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:scouter.util.CacheTable.java

private int hash(Object key) {
    return (int) (key.hashCode()) & Integer.MAX_VALUE;
}

From source file:CompactHashSet.java

/**
 * INTERNAL: Rehashes the hashset to a bigger size.
 *///from  w w w.  jav a  2  s . co m
@SuppressWarnings("unchecked")
protected void rehash(int newCapacity) {
    int oldCapacity = objects.length;
    @SuppressWarnings("unchecked")
    E[] newObjects = (E[]) new Object[newCapacity];

    for (int ix = 0; ix < oldCapacity; ix++) {
        Object o = objects[ix];
        if (o == null || o == deletedObject)
            continue;

        int hash = o.hashCode();
        int index = (hash & 0x7FFFFFFF) % newCapacity;
        int offset = 1;

        // search for the object
        while (newObjects[index] != null) { // no need to test for
            // duplicates
            index = ((index + offset) & 0x7FFFFFFF) % newCapacity;
            offset = offset * 2 + 1;

            if (offset == -1)
                offset = 2;
        }

        newObjects[index] = (E) o;
    }

    objects = newObjects;
    freecells = objects.length - elements;
}

From source file:org.carrot2.util.simplexml.SimpleXmlWrappersTest.java

public void check(Object value) throws Exception {
    checkMap(Long.toString(value != null ? value.hashCode() : 0), value);
    checkList(value);/*w  w  w  .  ja  v a2s  .  c  o m*/
    checkSet(value);
}

From source file:org.structr.core.entity.SchemaProperty.java

private int addContentHash(final PropertyKey key, final int contentHash) {

    final Object value = getProperty(key);
    if (value != null) {

        return contentHash ^ value.hashCode();
    }//  w ww. j  ava 2  s. c  o m

    return contentHash;
}

From source file:org.dataconservancy.packaging.tool.model.dprofile.Property.java

@Override
public int hashCode() {
    // Special handling to ignore order of complex values.

    Object value_hash = value;

    if (isComplexValue() && hasValue()) {
        value_hash = new HashSet<>(getComplexValue());
    }/*from   ww  w . j  av  a 2 s  . c  o m*/

    final int prime = 31;
    int result = 1;
    result = prime * result + ((type == null) ? 0 : type.hashCode());
    result = prime * result + ((value_hash == null) ? 0 : value_hash.hashCode());
    return result;
}

From source file:org.apache.bookkeeper.util.OrderedSafeExecutor.java

ExecutorService chooseThread(Object orderingKey) {
    // skip hashcode generation in this special case
    if (threads.length == 1) {
        return threads[0];
    }//from  w w  w  . ja  v  a2  s . c o  m

    return threads[MathUtils.signSafeMod(orderingKey.hashCode(), threads.length)];

}

From source file:org.structr.schema.export.StructrMethodDefinition.java

@Override
public boolean equals(final Object other) {

    if (other instanceof StructrMethodDefinition) {

        return other.hashCode() == hashCode();
    }//from  www . ja  v  a  2s . co m

    return false;
}

From source file:com.github.adejanovski.cassandra.jdbc.CassandraStatement.java

public int compareTo(Object target) {
    if (this.equals(target))
        return 0;
    if (this.hashCode() < target.hashCode())
        return -1;
    return 1;/*from   w w  w.  ja  v a 2s .com*/
}

From source file:org.plasma.sdo.jdbc.service.GraphAssembler.java

/**
 * Creates a unique mappable key using the qualified type name
 * and all key property values from the given row.
 * @param type the type/* w  w  w. ja v a  2  s  .c  o m*/
 * @param row the data values
 * @return the key
 */
private int createHashKey(PlasmaType type, List<PropertyPair> row) {
    PropertyPair[] pairs = new PropertyPair[row.size()];
    row.toArray(pairs);
    Arrays.sort(pairs, this.nameComparator);
    int result = type.getQualifiedName().hashCode();

    int pks = 0;
    for (int i = 0; i < pairs.length; i++) {
        if (pairs[i].getProp().isKey(KeyType.primary)) {
            Object value = pairs[i].getValue();
            result = result ^ value.hashCode();
            pks++;
        }
    }
    if (pks == 0)
        throw new IllegalStateException(
                "cannot create hash key - no primary keys found for type, " + type.toString());
    return result;
}

From source file:org.apache.bookkeeper.util.OrderedSafeExecutor.java

private long getThreadID(Object orderingKey) {
    // skip hashcode generation in this special case
    if (threadIds.length == 1) {
        return threadIds[0];
    }/* w w w. j a  v  a 2  s.com*/

    return threadIds[MathUtils.signSafeMod(orderingKey.hashCode(), threadIds.length)];
}