com.yahoo.squidb.sql.Query.where()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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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

  1. protected <TYPE extends AbstractModel> SquidCursor<TYPE> fetchFirstItem(Class<TYPE> modelClass,
  2.     Criterion criterion, Property<?>... properties) {
  3.   return fetchFirstItem(modelClass, Query.select(properties).where(criterion));
  4. }

代码示例来源：origin: yahoo/squidb

  1. /**
  2.  * Add a {@link Criterion} to the WHERE clause of this query. Multiple calls will combine all the criterions with
  3.  * AND.
  4.  *
  5.  * @param criterion the Criterion to add to the WHERE clause
  6.  * @return this Query object, to allow chaining method calls
  7.  */
  8. public Query where(Criterion criterion) {
  9.   if (criterion == null) {
  10.     return this;
  11.   }
  12.   if (immutable) {
  13.     return fork().where(criterion);
  14.   }
  15.   if (criterions == null) {
  16.     criterions = new ArrayList<>();
  17.   }
  18.   criterions.add(criterion);
  19.   invalidateCompileCache();
  20.   return this;
  21. }

代码示例来源：origin: yahoo/squidb

  1. public Query getTasksWithTagsQuery(Criterion filterBy) {
  2.   if (filterBy == null) {
  3.     return TASKS_WITH_TAGS;
  4.   }
  5.   // Since the query is frozen, this will create a clone with the given filter
  6.   return TASKS_WITH_TAGS.where(filterBy);
  7. }

代码示例来源：origin: yahoo/squidb

  1. /**
  2.  * Count the number of rows matching a given {@link Criterion}. Use null to count all rows.
  3.  *
  4.  * @param modelClass the model class corresponding to the table
  5.  * @param criterion the criterion to match
  6.  * @return the number of rows matching the given criterion
  7.  */
  8. public int count(Class<? extends AbstractModel> modelClass, Criterion criterion) {
  9.   Property.IntegerProperty countProperty = Property.IntegerProperty.countProperty();
  10.   Query query = Query.select(countProperty);
  11.   if (criterion != null) {
  12.     query.where(criterion);
  13.   }
  14.   query = inferTableForQuery(modelClass, query);
  15.   CompiledStatement compiled = query.compile(getCompileContext());
  16.   acquireNonExclusiveLock();
  17.   try {
  18.     return (int) getDatabase().simpleQueryForLong(compiled.sql, compiled.sqlArgs);
  19.   } finally {
  20.     releaseNonExclusiveLock();
  21.   }
  22. }

代码示例来源：origin: yahoo/squidb

  1. /**
  2.  * Build a {@link Query} combining this object's internal state with the arguments passed. If a
  3.  * {@link ProjectionMap} is set, the projection elements will be evaluated and transformed accordingly. If the
  4.  * sortOrder is null or empty, the default order will be used (if one was set).
  5.  *
  6.  * @param projection the raw column names to be selected
  7.  * @param selection a raw selection string
  8.  * @param selectionArgs array of strings which substitute replaceable arguments in the selection string
  9.  * @param sortOrder a raw ordering clause
  10.  * @return a {@link Query} using the projection, selection, selection args, and sort order
  11.  */
  12. public Query build(String[] projection, String selection, String[] selectionArgs, String sortOrder) {
  13.   Query query = Query.select(computeProjection(projection)).from(dataSource);
  14.   boolean hasUserSelection = !SqlUtils.isEmpty(selection);
  15.   if (hasUserSelection) {
  16.     query.where(Criterion.fromRawSelection(selection, selectionArgs));
  17.   }
  18.   if (!SqlUtils.isEmpty(sortOrder)) {
  19.     query.orderBy(Order.fromExpression(sortOrder));
  20.   } else if (defaultOrder != null && defaultOrder.length > 0) {
  21.     query.orderBy(defaultOrder);
  22.   }
  23.   if (strictMode && hasUserSelection) {
  24.     query.requestValidation();
  25.   }
  26.   return query;
  27. }

代码示例来源：origin: yahoo/squidb

  1. public void testReusableQuery() {
  2.   AtomicReference<String> name = new AtomicReference<>();
  3.   Query query = Query.select().where(Employee.NAME.eq(name));
  4.   testReusableQueryInternal(name, "bigBird", query);
  5.   testReusableQueryInternal(name, "cookieMonster", query);
  6.   testReusableQueryInternal(name, "elmo", query);
  7. }

