Example usage for java.lang Object hashCode

List of usage examples for java.lang Object hashCode

  1. HOME
  2. Java
  3. java
  4. java.lang.*
  5. Object
  6. 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.redhat.rhn.domain.kickstart.KickstartPackage.java

/**
 * {@inheritDoc}//from  ww  w. j  av  a  2 s .  c  o  m
 */
public boolean equals(final Object other) {
    if (!(other instanceof KickstartPackage)) {
        return false;
    }
    KickstartPackage that = (KickstartPackage) other;
    return this.hashCode() == other.hashCode();
}

From source file:org.mozilla.mozstumbler.client.subactivities.DeveloperActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_developer);
    if (savedInstanceState == null) {
        FragmentManager fm = getSupportFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        ft.add(R.id.frame1, new KMLFragment());
        ft.add(R.id.frame2, new DeveloperOptions());
        ft.commit();/*  w  ww . j  a va 2s . c  o m*/
    }

    TextView tv = (TextView) findViewById(R.id.textViewDeveloperTitle);
    tv.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            final AlertDialog.Builder b = new AlertDialog.Builder(DeveloperActivity.this);
            final String[] menuList = { "ACRA Crash Test", "Fake no motion", "Fake motion", "Battery Low",
                    "Battery OK" };
            b.setTitle("Secret testing.. shhh.");
            b.setItems(menuList, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int item) {
                    switch (item) {
                    case 0:
                        Object a = null;
                        a.hashCode();
                        break;
                    case 1:
                        LocationChangeSensor.debugSendLocationUnchanging();
                        break;
                    case 2:
                        MotionSensor.debugMotionDetected();
                        break;
                    case 3:
                        int pct = ClientPrefs.getInstance(DeveloperActivity.this).getMinBatteryPercent();
                        BatteryCheckReceiver.debugSendBattery(pct - 1);
                        break;
                    case 4:
                        BatteryCheckReceiver.debugSendBattery(99);
                        break;
                    }
                }
            });
            b.create().show();
            return true;
        }
    });
}

From source file:edu.vt.middleware.ldap.SearchFilter.java

/**
 * Returns whether the supplied object contains the same data as this filter.
 * Delegates to {@link #hashCode()} implementation.
 *
 * @param  o  to compare for equality/* w  ww  .ja v  a 2s .c  o  m*/
 *
 * @return  equality result
 */
public boolean equals(final Object o) {
    if (o == null) {
        return false;
    }
    return o == this || (getClass() == o.getClass() && o.hashCode() == hashCode());
}

From source file:org.springframework.ldap.itest.ad.SchemaToJavaAdITest.java

@Test
public void verifySchemaToJavaOnAd() throws Exception {
    final String className = "Person";
    final String packageName = "org.springframework.ldap.odm.testclasses";

    File tempFile = File.createTempFile("test-odm-syntax-to-class-map", ".txt");
    FileUtils.copyInputStreamToFile(new ClassPathResource("/syntax-to-class-map.txt").getInputStream(),
            tempFile);/*from   w  ww  . jav a 2s. c om*/

    // Add classes dir to class path - needed for compilation
    System.setProperty("java.class.path",
            System.getProperty("java.class.path") + File.pathSeparator + "target/classes");

    String[] flags = new String[] { "--url", "ldaps://127.0.0.1:" + port, "--objectclasses",
            "organizationalperson", "--syntaxmap", tempFile.getAbsolutePath(), "--class", className,
            "--package", packageName, "--outputdir", tempDir, "--username", USER_DN, "--password", PASSWORD };

    // Generate the code using SchemaToJava
    SchemaToJava.main(flags);

    tempFile.delete();

    // Java 5 - we'll use the Java 6 Compiler API once we can drop support for Java 5.
    String javaDir = calculateOutputDirectory(tempDir, packageName);

    CompilerInterface.compile(javaDir, className + ".java");
    // Java 5

    // OK it compiles so lets load our new class
    URL[] urls = new URL[] { new File(tempDir).toURI().toURL() };
    URLClassLoader ucl = new URLClassLoader(urls, getClass().getClassLoader());
    Class<?> clazz = ucl.loadClass(packageName + "." + className);

    // Create our OdmManager using our new class
    OdmManagerImpl odmManager = new OdmManagerImpl(converterManager, contextSource);
    odmManager.addManagedClass(clazz);

    // And try reading from the directory using it
    DistinguishedName testDn = new DistinguishedName("cn=William Hartnell,cn=Users");
    Object fromDirectory = odmManager.read(clazz, testDn);

    LOG.debug(String.format("Read - %1$s", fromDirectory));

    // Check some returned values
    Method getDnMethod = clazz.getMethod("getDn");
    Object dn = getDnMethod.invoke(fromDirectory);
    assertThat(dn).isEqualTo(testDn);

