intel.mobile.base;

import java.math.BigInteger;

/**
 * Property for unsigned Int64/long type.
 */
public class UInt64Property extends Property
{
    // Constructor
    private UInt64Property(long objRef, InstanceObject parent)
    {
        this.nativeObjRef = objRef;
        this.parent = parent;
    }
    
    /**
     * Get the value of this property.
     * Should test whether the value is null using isNull() before calling this method.
     * @return
     * @throws IntelMobileException
     */
    public long GetValue() throws IntelMobileException
    {
        return GetValueNative();
    }
    
    /**
     * Set the value of this property.
     * Should test whether the value can be set using isSettable() before calling this method.
     * @param value
     * @return
     * @throws IntelMobileException
     */
    public boolean SetValue(long value) throws IntelMobileException
    {
        return SetValueNative(value);

    }
    
    /**
     * Utility method to get positive value.
     * @param value
     * @return
     */
    public static String toUnsignedString(long value)
    {
        return (value > 0) ? Long.toString(value) :
                new BigInteger(Long.toHexString(value), 16).toString();
    }
    
    private native long GetValueNative() throws IntelMobileException;
    private native boolean SetValueNative(long value) throws IntelMobileException;
}