Example usage for java.util.prefs PreferenceChangeListener PreferenceChangeListener

Introduction

In this page you can find the example usage for java.util.prefs PreferenceChangeListener PreferenceChangeListener.

Prototype

PreferenceChangeListener

Source Link

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {

    Preferences prefs = Preferences.userNodeForPackage(String.class);

    prefs.addPreferenceChangeListener(new PreferenceChangeListener() {
        public void preferenceChange(PreferenceChangeEvent evt) {

            Preferences node = evt.getNode();
            String key = evt.getKey();
            String newValue = evt.getNewValue();
        }//from   w ww . ja v a  2  s.c  o  m
    });
    prefs.put("key", "a string");
    prefs.put("key", "a new string");
    prefs.remove("key");
}

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From source file:com.symbian.utils.config.ConfigUtils.java

/**
 * @param aConfigMap/*from   ww  w. j  av a 2s  . c  o m*/
 * @param aPreferenceAddress
 * @param aPreferenceLiterals
 * @throws IOException
 */
protected ConfigUtils(String aPreferenceAddress, String[] aPreferenceLiterals) throws IOException {
    iNodeName = aPreferenceAddress;
    iConfigMap = new HashMap();
    iSavedConfig = new HashMap();
    iPreferenceLiterals = aPreferenceLiterals;

    iPrefrences = Preferences.userRoot().node(iNodeName);
    // if created for the first time, it needs to be flushed.
    try {
        iPrefrences.flush();
    } catch (BackingStoreException lBackingStoreException) {
        LOGGER.warning("Failed to flush the configuration: " + lBackingStoreException.getMessage());
    }
    // Register the listener for prefs changes
    iPrefrences.addPreferenceChangeListener(new PreferenceChangeListener() {
        public void preferenceChange(PreferenceChangeEvent evt) {
            try {
                iPrefrences.flush();
            } catch (BackingStoreException lBackingStoreException) {
                LOGGER.warning("Failed to flush the configuration: " + lBackingStoreException.getMessage());
            }
        }
    });
}

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From source file:com.jaspersoft.ireport.jasperserver.ws.CommonsHTTPSender.java

protected void initialize() {

    httpChunkStream = !IReportManager.getPreferences().getBoolean("jasperserver.preventChunkedRequests", true);

    IReportManager.getPreferences().addPreferenceChangeListener(new PreferenceChangeListener() {

        public void preferenceChange(PreferenceChangeEvent pce) {
            CommonsHTTPSender.this.httpChunkStream = !IReportManager.getPreferences()
                    .getBoolean("jasperserver.preventChunkedRequests", true);
        }//from  w ww . j ava 2s .  c o  m
    });

    MultiThreadedHttpConnectionManager cm = new MultiThreadedHttpConnectionManager();
    this.clientProperties = CommonsHTTPClientPropertiesFactory.create();
    cm.getParams().setDefaultMaxConnectionsPerHost(clientProperties.getMaximumConnectionsPerHost());
    cm.getParams().setMaxTotalConnections(clientProperties.getMaximumTotalConnections());
    // If defined, set the default timeouts
    // Can be overridden by the MessageContext
    if (this.clientProperties.getDefaultConnectionTimeout() > 0) {
        cm.getParams().setConnectionTimeout(this.clientProperties.getDefaultConnectionTimeout());
    }
    if (this.clientProperties.getDefaultSoTimeout() > 0) {
        cm.getParams().setSoTimeout(this.clientProperties.getDefaultSoTimeout());
    }
    this.connectionManager = cm;
}

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