Example usage for java.lang Object equals

Introduction

In this page you can find the example usage for java.lang Object equals.

Prototype

public boolean equals(Object obj)

Source Link

Document

Indicates whether some other object is "equal to" this one.

Usage

From source file:com.xidu.framework.common.util.ObjectUtils.java

/**
 * Determine if the given objects are equal, returning <code>true</code>
 * if both are <code>null</code> or <code>false</code> if only one is
 * <code>null</code>.//  w w  w  .j a v  a 2  s  . co m
 * <p>
 * Compares arrays with <code>Arrays.equals</code>, performing an
 * equality check based on the array elements rather than the array
 * reference.
 * 
 * @param o1
 *            first Object to compare
 * @param o2
 *            second Object to compare
 * @return whether the given objects are equal
 * @see java.util.Arrays#equals
 */
public static boolean nullSafeEquals(Object o1, Object o2) {

    if (o1 == null || o2 == null) {
        return false;
    }
    if (o1.equals(o2)) {
        return true;
    }
    if (o1 instanceof Object[] && o2 instanceof Object[]) {
        return Arrays.equals((Object[]) o1, (Object[]) o2);
    }
    if (o1 instanceof boolean[] && o2 instanceof boolean[]) {
        return Arrays.equals((boolean[]) o1, (boolean[]) o2);
    }
    if (o1 instanceof byte[] && o2 instanceof byte[]) {
        return Arrays.equals((byte[]) o1, (byte[]) o2);
    }
    if (o1 instanceof char[] && o2 instanceof char[]) {
        return Arrays.equals((char[]) o1, (char[]) o2);
    }
    if (o1 instanceof double[] && o2 instanceof double[]) {
        return Arrays.equals((double[]) o1, (double[]) o2);
    }
    if (o1 instanceof float[] && o2 instanceof float[]) {
        return Arrays.equals((float[]) o1, (float[]) o2);
    }
    if (o1 instanceof int[] && o2 instanceof int[]) {
        return Arrays.equals((int[]) o1, (int[]) o2);
    }
    if (o1 instanceof long[] && o2 instanceof long[]) {
        return Arrays.equals((long[]) o1, (long[]) o2);
    }
    if (o1 instanceof short[] && o2 instanceof short[]) {
        return Arrays.equals((short[]) o1, (short[]) o2);
    }
    return false;
}

From source file:com.hazelcast.config.ConfigCompatibilityChecker.java

private static boolean nullSafeEqual(Object a, Object b) {
    return (a == b) || (a != null && a.equals(b));
}

From source file:org.opentides.util.CrudUtil.java

/**
 * Returns the list of fields that have difference values or updated.
 * //w  w w.  ja v a2s  .com
 * @param oldObject
 * @param newObject
 * @return
 */
public static List<String> getUpdatedFields(BaseEntity oldObject, BaseEntity newObject) {
    List<String> fields = CacheUtil.getPersistentFields(oldObject);
    List<String> updatedFields = new ArrayList<String>();
    for (String field : fields) {
        Object oldValue = retrieveNullableObjectValue(oldObject, field);
        Object newValue = retrieveNullableObjectValue(newObject, field);
        oldValue = normalizeValue(oldValue);
        newValue = normalizeValue(newValue);
        if (!oldValue.equals(newValue)) {
            updatedFields.add(field);
        }
    }
    return updatedFields;
}

From source file:org.springsource.ide.eclipse.commons.core.SpringCoreUtils.java

private static void scheduleBuildInBackground(final IProject project, ISchedulingRule rule,
        final Object[] jobFamilies, final String builderID) {
    Job job = new Job("Building workspace") {

        @Override//www .  j  a  v a 2 s .  c  o m
        public boolean belongsTo(Object family) {
            if (jobFamilies == null || family == null) {
                return false;
            }
            for (Object jobFamilie : jobFamilies) {
                if (family.equals(jobFamilie)) {
                    return true;
                }
            }
            return false;
        }

        @Override
        public IStatus run(IProgressMonitor monitor) {
            try {
                if (builderID != null) {
                    project.build(IncrementalProjectBuilder.FULL_BUILD, builderID, null, monitor);
                } else {
                    project.build(IncrementalProjectBuilder.FULL_BUILD, monitor);
                }
                return Status.OK_STATUS;
            } catch (CoreException e) {
                return new Status(Status.ERROR, CorePlugin.PLUGIN_ID, 1,
                        "Error during build of project [" + project.getName() + "]", e);
            }
        }
    };
    if (rule != null) {
        job.setRule(rule);
    }
    job.setPriority(Job.BUILD);
    job.schedule();
}

