本文整理了Java中com.yahoo.squidb.sql.Query.where方法的一些代码示例，展示了Query.where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.where方法的具体详情如下：
包路径：com.yahoo.squidb.sql.Query
类名称：Query
方法名：where

Query.where介绍

[英]Add a Criterion to the WHERE clause of this query. Multiple calls will combine all the criterions with AND.
[中]将条件添加到此查询的WHERE子句。多个调用将把所有标准与和结合起来。

代码示例

代码示例来源：origin: yahoo/squidb

protected <TYPE extends AbstractModel> SquidCursor<TYPE> fetchFirstItem(Class<TYPE> modelClass,
    Criterion criterion, Property<?>... properties) {
  return fetchFirstItem(modelClass, Query.select(properties).where(criterion));
}

代码示例来源：origin: yahoo/squidb

/**
 * Add a {@link Criterion} to the WHERE clause of this query. Multiple calls will combine all the criterions with
 * AND.
 *
 * @param criterion the Criterion to add to the WHERE clause
 * @return this Query object, to allow chaining method calls
 */
public Query where(Criterion criterion) {
  if (criterion == null) {
    return this;
  }
  if (immutable) {
    return fork().where(criterion);
  }
  if (criterions == null) {
    criterions = new ArrayList<>();
  }
  criterions.add(criterion);
  invalidateCompileCache();
  return this;
}

代码示例来源：origin: yahoo/squidb

public Query getTasksWithTagsQuery(Criterion filterBy) {
  if (filterBy == null) {
    return TASKS_WITH_TAGS;
  }
  // Since the query is frozen, this will create a clone with the given filter
  return TASKS_WITH_TAGS.where(filterBy);
}

代码示例来源：origin: yahoo/squidb

/**
 * Count the number of rows matching a given {@link Criterion}. Use null to count all rows.
 *
 * @param modelClass the model class corresponding to the table
 * @param criterion the criterion to match
 * @return the number of rows matching the given criterion
 */
public int count(Class<? extends AbstractModel> modelClass, Criterion criterion) {
  Property.IntegerProperty countProperty = Property.IntegerProperty.countProperty();
  Query query = Query.select(countProperty);
  if (criterion != null) {
    query.where(criterion);
  }
  query = inferTableForQuery(modelClass, query);
  CompiledStatement compiled = query.compile(getCompileContext());
  acquireNonExclusiveLock();
  try {
    return (int) getDatabase().simpleQueryForLong(compiled.sql, compiled.sqlArgs);
  } finally {
    releaseNonExclusiveLock();
  }
}

代码示例来源：origin: yahoo/squidb

/**
 * Build a {@link Query} combining this object's internal state with the arguments passed. If a
 * {@link ProjectionMap} is set, the projection elements will be evaluated and transformed accordingly. If the
 * sortOrder is null or empty, the default order will be used (if one was set).
 *
 * @param projection the raw column names to be selected
 * @param selection a raw selection string
 * @param selectionArgs array of strings which substitute replaceable arguments in the selection string
 * @param sortOrder a raw ordering clause
 * @return a {@link Query} using the projection, selection, selection args, and sort order
 */
public Query build(String[] projection, String selection, String[] selectionArgs, String sortOrder) {
  Query query = Query.select(computeProjection(projection)).from(dataSource);
  boolean hasUserSelection = !SqlUtils.isEmpty(selection);
  if (hasUserSelection) {
    query.where(Criterion.fromRawSelection(selection, selectionArgs));
  }
  if (!SqlUtils.isEmpty(sortOrder)) {
    query.orderBy(Order.fromExpression(sortOrder));
  } else if (defaultOrder != null && defaultOrder.length > 0) {
    query.orderBy(defaultOrder);
  }
  if (strictMode && hasUserSelection) {
    query.requestValidation();
  }
  return query;
}

代码示例来源：origin: yahoo/squidb

public void testReusableQuery() {
  AtomicReference<String> name = new AtomicReference<>();
  Query query = Query.select().where(Employee.NAME.eq(name));
  testReusableQueryInternal(name, "bigBird", query);
  testReusableQueryInternal(name, "cookieMonster", query);
  testReusableQueryInternal(name, "elmo", query);
}