代码示例来源：origin: yahoo/squidb

  1. public void testReusableQueryWithInCriterion() {
  2.   Set<String> collection = new HashSet<>();
  3.   Query query = Query.select().where(Employee.NAME.in(collection));
  4.   testReusableQueryWithInCriterionInternal(collection, query, "bigBird", "cookieMonster", "elmo");
  5.   testReusableQueryWithInCriterionInternal(collection, query, "bigBird", "cookieMonster");
  6.   testReusableQueryWithInCriterionInternal(collection, query, "oscar");
  7.   testReusableQueryWithInCriterionInternal(collection, query);
  8. }

代码示例来源：origin: yahoo/squidb

  1. public void testInCriterion() {
  2.   List<String> expectedNames = Arrays.asList("bigBird", "cookieMonster");
  3.   Query query = Query.select().where(Employee.NAME.in("bigBird", "cookieMonster")).orderBy(Employee.NAME.asc());
  4.   testInQuery(expectedNames, query);
  5.   query = Query.select().where(Employee.NAME.notIn("bigBird", "cookieMonster")).orderBy(Employee.NAME.asc());
  6.   testInQuery(Arrays.asList("bert", "elmo", "ernie", "oscar"), query);
  7.   List<String> list = Arrays.asList("bigBird", "cookieMonster");
  8.   query = Query.select().where(Employee.NAME.in(list)).orderBy(Employee.NAME.asc());
  9.   testInQuery(expectedNames, query);
  10.   // Test off-by-one error that used to occur when the in criterion wasn't the last criterion in the list
  11.   query = Query.select().where(Employee.NAME.in(list).or(Field.field("1").neq(1))).orderBy(Employee.NAME.asc());
  12.   testInQuery(expectedNames, query);
  13. }

代码示例来源：origin: yahoo/squidb

  1. public void testValidationPropagatesToSubqueryJoinAndCompoundSelect() {
  2.   Query subquery = Query.select(Thing.FOO).from(Thing.TABLE).where(Thing.BAR.gt(0));
  3.   Query joinSubquery = Query.select(Thing.BAR).from(Thing.TABLE).where(Thing.FOO.isNotEmpty());
  4.   Query compoundSubquery = Query.select(Thing.BAZ).from(Thing.TABLE).where(Thing.IS_ALIVE.isTrue());
  5.   SubqueryTable subqueryTable = subquery.as("t1");
  6.   SubqueryTable joinTable = joinSubquery.as("t2");
  7.   Query query = Query.select().from(subqueryTable).innerJoin(joinTable, (Criterion[]) null)
  8.       .union(compoundSubquery);
  9.   final int queryLength = query.compile(database.getCompileContext()).sql.length();
  10.   String withValidation = query.sqlForValidation(database.getCompileContext());
  11.   assertEquals(queryLength + 6, withValidation.length());
  12. }

代码示例来源：origin: yahoo/squidb

  1. public void testDatabaseProvidedArgumentResolver() {
  2.   database.useCustomArgumentBinder = true;
  3.   Query query = Query.select(TestModel.SOME_ENUM).from(TestModel.TABLE)
  4.       .where(TestModel.SOME_ENUM.eq(TestEnum.APPLE));
  5.   CompiledStatement compiledStatement = query.compile(database.getCompileContext());
  6.   verifyCompiledSqlArgs(compiledStatement, 1, 0);
  7. }

代码示例来源：origin: yahoo/squidb

  1. public void testEnumResolvedUsingName() {
  2.   Query query = Query.select(TestModel.SOME_ENUM).from(TestModel.TABLE)
  3.       .where(TestModel.SOME_ENUM.eq(TestEnum.APPLE));
  4.   CompiledStatement compiledStatement = query.compile(database.getCompileContext());
  5.   verifyCompiledSqlArgs(compiledStatement, 1, "APPLE");
  6. }

代码示例来源：origin: yahoo/squidb

  1. public void testBindArgsProtectsInjection() {
  2.   Query q = Query.select().where(Employee.NAME.eq("'Sam'); drop table " + Employee.TABLE.getName() + ";"));
  3.   SquidCursor<Employee> cursor = database.query(Employee.class, q);
  4.   try {
  5.     assertFalse(database.countAll(Employee.class) == 0);
  6.   } finally {
  7.     cursor.close();
  8.   }
  9. }

