Example usage for java.lang.reflect Field set

Introduction

In this page you can find the example usage for java.lang.reflect Field set.

Prototype

@CallerSensitive
@ForceInline 
public void set(Object obj, Object value) throws IllegalArgumentException, IllegalAccessException

Source Link

Document

Sets the field represented by this Field object on the specified object argument to the specified new value.

Usage

From source file:Main.java

public static <T> void setFinalField(Class<T> clazz, T object, String fieldName, Object value) {
    try {//from w w w.j  a  v  a 2 s  .  co m
        Field headerField = clazz.getDeclaredField(fieldName);
        headerField.setAccessible(true);
        headerField.set(object, value);
    } catch (NoSuchFieldException e) {
        throw new RuntimeException(e);
    } catch (IllegalAccessException e2) {
        throw new RuntimeException(e2);
    }
}

From source file:Main.java

public static void setMember(Object object, String memberName, Object value)
        throws IllegalAccessException, NoSuchFieldException {
    Field declaredField = getField(object.getClass(), memberName);
    declaredField.setAccessible(true);/* w  ww  . j a va 2  s. c o  m*/
    declaredField.set(object, value);
}

From source file:eu.riscoss.RemoteRiskAnalyserMain.java

static void loadJSmile() throws Exception {
    File dir = new File(FileUtils.getTempDirectory(), "jnativelibs-" + RandomStringUtils.randomAlphabetic(30));
    if (!dir.mkdir()) {
        throw new Exception("failed to make dir");
    }//from   ww  w .jav a  2  s. co m
    File jsmile = new File(dir, "libjsmile.so");
    URL jsmURL = Thread.currentThread().getContextClassLoader().getResource("libjsmile.so");
    FileUtils.copyURLToFile(jsmURL, jsmile);
    System.setProperty("java.library.path",
            System.getProperty("java.library.path") + ":" + dir.getAbsolutePath());

    // flush the library paths
    Field sysPathsField = ClassLoader.class.getDeclaredField("sys_paths");
    sysPathsField.setAccessible(true);
    sysPathsField.set(null, null);

    // Check that it works...
    System.loadLibrary("jsmile");

    dir.deleteOnExit();
    jsmile.deleteOnExit();
}

From source file:Main.java

/**
 * Copy fields from parent object to child object.
 *
 * @param parent parent object/*  ww  w  . jav a 2 s.c  o  m*/
 * @param child child object
 * @param <T> child class
 * @return filled child object
 */
public static <T> T shallowCopy(Object parent, T child) {
    try {
        List<Field> fields = new ArrayList<>();
        Class clazz = parent.getClass();
        do {
            fields.addAll(Arrays.asList(clazz.getDeclaredFields()));
        } while (!(clazz = clazz.getSuperclass()).equals(Object.class));

        for (Field field : fields) {
            field.setAccessible(true);
            field.set(child, field.get(parent));
        }

        return child;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

public static void autoMappingJsonToObject(JSONObject json, Object obj) {
    Field[] fields = obj.getClass().getFields();
    for (Field field : fields) {
        if (json.optString(field.getName()) != null) {
            try {
                field.set(obj, json.optString(field.getName()));
            } catch (Exception e) {
            }/*from   w ww.  j  a v a  2s  . c om*/
        }
    }
}

From source file:Main.java

public static void setProperty(Object paramObject1, String paramString, Object paramObject2) {
    try {//from   w  w  w  .  j  a  v a 2s. com
        Field localField = paramObject1.getClass().getDeclaredField(paramString);
        localField.setAccessible(true);
        localField.set(paramObject1, paramObject2);
    } catch (Exception var4) {
        ;
    }

}

From source file:Main.java

public static void objectCopy(Object from, Object to) throws Exception {

    if (from.getClass() != to.getClass()) {
        throw new IllegalArgumentException("[objectCopy]The left and right must be same class");
    }//www. j av a 2s .co  m
    Class<?> clz = from.getClass();
    Field[] fs = clz.getDeclaredFields();
    for (int i = 0; i < fs.length; i++) {
        Field field = fs[i];

        field.setAccessible(true);

        Object value = field.get(from);
        field.set(to, value);
    }
}

From source file:SampleSet.java

static void modifyWidth(Rectangle r, Integer widthParam) {
    Field widthField;
    Integer widthValue;/*from  w w  w. j  a  v a 2 s.  c o m*/
    Class c = r.getClass();
    try {
        widthField = c.getField("width");
        widthField.set(r, widthParam);
    } catch (NoSuchFieldException e) {
        System.out.println(e);
    } catch (IllegalAccessException e) {
        System.out.println(e);
    }
}

From source file:Main.java

/**set dialog dismiss or not*/
public static void setDialogDismiss(DialogInterface dialog, boolean dismiss) {
    try {/*from  w ww . j a v a2  s .c om*/
        Field field = dialog.getClass().getSuperclass().getDeclaredField("mShowing");
        field.setAccessible(true);
        field.set(dialog, dismiss);
        dialog.dismiss();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:nl.ctrlaltdev.harbinger.testutil.TestUtil.java

public static final void resetMockHttpSessionId() {
    try {//from w  w w.j  a va  2s. co  m
        Field nextId = MockHttpSession.class.getDeclaredField("nextId");
        nextId.setAccessible(true);
        nextId.set(null, Integer.valueOf(1));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}