代码示例来源：origin: yahoo/squidb

public void testReusableQueryWithInCriterion() {
  Set<String> collection = new HashSet<>();
  Query query = Query.select().where(Employee.NAME.in(collection));
  testReusableQueryWithInCriterionInternal(collection, query, "bigBird", "cookieMonster", "elmo");
  testReusableQueryWithInCriterionInternal(collection, query, "bigBird", "cookieMonster");
  testReusableQueryWithInCriterionInternal(collection, query, "oscar");
  testReusableQueryWithInCriterionInternal(collection, query);
}

代码示例来源：origin: yahoo/squidb

public void testInCriterion() {
  List<String> expectedNames = Arrays.asList("bigBird", "cookieMonster");
  Query query = Query.select().where(Employee.NAME.in("bigBird", "cookieMonster")).orderBy(Employee.NAME.asc());
  testInQuery(expectedNames, query);
  query = Query.select().where(Employee.NAME.notIn("bigBird", "cookieMonster")).orderBy(Employee.NAME.asc());
  testInQuery(Arrays.asList("bert", "elmo", "ernie", "oscar"), query);
  List<String> list = Arrays.asList("bigBird", "cookieMonster");
  query = Query.select().where(Employee.NAME.in(list)).orderBy(Employee.NAME.asc());
  testInQuery(expectedNames, query);
  // Test off-by-one error that used to occur when the in criterion wasn't the last criterion in the list
  query = Query.select().where(Employee.NAME.in(list).or(Field.field("1").neq(1))).orderBy(Employee.NAME.asc());
  testInQuery(expectedNames, query);
}

代码示例来源：origin: yahoo/squidb

public void testValidationPropagatesToSubqueryJoinAndCompoundSelect() {
  Query subquery = Query.select(Thing.FOO).from(Thing.TABLE).where(Thing.BAR.gt(0));
  Query joinSubquery = Query.select(Thing.BAR).from(Thing.TABLE).where(Thing.FOO.isNotEmpty());
  Query compoundSubquery = Query.select(Thing.BAZ).from(Thing.TABLE).where(Thing.IS_ALIVE.isTrue());
  SubqueryTable subqueryTable = subquery.as("t1");
  SubqueryTable joinTable = joinSubquery.as("t2");
  Query query = Query.select().from(subqueryTable).innerJoin(joinTable, (Criterion[]) null)
      .union(compoundSubquery);
  final int queryLength = query.compile(database.getCompileContext()).sql.length();
  String withValidation = query.sqlForValidation(database.getCompileContext());
  assertEquals(queryLength + 6, withValidation.length());
}

代码示例来源：origin: yahoo/squidb

public void testDatabaseProvidedArgumentResolver() {
  database.useCustomArgumentBinder = true;
  Query query = Query.select(TestModel.SOME_ENUM).from(TestModel.TABLE)
      .where(TestModel.SOME_ENUM.eq(TestEnum.APPLE));
  CompiledStatement compiledStatement = query.compile(database.getCompileContext());
  verifyCompiledSqlArgs(compiledStatement, 1, 0);
}

代码示例来源：origin: yahoo/squidb

public void testEnumResolvedUsingName() {
  Query query = Query.select(TestModel.SOME_ENUM).from(TestModel.TABLE)
      .where(TestModel.SOME_ENUM.eq(TestEnum.APPLE));
  CompiledStatement compiledStatement = query.compile(database.getCompileContext());
  verifyCompiledSqlArgs(compiledStatement, 1, "APPLE");
}

代码示例来源：origin: yahoo/squidb

public void testBindArgsProtectsInjection() {
  Query q = Query.select().where(Employee.NAME.eq("'Sam'); drop table " + Employee.TABLE.getName() + ";"));
  SquidCursor<Employee> cursor = database.query(Employee.class, q);
  try {
    assertFalse(database.countAll(Employee.class) == 0);
  } finally {
    cursor.close();
  }
}

代码示例来源：origin: yahoo/squidb

@Override
  public void run() {
    // insert into testModels select luckyNumber from testModels where luckyNumber = 9;
    Query query = Query.select(TestModel.FIRST_NAME, TestModel.LAST_NAME, TestModel.BIRTHDAY)
        .from(TestModel.TABLE)
        .where(TestModel.LUCKY_NUMBER.eq(9));
    Insert insert = Insert.into(TestModel.TABLE).select(query);
    insert.compile(database.getCompileContext());
  }
}, IllegalStateException.class);