    Method getCnIteratorMethod = clazz.getMethod("getCn");
    @SuppressWarnings("unchecked")
    String cn = (String) getCnIteratorMethod.invoke(fromDirectory);
    assertThat(cn).isEqualTo("William Hartnell");

    Method telephoneNumberIteratorMethod = clazz.getMethod("getTelephoneNumber");
    @SuppressWarnings("unchecked")
    String telephoneNumber = (String) telephoneNumberIteratorMethod.invoke(fromDirectory);
    assertThat(telephoneNumber).isEqualTo("1");

    // Reread and check whether equals and hashCode are at least sane
    Object fromDirectory2 = odmManager.read(clazz, testDn);
    assertThat(fromDirectory2).isEqualTo(fromDirectory);
    assertThat(fromDirectory2.hashCode()).isEqualTo(fromDirectory.hashCode());
}

From source file:com.alibaba.citrus.util.internal.apache.lang.HashCodeBuilderTests.java

public void testSuper() {
    Object obj = new Object();
    assertEquals(17 * 37 + 19 * 41 + obj.hashCode(), new HashCodeBuilder(17, 37)
            .appendSuper(new HashCodeBuilder(19, 41).append(obj).toHashCode()).toHashCode());
}

From source file:ObjectIntMap.java

/**
 * Updates the table to map 'key' to 'value'. Any existing mapping is overwritten.
 *
 * @param key mapping key [may not be null]
 *//*  ww  w  .j a v  a  2s  .  c  o m*/
public void remove(final Object key) {

    // index into the corresponding hash bucket:
    final int keyHash = key.hashCode();
    final int bucketIndex = (keyHash & 0x7FFFFFFF) % m_buckets.length;

    // traverse the singly-linked list of entries in the bucket:
    Entry[] buckets = m_buckets;
    for (Entry entry = buckets[bucketIndex], prev = entry; entry != null;) {
        final Entry next = entry.m_next;

        if ((keyHash == entry.m_key.hashCode()) || entry.m_key.equals(key)) {
            if (prev == entry)
                buckets[bucketIndex] = next;
            else
                prev.m_next = next;

            --m_size;
            break;
        }

        prev = entry;
        entry = next;
    }
}

From source file:org.gachette.spi.graphprovider.collection.CollectionGraphProvider.java

private int calculateEvaluatorKey(Object object, Method method, Object[] parameters) {
    int hash = 1;
    hash = hash * 17 + object.hashCode();
    hash = hash * 31 + method.hashCode();
    if (parameters != null) {
        hash = hash * 13 + Arrays.hashCode(parameters);
    }//from ww w .ja va2 s  .  c  o m
    return hash;
}

From source file:com.netflix.suro.sink.kafka.KafkaSinkV2.java

@Override
public void writeTo(MessageContainer message) {
    long key = msgId++;
    if (!keyTopicMap.isEmpty()) {
        try {//from   ww  w  .java 2 s . c  om
            Map<String, Object> msgMap = message.getEntity(new TypeReference<Map<String, Object>>() {
            });
            Object keyField = msgMap.get(keyTopicMap.get(message.getRoutingKey()));
            if (keyField != null) {
                key = keyField.hashCode();
            }
        } catch (Exception e) {
            QueuedSink.log.error("Exception on getting key field: " + e.getMessage());
        }
    }
    QueuedSink.log.trace("KafkaSink writeTo()");
    receivedCount.incrementAndGet();
    enqueue(new SuroKeyedMessage(key, message.getMessage()));
}

From source file:org.web4thejob.web.panel.base.AbstractPanel.java

@Override
public boolean equals(Object obj) {
    if (obj == null)
        return false;
    else if (this == obj)
        return true;
    else if (!Panel.class.isInstance(obj))
        return false;

    return hashCode() == obj.hashCode();

}

From source file:org.seansawyer.chaturanga.model.dom.DomainObjectTestCase.java

/**
 * Verify that the specified property, when set to the specified value, breaks the equality
 * between the original and modified objects' hash codes, and when the previous value is
 * restored, equality of hash codes is restored as well.
 * /*  w w w. j  av  a 2  s .  c o  m*/
 * @param original the original object
 * @param toCompare the object that will be changed for purposes of this test
 * @param property the property to modify
 * @param newValue the new value for the property being tested
 * @throws Exception
 */
protected void verifyPropertyOnHashCode(Object original, Object toCompare, String property, Object newValue)
        throws Exception {
    Object originalValue = PropertyUtils.getProperty(toCompare, property);
    BeanUtils.setProperty(toCompare, property, newValue);
    Assert.assertFalse(original.hashCode() == toCompare.hashCode());
    BeanUtils.setProperty(toCompare, property, originalValue);
    Assert.assertTrue(original.hashCode() == toCompare.hashCode());
}