Query

java.lang.Object
- ohos.data.distributed.common.Query

```
public class Query
extends Object
```
Represents a database query using a predicate.
This class provides a constructor used to create a Query instance, which is used to query data matching specified conditions in the database.
This class also provides methods for adding predicates to the Query instance.

从以下版本开始:

3

SystemCapability

SystemCapability.Data#DATA_DISTRIBUTEDDATAMGR

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法	说明
`Query`	`and()`	Constructs a `Query` object with the `and` condition.
`Query`	`beginGroup()`	Creates a query condition group with a left bracket.
`Query`	`endGroup()`	Creates a query condition group with a right bracket.
`Query`	`equalTo(String field, boolean value)`	Constructs a `Query` object to query entries with the specified field whose value is equal to the specified boolean value.
`Query`	`equalTo(String field, double value)`	Constructs a `Query` object to query entries with the specified field whose value is equal to the specified double value.
`Query`	`equalTo(String field, int value)`	Constructs a `Query` object to query entries with the specified field whose value is equal to the specified int value.
`Query`	`equalTo(String field, long value)`	Constructs a `Query` object to query entries with the specified field whose value is equal to the specified long value.
`Query`	`equalTo(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is equal to the specified string value.
`Query`	`greaterThan(String field, double value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than the specified double value.
`Query`	`greaterThan(String field, int value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than the specified int value.
`Query`	`greaterThan(String field, long value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than the specified long value.
`Query`	`greaterThan(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than the specified string value.
`Query`	`greaterThanOrEqualTo(String field, double value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than or equal to the specified double value.
`Query`	`greaterThanOrEqualTo(String field, int value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than or equal to the specified int value.
`Query`	`greaterThanOrEqualTo(String field, long value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than or equal to the specified long value.
`Query`	`greaterThanOrEqualTo(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is greater than or equal to the specified string value.
`Query`	`inDouble(String field, List<Double> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is within the specified double value list.
`Query`	`inInt(String field, List<Integer> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is within the specified int value list.
`Query`	`inLong(String field, List<Long> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is within the specified long value list.
`Query`	`inString(String field, List<String> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is within the specified string value list.
`Query`	`isNotNull(String field)`	Creates a query condition with a specified field that is not null.
`Query`	`isNull(String field)`	Constructs a `Query` object to query entries with the specified field whose value is null.
`Query`	`lessThan(String field, double value)`	Constructs a `Query` object to query entries with the specified field whose value is less than the specified double value.
`Query`	`lessThan(String field, int value)`	Constructs a `Query` object to query entries with the specified field whose value is less than the specified int value.
`Query`	`lessThan(String field, long value)`	Constructs a `Query` object to query entries with the specified field whose value is less than the specified long value.
`Query`	`lessThan(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is less than the specified string value.
`Query`	`lessThanOrEqualTo(String field, double value)`	Constructs a `Query` object to query entries with the specified field whose value is less than or equal to the specified double value.
`Query`	`lessThanOrEqualTo(String field, int value)`	Constructs a `Query` object to query entries with the specified field whose value is less than or equal to the specified int value.
`Query`	`lessThanOrEqualTo(String field, long value)`	Constructs a `Query` object to query entries with the specified field whose value is less than or equal to the specified long value.
`Query`	`lessThanOrEqualTo(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is less than or equal to the specified string value.
`Query`	`like(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is similar to the specified string value.
`Query`	`limit(int number, int offset)`	Constructs a `Query` object to specify the number of results and the start position.
`Query`	`notEqualTo(String field, boolean value)`	Constructs a `Query` object to query entries with the specified field whose value is not equal to the specified boolean value.
`Query`	`notEqualTo(String field, double value)`	Constructs a `Query` object to query entries with the specified field whose value is not equal to the specified double value.
`Query`	`notEqualTo(String field, int value)`	Constructs a `Query` object to query entries with the specified field whose value is not equal to the specified int value.
`Query`	`notEqualTo(String field, long value)`	Constructs a `Query` object to query entries with the specified field whose value is not equal to the specified long value.
`Query`	`notEqualTo(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is not equal to the specified string value.
`Query`	`notInDouble(String field, List<Double> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is not within the specified double value list.
`Query`	`notInInt(String field, List<Integer> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is not within the specified int value list.
`Query`	`notInLong(String field, List<Long> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is not within the specified long value list.
`Query`	`notInString(String field, List<String> valueList)`	Constructs a `Query` object to query entries with the specified field whose value is not within the specified string value list.
`Query`	`or()`	Constructs a `Query` object with the `or` condition.
`Query`	`orderByAsc(String field)`	Constructs a `Query` object to sort the query results in ascending order.
`Query`	`orderByDesc(String field)`	Constructs a `Query` object to sort the query results in descending order.
`Query`	`prefixKey(String prefix)`	Creates a query condition with a specified key prefix.
`Query`	`reset()`	Resets this `Query` object.
`static Query`	`select()`	Obtains an initialized `Query` instance.
`Query`	`setSuggestIndex(String index)`	Sets a specified index that will be preferentially used for query.
`Query`	`unlike(String field, String value)`	Constructs a `Query` object to query entries with the specified field whose value is not similar to the specified string value.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 方法详细资料
  - select
```
public static Query select()
```
    Obtains an initialized Query instance.
    