代码示例来源：origin: yahoo/squidb

public void testNeedsValidationUpdatedByQueryFunction() {
  Query subquery = Query.select(Function.max(Thing.ID)).from(Thing.TABLE).where(Criterion.literal(123));
  subquery.requestValidation();
  assertTrue(subquery.compile(database.getCompileContext()).sql.contains("WHERE (?)"));
  Query baseTestQuery = Query.select().from(Thing.TABLE).where(Thing.FOO.isNotEmpty()).freeze();
  assertFalse(baseTestQuery.needsValidation());
  Query testQuery = baseTestQuery.selectMore(subquery.asFunction());
  assertTrue(testQuery.compile(database.getCompileContext()).needsValidation);
  assertTrue(testQuery.sqlForValidation(database.getCompileContext()).contains("WHERE ((?))"));
}

代码示例来源：origin: yahoo/squidb

@Override
  public void run() {
    // insert into testModels (firstName, lastName) select (firstName, lastName, creationDate) from
    // testModels where luckyNumber = 9;
    Query query = Query.select(TestModel.FIRST_NAME, TestModel.LAST_NAME, TestModel.BIRTHDAY)
        .from(TestModel.TABLE)
        .where(TestModel.LUCKY_NUMBER.eq(9));
    Insert insert = Insert.into(TestModel.TABLE).columns(TestModel.FIRST_NAME, TestModel.LAST_NAME)
        .select(query);
    insert.compile(database.getCompileContext());
  }
}, IllegalStateException.class);

代码示例来源：origin: yahoo/squidb

public void testIntersect() {
  Query query = Query.select().from(Employee.TABLE).where(Employee.MANAGER_ID.eq(1))
      .intersect(Query.select().from(Employee.TABLE).where(Employee.ID.eq(2)))
      .orderBy(Employee.ID.asc());
  SquidCursor<Employee> cursor = database.query(Employee.class, query);
  try {
    assertEquals(1, cursor.getCount());
    cursor.moveToFirst();
    assertEquals(cookieMonster, new Employee(cursor));
  } finally {
    cursor.close();
  }
}

代码示例来源：origin: yahoo/squidb

public void testQueryBindingTypes() {
  insertBasicTestModel();
  Field<Integer> one = Field.field("1");
  SquidCursor<TestModel> cursor = database.query(TestModel.class, Query.select().where(Function.abs(one).eq(1)));
  try {
    assertEquals(1, cursor.getCount());
  } finally {
    cursor.close();
  }
}

代码示例来源：origin: yahoo/squidb

public void testSelectionArgsGeneration() {
  Query query = Query.select(TestModel.PROPERTIES)
      .where(TestModel.FIRST_NAME.eq("Sam")
          .and(TestModel.BIRTHDAY.gt(17))
          .and(TestModel.LAST_NAME.neq("Smith")));
  CompiledStatement compiledQuery = query.compile(database.getCompileContext());
  verifyCompiledSqlArgs(compiledQuery, 3, "Sam", 17, "Smith");
}

代码示例来源：origin: yahoo/squidb

public void testWithNonLiteralCriterion() {
  TestModel model = new TestModel().setFirstName("Sam").setLastName("Sam");
  database.persist(model);
  TestModel fetch = database
      .fetchByQuery(TestModel.class, Query.select().where(TestModel.FIRST_NAME.eq(TestModel.LAST_NAME)));
  assertNotNull(fetch);
  assertEquals(fetch.getFirstName(), fetch.getLastName());
}

代码示例来源：origin: yahoo/squidb

public void testChangeCursorClosesOldCursor() {
  TestAdapter adapter = new TestAdapter(new TestModel());
  SquidCursor<TestModel> cursor1 = database.query(TestModel.class, Query.select());
  adapter.swapCursor(cursor1);
  SquidCursor<TestModel> cursor2 = database.query(TestModel.class, Query.select().where(TestModel.ID.eq(1)));
  adapter.changeCursor(cursor2);
  assertTrue(cursor1.isClosed());
  adapter.changeCursor(null);
  cursor2.close();
}