代码示例来源：origin: yahoo/squidb

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

代码示例来源：origin: yahoo/squidb

  1. public void testNeedsValidationUpdatedByQueryFunction() {
  2.   Query subquery = Query.select(Function.max(Thing.ID)).from(Thing.TABLE).where(Criterion.literal(123));
  3.   subquery.requestValidation();
  4.   assertTrue(subquery.compile(database.getCompileContext()).sql.contains("WHERE (?)"));
  5.   Query baseTestQuery = Query.select().from(Thing.TABLE).where(Thing.FOO.isNotEmpty()).freeze();
  6.   assertFalse(baseTestQuery.needsValidation());
  7.   Query testQuery = baseTestQuery.selectMore(subquery.asFunction());
  8.   assertTrue(testQuery.compile(database.getCompileContext()).needsValidation);
  9.   assertTrue(testQuery.sqlForValidation(database.getCompileContext()).contains("WHERE ((?))"));
  10. }

代码示例来源：origin: yahoo/squidb

  1. @Override
  2.   public void run() {
  3.     // insert into testModels (firstName, lastName) select (firstName, lastName, creationDate) from
  4.     // testModels where luckyNumber = 9;
  5.     Query query = Query.select(TestModel.FIRST_NAME, TestModel.LAST_NAME, TestModel.BIRTHDAY)
  6.         .from(TestModel.TABLE)
  7.         .where(TestModel.LUCKY_NUMBER.eq(9));
  8.     Insert insert = Insert.into(TestModel.TABLE).columns(TestModel.FIRST_NAME, TestModel.LAST_NAME)
  9.         .select(query);
  10.     insert.compile(database.getCompileContext());
  11.   }
  12. }, IllegalStateException.class);

代码示例来源：origin: yahoo/squidb

  1. public void testIntersect() {
  2.   Query query = Query.select().from(Employee.TABLE).where(Employee.MANAGER_ID.eq(1))
  3.       .intersect(Query.select().from(Employee.TABLE).where(Employee.ID.eq(2)))
  4.       .orderBy(Employee.ID.asc());
  5.   SquidCursor<Employee> cursor = database.query(Employee.class, query);
  6.   try {
  7.     assertEquals(1, cursor.getCount());
  8.     cursor.moveToFirst();
  9.     assertEquals(cookieMonster, new Employee(cursor));
  10.   } finally {
  11.     cursor.close();
  12.   }
  13. }

代码示例来源：origin: yahoo/squidb

  1. public void testQueryBindingTypes() {
  2.   insertBasicTestModel();
  3.   Field<Integer> one = Field.field("1");
  4.   SquidCursor<TestModel> cursor = database.query(TestModel.class, Query.select().where(Function.abs(one).eq(1)));
  5.   try {
  6.     assertEquals(1, cursor.getCount());
  7.   } finally {
  8.     cursor.close();
  9.   }
  10. }

代码示例来源：origin: yahoo/squidb

  1. public void testSelectionArgsGeneration() {
  2.   Query query = Query.select(TestModel.PROPERTIES)
  3.       .where(TestModel.FIRST_NAME.eq("Sam")
  4.           .and(TestModel.BIRTHDAY.gt(17))
  5.           .and(TestModel.LAST_NAME.neq("Smith")));
  6.   CompiledStatement compiledQuery = query.compile(database.getCompileContext());
  7.   verifyCompiledSqlArgs(compiledQuery, 3, "Sam", 17, "Smith");
  8. }

代码示例来源：origin: yahoo/squidb

  1. public void testWithNonLiteralCriterion() {
  2.   TestModel model = new TestModel().setFirstName("Sam").setLastName("Sam");
  3.   database.persist(model);
  4.   TestModel fetch = database
  5.       .fetchByQuery(TestModel.class, Query.select().where(TestModel.FIRST_NAME.eq(TestModel.LAST_NAME)));
  6.   assertNotNull(fetch);
  7.   assertEquals(fetch.getFirstName(), fetch.getLastName());
  8. }

代码示例来源：origin: yahoo/squidb

  1. public void testChangeCursorClosesOldCursor() {
  2.   TestAdapter adapter = new TestAdapter(new TestModel());
  3.   SquidCursor<TestModel> cursor1 = database.query(TestModel.class, Query.select());
  4.   adapter.swapCursor(cursor1);
  5.   SquidCursor<TestModel> cursor2 = database.query(TestModel.class, Query.select().where(TestModel.ID.eq(1)));
  6.   adapter.changeCursor(cursor2);
  7.   assertTrue(cursor1.isClosed());
  8.   adapter.changeCursor(null);
  9.   cursor2.close();
  10. }

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