本文整理了Java中io.objectbox.query.Query类的一些代码示例，展示了Query类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Query类的具体详情如下：
包路径：io.objectbox.query.Query
类名称：Query

Query介绍

[英]A repeatable query returning entities.
[中]返回实体的可重复查询。

代码示例

代码示例来源：origin: objectbox/objectbox-java

@Override
  public void run() {
    List<T> result = query.find();
    observer.onData(result);
  }
});

代码示例来源：origin: objectbox/objectbox-java

/**
 * Convenience for {@link #subscribe()} with a subsequent call to
 * {@link SubscriptionBuilder#dataSubscriptionList(DataSubscriptionList)}.
 *
 * @param dataSubscriptionList the resulting {@link io.objectbox.reactive.DataSubscription} will be added to it
 */
public SubscriptionBuilder<List<T>> subscribe(DataSubscriptionList dataSubscriptionList) {
  SubscriptionBuilder<List<T>> subscriptionBuilder = subscribe();
  subscriptionBuilder.dataSubscriptionList(dataSubscriptionList);
  return subscriptionBuilder;
}

代码示例来源：origin: objectbox/objectbox-java

@Override
  public void run() {
    query.setParameter(EntityLongIndex_.indexedLong, initialValue);
    EntityLongIndex unique = query.findUnique();
    assertNull(unique);
    latchRead1.countDown();
    System.out.println("BEFORE put: " + box.getReaderDebugInfo());
    System.out.println("count before: " + box.count());
    try {
      latchPut.await();
    } catch (InterruptedException e) {
      e.printStackTrace();
      throw new RuntimeException(e);
    }
    System.out.println("AFTER put: " + box.getReaderDebugInfo());
    System.out.println("count after: " + box.count());
    query.setParameter(EntityLongIndex_.indexedLong, initialValue);
    results[0] = query.findUnique();
    results[1] = box.get(1);
    results[2] = query.findUnique();
    query.setParameter(EntityLongIndex_.indexedLong, 0);
    results[3] = query.findUnique();
    latchRead2.countDown();
  }
}.start();

代码示例来源：origin: objectbox/objectbox-java

/**
 * Find all Objects matching the query without actually loading the Objects. See @{@link LazyList} for details.
 */
public LazyList<T> findLazy() {
  ensureNoFilterNoComparator();
  return new LazyList<>(box, findIds(), false);
}

代码示例来源：origin: objectbox/objectbox-java

@Override
  public void run() {
    LazyList<T> lazyList = new LazyList<>(box, findIds(), false);
    int size = lazyList.size();
    for (int i = 0; i < size; i++) {
      T entity = lazyList.get(i);
      if (entity == null) {
        throw new IllegalStateException("Internal error: data object was null");
      }
      if (filter != null) {
        if (!filter.keep(entity)) {
          continue;
        }
      }
      if (eagerRelations != null) {
        resolveEagerRelationForNonNullEagerRelations(entity, i);
      }
      try {
        consumer.accept(entity);
      } catch (BreakForEach breakForEach) {
        break;
      }
    }
  }
});

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testEagerToMany_NoResult() {
  Query<Customer> query = customerBox.query().eager(Customer_.orders).build();
  query.find();
  query.findFirst();
  query.forEach(new QueryConsumer<Customer>() {
    @Override
    public void accept(Customer data) {
    }
  });
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testStringGreater() {
  putTestEntitiesStrings();
  putTestEntity("FOO", 100);
  Query<TestEntity> query = box.query().greater(simpleString, "banana juice").order(simpleString).build();
  List<TestEntity> entities = query.find();
  assertEquals(4, entities.size());
  assertEquals("banana milk shake", entities.get(0).getSimpleString());
  assertEquals("bar", entities.get(1).getSimpleString());
  assertEquals("FOO", entities.get(2).getSimpleString());
  assertEquals("foo bar", entities.get(3).getSimpleString());
  query.setParameter(simpleString, "FO");
  entities = query.find();
  assertEquals(2, entities.size());
  assertEquals("FOO", entities.get(0).getSimpleString());
  assertEquals("foo bar", entities.get(1).getSimpleString());
  // Case sensitive
  query = box.query().greater(simpleString, "banana", StringOrder.CASE_SENSITIVE).order(simpleString).build();
  entities = query.find();
  assertEquals(3, entities.size());
  assertEquals("banana milk shake", entities.get(0).getSimpleString());
  assertEquals("bar", entities.get(1).getSimpleString());
  assertEquals("foo bar", entities.get(2).getSimpleString());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testSetParameter2Floats() {
  putTestEntitiesScalars();
  Query<TestEntity> query = box.query().between(simpleFloat, 400.15, 400.75).parameterAlias("foo").build();
  assertEquals(6, query.count());
  query.setParameters(simpleFloat, 400.65, 400.85);
  List<TestEntity> entities = query.find();
  assertEquals(2, entities.size());
  assertEquals(8, entities.get(0).getId());
  assertEquals(9, entities.get(1).getId());
  query.setParameters("foo", 400.45, 400.55);
  assertEquals(6, query.findUnique().getId());
}

