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:org.apache.tinkerpop.gremlin.process.traversal.step.util.Parameters.java

public int hashCode() {
    int result = 1;
    for (final Map.Entry<Object, List<Object>> entry : this.parameters.entrySet()) {
        result ^= entry.getKey().hashCode();
        for (final Object value : entry.getValue()) {
            result ^= Integer.rotateLeft(value.hashCode(), entry.getKey().hashCode());
        }//from  w ww.  jav  a2  s.  c  om
    }
    return result;
}

From source file:ConcurrentReaderHashMap.java

/**
 * Return hash code for Object x. Since we are using power-of-two
 * tables, it is worth the effort to improve hashcode via
 * the same multiplicative scheme as used in IdentityHashMap.
 *///from  w  w w .j  a  va 2s  . c  om
private static int hash(Object x) {
    int h = x.hashCode();
    // Multiply by 127 (quickly, via shifts), and mix in some high
    // bits to help guard against bunching of codes that are
    // consecutive or equally spaced.
    return ((h << 7) - h + (h >>> 9) + (h >>> 17));
}

From source file:Main.java

public static int deepHashCode(Object obj) {
    Set visited = new HashSet();
    LinkedList<Object> stack = new LinkedList<Object>();
    stack.addFirst(obj);/*from  w ww . ja  v  a2s  .c  o  m*/
    int hash = 0;

    while (!stack.isEmpty()) {
        obj = stack.removeFirst();
        if (obj == null || visited.contains(obj)) {
            continue;
        }

        visited.add(obj);

        if (obj.getClass().isArray()) {
            int len = Array.getLength(obj);
            for (int i = 0; i < len; i++) {
                stack.addFirst(Array.get(obj, i));
            }
            continue;
        }

        if (obj instanceof Collection) {
            stack.addAll(0, (Collection) obj);
            continue;
        }

        if (obj instanceof Map) {
            stack.addAll(0, ((Map) obj).keySet());
            stack.addAll(0, ((Map) obj).values());
            continue;
        }

        if (hasCustomHashCode(obj.getClass())) {
            hash += obj.hashCode();
            continue;
        }

        Collection<Field> fields = getDeepDeclaredFields(obj.getClass());
        for (Field field : fields) {
            try {
                stack.addFirst(field.get(obj));
            } catch (Exception ignored) {
            }
        }
    }
    return hash;
}

From source file:org.springframework.nanotrader.account.Account.java

public boolean equals(Object o) {
    if (o == null) {
        return false;
    }//from  ww w.  j  a va2  s  .  co m

    if (!(o instanceof Account)) {
        return false;
    }
    return o.hashCode() == hashCode();
}

From source file:IntMap.java

/**
 * Puts a new value in the property table with the appropriate flags
 *//*from ww  w .j a  v  a  2s. co  m*/
public int get(Object key) {
    int mask = _mask;
    int hash = key.hashCode() % mask & mask;

    Object[] keys = _keys;

    while (true) {
        Object mapKey = keys[hash];

        if (mapKey == null)
            return NULL;
        else if (mapKey == key || mapKey.equals(key))
            return _values[hash];

        hash = (hash + 1) % mask;
    }
}

From source file:com.vip.saturn.job.console.domain.RegistryCenterConfiguration.java

public int hashCode() {
    int PRIME = 59;
    int result = 1;
    Object $name = getName();
    result = result * 59 + ($name == null ? 43 : $name.hashCode());
    Object $namespace = getNamespace();
    result = result * 59 + ($namespace == null ? 43 : $namespace.hashCode());
    Object $sysAdmin = getSysAdmin();
    result = result * 59 + ($sysAdmin == null ? 43 : $sysAdmin.hashCode());
    Object $techAdmin = getTechAdmin();
    result = result * 59 + ($techAdmin == null ? 43 : $techAdmin.hashCode());
    Object $degree = getDegree();
    return result * 59 + ($degree == null ? 43 : $degree.hashCode());
}

From source file:IntMap.java

/**
 * Deletes the entry.  Returns true if successful.
 *///from  www  . ja  v  a  2s. c o m
public int remove(Object key) {
    int mask = _mask;
    int hash = key.hashCode() % mask & mask;

    while (true) {
        Object mapKey = _keys[hash];

        if (mapKey == null)
            return NULL;
        else if (mapKey == key) {
            _keys[hash] = DELETED;

            _size--;

            return _values[hash];
        }

        hash = (hash + 1) % mask;
    }
}

From source file:grails.plugin.cache.CustomCacheKeyGenerator.java

public Object generate(Object target, Method method, Object... params) {
    Class<?> objClass = AopProxyUtils.ultimateTargetClass(target);

    return new CacheKey(objClass.getName().intern(), method.toString().intern(), target.hashCode(),
            innerKeyGenerator.generate(target, method, params));
}

From source file:com.farmafene.aurius.impl.DatoRegistroTypeBlob.java

/**
 * {@inheritDoc}/*from   w ww .j  a  v  a  2s .  c om*/
 * 
 * @see java.lang.Object#equals(java.lang.Object)
 * @since 1.0.0
 */
@Override
public boolean equals(Object obj) {
    boolean iguales = false;
    if (obj instanceof DatoRegistroTypeBlob) {
        iguales = this.hashCode() == obj.hashCode();
    }
    return iguales;
}

From source file:org.web4thejob.setting.DefaultSetting.java

@Override
public boolean equals(Object obj) {
    if (this == obj)
        return true;
    if (obj == null)
        return false;
    return obj instanceof Setting && hashCode() == obj.hashCode();

}