    返回:
    
    Returns the initialized Query instance.
    
    从以下版本开始:
    
    3
  - reset
```
public Query reset()
```
    Resets this Query object.
    
    返回:
    
    Returns the reset Query object.
    
    从以下版本开始:
    
    3
  - equalTo
```
public Query equalTo(String field,
                     int value)
              throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is equal to the specified int value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the int value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - equalTo
```
public Query equalTo(String field,
                     long value)
              throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is equal to the specified long value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the long value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - equalTo
```
public Query equalTo(String field,
                     double value)
              throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is equal to the specified double value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the double value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - equalTo
```
public Query equalTo(String field,
                     String value)
              throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is equal to the specified string value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - equalTo
```
public Query equalTo(String field,
                     boolean value)
              throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is equal to the specified boolean value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the boolean value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notEqualTo
```
public Query notEqualTo(String field,
                        int value)
                 throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not equal to the specified int value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the int value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notEqualTo
```
public Query notEqualTo(String field,
                        long value)
                 throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not equal to the specified long value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the long value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notEqualTo
```
public Query notEqualTo(String field,
                        double value)
                 throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not equal to the specified double value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the double value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notEqualTo
```
public Query notEqualTo(String field,
                        boolean value)
                 throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not equal to the specified boolean value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the boolean value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notEqualTo
```
public Query notEqualTo(String field,
                        String value)
                 throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not equal to the specified string value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThan
```
public Query greaterThan(String field,
                         int value)
                  throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than the specified int value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the int value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThan
```
public Query greaterThan(String field,
                         long value)
                  throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than the specified long value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the long value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThan
```
public Query greaterThan(String field,
                         double value)
                  throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than the specified double value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the double value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThan
```
public Query greaterThan(String field,
                         String value)
                  throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than the specified string value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThan
```
public Query lessThan(String field,
                      int value)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than the specified int value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the int value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThan
```
public Query lessThan(String field,
                      long value)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than the specified long value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the long value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThan
```
public Query lessThan(String field,
                      double value)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than the specified double value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the double value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThan
```
public Query lessThan(String field,
                      String value)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than the specified string value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThanOrEqualTo
```
public Query greaterThanOrEqualTo(String field,
                                  int value)
                           throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than or equal to the specified int value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the int value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThanOrEqualTo
```
public Query greaterThanOrEqualTo(String field,
                                  long value)
                           throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than or equal to the specified long value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the long value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThanOrEqualTo
```
public Query greaterThanOrEqualTo(String field,
                                  double value)
                           throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than or equal to the specified double value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the double value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - greaterThanOrEqualTo
```
public Query greaterThanOrEqualTo(String field,
                                  String value)
                           throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is greater than or equal to the specified string value. Two strings are compared character by character lexicographically based on dictionary ordering.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value, which cannot contain ^.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThanOrEqualTo
```
public Query lessThanOrEqualTo(String field,
                               int value)
                        throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than or equal to the specified int value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the int value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThanOrEqualTo
```
public Query lessThanOrEqualTo(String field,
                               long value)
                        throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than or equal to the specified long value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the long value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThanOrEqualTo
```
public Query lessThanOrEqualTo(String field,
                               double value)
                        throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than or equal to the specified double value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the double value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - lessThanOrEqualTo
```
public Query lessThanOrEqualTo(String field,
                               String value)
                        throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is less than or equal to the specified string value. Two strings are compared character by character lexicographically based on dictionary ordering.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value, which cannot contain ^.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - isNull
```
public Query isNull(String field)
             throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is null.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - inInt
```
public Query inInt(String field,
                   List<Integer> valueList)
            throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is within the specified int value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the int value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - inLong
```
public Query inLong(String field,
                    List<Long> valueList)
             throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is within the specified long value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the long value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - inDouble
```
public Query inDouble(String field,
                      List<Double> valueList)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is within the specified double value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the double value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - inString
```
public Query inString(String field,
                      List<String> valueList)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is within the specified string value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the string value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notInInt
```
public Query notInInt(String field,
                      List<Integer> valueList)
               throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not within the specified int value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the int value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notInLong
```
public Query notInLong(String field,
                       List<Long> valueList)
                throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not within the specified long value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the long value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notInDouble
```
public Query notInDouble(String field,
                         List<Double> valueList)
                  throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not within the specified double value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the double value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - notInString
```
public Query notInString(String field,
                         List<String> valueList)
                  throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not within the specified string value list.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    valueList - Indicates the string value list.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - like
```
public Query like(String field,
                  String value)
           throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is similar to the specified string value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - unlike
```
public Query unlike(String field,
                    String value)
             throws KvStoreException
```
    Constructs a Query object to query entries with the specified field whose value is not similar to the specified string value.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    value - Indicates the string value.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - and
```
public Query and()
```
    Constructs a Query object with the and condition.
    Multiple predicates should be connected using the and or or condition.
    