代码示例来源：origin: objectbox/objectbox-java

List<Order> orders = orderBox.query().eager(Order_.customer).build().find();
assertEquals(2, orders.size());
assertTrue(orders.get(0).customer__toOne.isResolved());
orders = orderBox.query().eager(Order_.customer).build().find(0, 10);
assertEquals(2, orders.size());
assertTrue(orders.get(0).customer__toOne.isResolved());
orders = orderBox.query().eager(1, Order_.customer).build().find();
assertEquals(2, orders.size());
assertTrue(orders.get(0).customer__toOne.isResolved());
customerBox.query().eager(1, Customer_.orders).build().forEach(new QueryConsumer<Customer>() {
  @Override
  public void accept(Customer data) {
Order order = orderBox.query().eager(Order_.customer).build().findFirst();
assertTrue(order.customer__toOne.isResolved());
order = orderBox.query().eager(Order_.customer).build().findUnique();
assertTrue(order.customer__toOne.isResolved());

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testScalarEqual() {
  putTestEntitiesScalars();
  Query<TestEntity> query = box.query().equal(simpleInt, 2007).build();
  assertEquals(1, query.count());
  assertEquals(8, query.findFirst().getId());
  assertEquals(8, query.findUnique().getId());
  List<TestEntity> all = query.find();
  assertEquals(1, all.size());
  assertEquals(8, all.get(0).getId());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testStringLess() {
  putTestEntitiesStrings();
  putTestEntity("BaNaNa Split", 100);
  Query<TestEntity> query = box.query().less(simpleString, "banana juice").order(simpleString).build();
  List<TestEntity> entities = query.find();
  assertEquals(2, entities.size());
  assertEquals("apple", entities.get(0).getSimpleString());
  assertEquals("banana", entities.get(1).getSimpleString());
  query.setParameter(simpleString, "BANANA MZ");
  entities = query.find();
  assertEquals(3, entities.size());
  assertEquals("apple", entities.get(0).getSimpleString());
  assertEquals("banana", entities.get(1).getSimpleString());
  assertEquals("banana milk shake", entities.get(2).getSimpleString());
  // Case sensitive
  query = box.query().less(simpleString, "BANANA", StringOrder.CASE_SENSITIVE).order(simpleString).build();
  assertEquals(0, query.count());
  query.setParameter(simpleString, "banana a");
  entities = query.find();
  assertEquals(3, entities.size());
  assertEquals("apple", entities.get(0).getSimpleString());
  assertEquals("banana", entities.get(1).getSimpleString());
  assertEquals("BaNaNa Split", entities.get(2).getSimpleString());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testNoConditions() {
  List<TestEntity> entities = putTestEntitiesScalars();
  Query<TestEntity> query = box.query().build();
  List<TestEntity> all = query.find();
  assertEquals(entities.size(), all.size());
  assertEquals(entities.size(), query.count());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testObserver() {
  int[] valuesInt = {2003, 2007, 2002};
  Query<TestEntity> query = box.query().in(simpleInt, valuesInt).build();
  assertEquals(0, query.count());
  query.subscribe().observer(this);
  assertLatchCountedDown(latch, 5);
  assertEquals(1, receivedChanges.size());
  assertEquals(0, receivedChanges.get(0).size());
  receivedChanges.clear();
  latch = new CountDownLatch(1);
  putTestEntitiesScalars();
  assertLatchCountedDown(latch, 5);
  assertEquals(1, receivedChanges.size());
  assertEquals(3, receivedChanges.get(0).size());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testStringIn() {
  putTestEntitiesStrings();
  putTestEntity("BAR", 100);
  String[] values = {"bar", "foo bar"};
  Query<TestEntity> query = box.query().in(simpleString, values).order(simpleString, OrderFlags.CASE_SENSITIVE)
      .build();
  List<TestEntity> entities = query.find();
  assertEquals(3, entities.size());
  assertEquals("BAR", entities.get(0).getSimpleString());
  assertEquals("bar", entities.get(1).getSimpleString());
  assertEquals("foo bar", entities.get(2).getSimpleString());
  String[] values2 = {"bar"};
  query.setParameters(simpleString, values2);
  entities = query.find();
  assertEquals(2, entities.size());
  assertEquals("BAR", entities.get(0).getSimpleString());
  assertEquals("bar", entities.get(1).getSimpleString());
  // Case sensitive
  query = box.query().in(simpleString, values, StringOrder.CASE_SENSITIVE).order(simpleString).build();
  entities = query.find();
  assertEquals(2, entities.size());
  assertEquals("bar", entities.get(0).getSimpleString());
  assertEquals("foo bar", entities.get(1).getSimpleString());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testBooleanEqual() {
  putTestEntitiesScalars();
  Query<TestEntity> query = box.query().equal(simpleBoolean, true).build();
  assertEquals(5, query.count());
  assertEquals(1, query.findFirst().getId());
  query.setParameter(simpleBoolean, false);
  assertEquals(5, query.count());
  assertEquals(2, query.findFirst().getId());
}

