property.java

来自「270的linux说明」· Java 代码 · 共 136 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;

/**
 * Base class for all properties of various data types.
 */
public abstract class Property extends Object
{
    /**
     * Property Changed event when its value has changed.
     * Only valid for non-static properties.
     */
    public EventProperty Changed;
    
    protected InstanceObject parent;
    
    // Constructor
    protected Property()
    {
        this.deleteNative = false;
    }
    
    /**
     * Get parent instance object which contains this property.
     * @return
     */
    public InstanceObject GetParent()
    {
        return parent;
    }
    
    /**
     * Get property name which is declared in its parent instance object.
     * @return
     * @throws IntelMobileException
     */
    public String GetName() throws IntelMobileException
    {
        return GetNameNative();
    }

	/**
	 * Get property type.
	 * @return
	 * @throws IntelMobileException
	 */
	public String GetType() throws IntelMobileException
	{
		return GetTypeNative();
	}
    
    /**
     * Judge if the value of this property has been set or is available.
     * @return true if the value has not been set or is not available. 
     * @throws IntelMobileException
     */
    public boolean IsNull() throws IntelMobileException
    {
        return IsNullNative();
    }
    
    /**
     * Judge if the property value can be set by applications.
     * @return true if the value can be set by applications.
     * @throws IntelMobileException
     */
    public boolean IsSettable() throws IntelMobileException
    {
        return IsSettableNative();
    }
    
    /**
     * Judge if the property value can change or not.
     * @return true if the value never changes.
     * @throws IntelMobileException
     */
    public boolean IsStatic() throws IntelMobileException
    {
        return IsStaticNative();
    }
    
    /**
     * Judge if this property is available.
     * @return true if the property is available. 
     * @throws IntelMobileException
     */
    public boolean IsAvailable() throws IntelMobileException
    {
        return IsAvailableNative();
    }
    
    private native String GetNameNative() throws IntelMobileException;
	private native String GetTypeNative() throws IntelMobileException;
    private native boolean IsNullNative() throws IntelMobileException;
    private native boolean IsSettableNative() throws IntelMobileException;
    private native boolean IsStaticNative() throws IntelMobileException;
    private native boolean IsAvailableNative() throws IntelMobileException;
}