Example usage for java.lang Object hashCode

Introduction

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

Prototype

@HotSpotIntrinsicCandidate
public native int hashCode();

Source Link

Document

Returns a hash code value for the object.

Usage

From source file:com.liferay.util.portlet.PortletRequestUtil.java

private static boolean _isValidAttributeValue(Object obj) {
    if (obj == null) {
        return false;
    } else if (obj instanceof Collection<?>) {
        Collection<?> col = (Collection<?>) obj;

        if (col.size() == 0) {
            return false;
        } else {//  w  w  w  .  ja  v a  2 s  .  c om
            return true;
        }
    } else if (obj instanceof Map<?, ?>) {
        Map<?, ?> map = (Map<?, ?>) obj;

        if (map.size() == 0) {
            return false;
        } else {
            return true;
        }
    } else {
        String objString = String.valueOf(obj);

        if (Validator.isNull(objString)) {
            return false;
        }

        String hashCode = StringPool.AT.concat(StringUtil.toHexString(obj.hashCode()));

        if (objString.endsWith(hashCode)) {
            return false;
        }

        return true;
    }
}

From source file:com.qrmedia.commons.collections.Pair.java

private int hashCode(Object object) {
    return ((object != null) ? object.hashCode() : 0);
}

From source file:com.thinkbiganalytics.jpa.TruncateStringUserType.java

@Override
public int hashCode(Object o) throws HibernateException {
    assert (o != null);
    return o.hashCode();
}

From source file:edu.vt.middleware.ldap.bean.AbstractLdapBean.java

/**
 * Returns whether the supplied <code>Object</code> contains the same data as
 * this bean./* w  ww  .  j  av a  2s .  c  o  m*/
 *
 * @param  o  <code>Object</code>
 *
 * @return  <code>boolean</code>
 */
public boolean equals(final Object o) {
    if (o == null) {
        return false;
    }
    return o == this || (this.getClass() == o.getClass() && o.hashCode() == this.hashCode());
}

From source file:HashCode.java

/**
 * Compute a combined hash code from the supplied objects using the supplied seed.
 * @param seed a value upon which the hash code will be based; may be 0
 * @param objects the objects that should be used to compute the hash code
 * @return the hash code/*from   ww  w. j  ava  2 s . c  o m*/
 */
protected static int compute(int seed, Object... objects) {
    if (objects == null || objects.length == 0) {
        return seed * HashCode.PRIME;
    }
    // Compute the hash code for all of the objects ...
    int hc = seed;
    for (Object object : objects) {
        hc = HashCode.PRIME * hc;
        if (object instanceof byte[]) {
            hc += Arrays.hashCode((byte[]) object);
        } else if (object instanceof boolean[]) {
            hc += Arrays.hashCode((boolean[]) object);
        } else if (object instanceof short[]) {
            hc += Arrays.hashCode((short[]) object);
        } else if (object instanceof int[]) {
            hc += Arrays.hashCode((int[]) object);
        } else if (object instanceof long[]) {
            hc += Arrays.hashCode((long[]) object);
        } else if (object instanceof float[]) {
            hc += Arrays.hashCode((float[]) object);
        } else if (object instanceof double[]) {
            hc += Arrays.hashCode((double[]) object);
        } else if (object instanceof char[]) {
            hc += Arrays.hashCode((char[]) object);
        } else if (object instanceof Object[]) {
            hc += Arrays.hashCode((Object[]) object);
        } else if (object != null) {
            hc += object.hashCode();
        }
    }
    return hc;
}

From source file:ar.com.zauber.commons.repository.utils.URIUserType.java

/**
 * @see usertype.UserType#hashCode(Object)
 * @throws HibernateException//from   w  w w  . j a v a2s. c o m
 *             on error
 */
public final int hashCode(final Object x) throws HibernateException {
    return x.hashCode();
}

From source file:org.apache.shindig.social.opensocial.spi.CollectionOptions.java

private int getHashCode(Object o) {
    return o == null ? 0 : o.hashCode();
}

From source file:org.projectbuendia.client.utils.Colorizer.java

/** Gets an ARGB value for the specified object. */
public int getColorArgb(Object o) {
    return getColorArgb(mix(o == null ? 0 : o.hashCode()));
}

From source file:com.l2jfree.sql.L2DBEntity.java

@Override
public int hashCode() {
    final Object pk = getPrimaryKey();

    if (pk == null)
        return 0;

    return L2System.hash(pk.hashCode());
}

From source file:org.springframework.nanotrader.order.Order.java

public boolean equals(Object o) {
    return o != null && o instanceof Order && o.hashCode() == hashCode();
}