Java Utililty Methods Object Save

List of utility methods to do Object Save

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Description

The list of methods to do Object Save are organized into topic(s).

Method

voidwriteObjectToFile(Object oObject, File destDir, String filename)
write Object To File 
File dest = new File(destDir, filename);
if (dest.exists())
    dest.delete();
OutputStream outStream = null;
try {
    outStream = new BufferedOutputStream(new FileOutputStream(dest));
    outStream.write((byte[]) oObject);
} finally {
...
voidwriteObjectToFile(String dirname, String filename, Object obj)
Write an object to a file. 
ObjectOutputStream oos = null;
try {
    oos = new ObjectOutputStream(
            new BufferedOutputStream(new FileOutputStream(new File(dirname, filename))));
    oos.writeObject(obj);
    oos.flush();
} catch (IOException e) {
    System.err.println("write: " + e);
...
booleanwriteObjectToFile(String fileName, Object obj)
write Object To File 
try {
    File f = new File(fileName);
    f.setWritable(true);
    FileOutputStream fout = new FileOutputStream(f);
    ObjectOutputStream oo = new ObjectOutputStream(fout);
    oo.writeObject(obj);
    fout.close();
    return true;
...
voidwriteObjectToFile(String filename, Serializable s)
write Object To File 
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(filename));
oos.writeObject(s);
oos.close();
voidwriteObjectToFile(String filename, T object)
write the object to a json file 
ObjectMapper mapper = new ObjectMapper();
File file = new File(filename);
try {
    mapper.writeValue(file, object);
} catch (IOException e) {
    System.err.println("error write object as json file: " + object + " for " + e);
voidwriteObjectToFile(String outputFileName, Object toWrite, boolean append)
Writes an object, using its 'toString' method, to the named file. 
Writer resultWriter;
try {
    resultWriter = new FileWriter(outputFileName, append);
} catch (IOException e) {
    throw new IllegalStateException("Unable to open the output file '" + outputFileName + "' for writing.",
            e);
try {
...
booleanwriteObjectToFile(T object, File fileHandle)
Write a serializable object to a file 
try {
    FileOutputStream fos = new FileOutputStream(fileHandle);
    ObjectOutputStream output = new ObjectOutputStream(fos);
    output.writeObject(object);
    output.close();
    fos.close();
} catch (FileNotFoundException e) {
    e.printStackTrace();
...
FilewriteObjectToFileNoExceptions(Object o, String filename)
Write object to a file with the specified name. 
File file = null;
ObjectOutputStream oos = null;
try {
    file = new File(filename);
    oos = new ObjectOutputStream(
            new BufferedOutputStream(new GZIPOutputStream(new FileOutputStream(file))));
    oos.writeObject(o);
    oos.close();
...