From source file:cn.remex.core.util.ObjectUtils.java

/**
 * Determine if the given objects are equal, returning <code>true</code>
 * if both are <code>null</code> or <code>false</code> if only one is
 * <code>null</code>.// w  w w  .  j  av  a 2  s .c o m
 * <p>Compares arrays with <code>Arrays.equals</code>, performing an equality
 * check based on the array elements rather than the array reference.
 * @param o1 first Object to compare
 * @param o2 second Object to compare
 * @return whether the given objects are equal
 * @see java.util.Arrays#equals
 */
public static boolean nullSafeEquals(final Object o1, final Object o2) {
    if (o1 == o2) {
        return true;
    }
    if (o1 == null || o2 == null) {
        return false;
    }
    if (o1.equals(o2)) {
        return true;
    }
    if (o1.getClass().isArray() && o2.getClass().isArray()) {
        if (o1 instanceof Object[] && o2 instanceof Object[]) {
            return Arrays.equals((Object[]) o1, (Object[]) o2);
        }
        if (o1 instanceof boolean[] && o2 instanceof boolean[]) {
            return Arrays.equals((boolean[]) o1, (boolean[]) o2);
        }
        if (o1 instanceof byte[] && o2 instanceof byte[]) {
            return Arrays.equals((byte[]) o1, (byte[]) o2);
        }
        if (o1 instanceof char[] && o2 instanceof char[]) {
            return Arrays.equals((char[]) o1, (char[]) o2);
        }
        if (o1 instanceof double[] && o2 instanceof double[]) {
            return Arrays.equals((double[]) o1, (double[]) o2);
        }
        if (o1 instanceof float[] && o2 instanceof float[]) {
            return Arrays.equals((float[]) o1, (float[]) o2);
        }
        if (o1 instanceof int[] && o2 instanceof int[]) {
            return Arrays.equals((int[]) o1, (int[]) o2);
        }
        if (o1 instanceof long[] && o2 instanceof long[]) {
            return Arrays.equals((long[]) o1, (long[]) o2);
        }
        if (o1 instanceof short[] && o2 instanceof short[]) {
            return Arrays.equals((short[]) o1, (short[]) o2);
        }
    }
    return false;
}

From source file:Main.java

/**
 * Checks if both the Object arguments are equal (including if they are null)
 *//*  w w w  .j a v  a  2s.c  om*/

public static boolean areNullorEqual(Object obj1, Object obj2, boolean ignoreWhitespace, boolean ignoreCase)

{

    // if both are null, they are equal

    if ((obj1 == null) && (obj2 == null))

        return true;

    // if either one of them is null, they are not equal

    if ((obj1 == null) || (obj2 == null))

        return false;

    // if they are String type

    if ((obj1 instanceof String) && (obj2 instanceof String))

    {

        if (ignoreWhitespace)

        {

            if (ignoreCase)

                return ((String) obj1).trim().equalsIgnoreCase(((String) obj2).trim());

            else

                return ((String) obj1).trim().equals(((String) obj2).trim());

        } else

        {

            if (ignoreCase)

                return ((String) obj1).equalsIgnoreCase((String) obj2);

            else

                return obj1.equals(obj2);

        }

    }

    return (obj1.equals(obj2));

}

From source file:com.aw.support.collection.ListUtils.java

public static <E> List<E> getSubList(Collection<E> list, final String propertyName,
        final Object propertyValue) {
    return getSubList(list, new UnaryPredicate() {
        @Override/*from  w  ww . j  a  va  2  s  .  c o m*/
        public boolean test(Object o) {
            BeanWrapper wrapper = new BeanWrapperImpl(o);
            return propertyValue.equals(wrapper.getPropertyValue(propertyName));
        }
    });
}

From source file:simulation.AureoZauleckAnsLab2.java

public static ArrayList<ArrayList> Stratified(ArrayList ungrouped) {
    ArrayList<ArrayList> grouped = new ArrayList<>();
    boolean[] isVisited = new boolean[ungrouped.size()];

    for (int i = 0; i < ungrouped.size(); i++) {
        if (!(isVisited[i])) {
            Object current = ungrouped.get(i);
            grouped.add(new ArrayList());
            ArrayList currList = grouped.get(grouped.size() - 1);
            currList.add(current);//from   w ww  .ja va2 s  .  c  o  m

            for (int j = i + 1; j < ungrouped.size(); j++) {
                Object next = ungrouped.get(j);
                if (next.equals(current)) {
                    isVisited[j] = true;
                    currList.add(next);
                }
            }
        }
    }
    return grouped;
}

From source file:Main.java

public void actionPerformed(ActionEvent evt) {
    JComboBox cb = (JComboBox) evt.getSource();
    Object newItem = cb.getSelectedItem();

    boolean same = newItem.equals(oldItem);
    oldItem = newItem;//from   ww  w  .j a va2s  .c  o  m

    if ("comboBoxEdited".equals(evt.getActionCommand())) {
        // User has typed in a string; only possible with an editable combobox
    } else if ("comboBoxChanged".equals(evt.getActionCommand())) {
        // User has selected an item; it may be the same item
    }
}

From source file:com.qmetry.qaf.automation.ui.selenium.AssertionService.java

/**
 * Compares two objects, but handles "regexp:" strings like HTML Selenese
 * //from  w  ww.  j av  a  2s  .  c om
 * @see #seleniumEquals(String, String)
 * @return true if actual matches the expectedPattern, or false otherwise
 */
public static boolean seleniumEquals(Object expected, Object actual) {
    if ((expected instanceof String) && (actual instanceof String)) {
        return seleniumEquals((String) expected, (String) actual);
    }
    return expected.equals(actual);
}