代码示例来源：origin: objectbox/objectbox-java

/**
 * Sets a parameter previously given to the {@link QueryBuilder} to a new value.
 */
public Query<T> setParameter(Property property, boolean value) {
  return setParameter(property, value ? 1 : 0);
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testFailedUnique_exceptionListener() {
  final Exception[] exs = {null};
  DbExceptionListener exceptionListener = new DbExceptionListener() {
    @Override
    public void onDbException(Exception e) {
      exs[0] = e;
    }
  };
  putTestEntitiesStrings();
  Query<TestEntity> query = box.query().build();
  store.setDbExceptionListener(exceptionListener);
  try {
    query.findUnique();
    fail("Should have thrown");
  } catch (NonUniqueResultException e) {
    assertSame(e, exs[0]);
  }
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testLongIn() {
  putTestEntitiesScalars();
  long[] valuesLong = {1, 1, 2, 3, 3003, 3007, 3002, -1};
  Query<TestEntity> query = box.query().in(simpleLong, valuesLong).parameterAlias("long").build();
  assertEquals(3, query.count());
  long[] valuesLong2 = {3003};
  query.setParameters(simpleLong, valuesLong2);
  assertEquals(1, query.count());
  long[] valuesLong3 = {3003, 3007};
  query.setParameters("long", valuesLong3);
  assertEquals(2, query.count());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testSetParameterFloat() {
  putTestEntitiesScalars();
  Query<TestEntity> query = box.query().greater(simpleFloat, 400.65).parameterAlias("foo").build();
  assertEquals(3, query.count());
  query.setParameter(simpleFloat, 400.75);
  assertEquals(2, query.count());
  query.setParameter("foo", 400.85);
  assertEquals(1, query.count());
}

代码示例来源：origin: objectbox/objectbox-java

@Test
public void testFindInt() {
  Query<TestEntity> query = box.query().greater(simpleLong, 1002).build();
  assertNull(query.property(simpleInt).findInt());
  assertNull(query.property(simpleInt).unique().findInt());
  putTestEntities(5);
  assertEquals(3, (int) query.property(simpleInt).findInt());
  query = box.query().greater(simpleLong, 1004).build();
  assertEquals(5, (int) query.property(simpleInt).distinct().unique().findInt());
  TestEntityCursor.INT_NULL_HACK = true;
  try {
    putTestEntity(null, 6);
  } finally {
    TestEntityCursor.INT_NULL_HACK = false;
  }
  query.setParameter(simpleLong, 1005);
  assertEquals(-99, (int) query.property(simpleInt).nullValue(-99).unique().findInt());
}