    返回:
    
    Returns the Query object.
    
    从以下版本开始:
    
    3
  - or
```
public Query or()
```
    Constructs a Query object with the or condition.
    Multiple predicates should be connected using the and or or condition.
    
    返回:
    
    Returns the Query object.
    
    从以下版本开始:
    
    3
  - orderByAsc
```
public Query orderByAsc(String field)
                 throws KvStoreException
```
    Constructs a Query object to sort the query results in ascending order.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - orderByDesc
```
public Query orderByDesc(String field)
                  throws KvStoreException
```
    Constructs a Query object to sort the query results in descending order.
    
    参数:
    
    field - Indicates the field, which must start with $. and cannot contain ^.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if input is invalid.
    
    从以下版本开始:
    
    3
  - limit
```
public Query limit(int number,
                   int offset)
```
    Constructs a Query object to specify the number of results and the start position.
    
    参数:
    
    number - Indicates the number of results.
    
    offset - Indicates the start position.
    
    返回:
    
    Returns the Query object.
    
    从以下版本开始:
    
    3
  - isNotNull
```
public Query isNotNull(String field)
                throws KvStoreException
```
    Creates a query condition with a specified field that is not null.
    
    参数:
    
    field - Indicates the specified field.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if field is incorrect.
    
    从以下版本开始:
    
    4
  - beginGroup
```
public Query beginGroup()
```
    Creates a query condition group with a left bracket.
    Multiple query conditions in an Query object can be grouped. The query conditions in a group can be used as a whole to combine with other query conditions.
    
    返回:
    
    Returns the Query object.
    
    从以下版本开始:
    
    4
  - endGroup
```
public Query endGroup()
```
    Creates a query condition group with a right bracket.
    Multiple query conditions in an Query object can be grouped. The query conditions in a group can be used as a whole to combine with other query conditions.
    
    返回:
    
    Returns the Query object.
    
    从以下版本开始:
    
    4
  - prefixKey
```
public Query prefixKey(String prefix)
                throws KvStoreException
```
    Creates a query condition with a specified key prefix.
    
    参数:
    
    prefix - Indicates the specified key prefix.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    KvStoreException - Throws this exception if prefix is incorrect.
    
    从以下版本开始:
    
    4
  - setSuggestIndex
```
public Query setSuggestIndex(String index)
```
    Sets a specified index that will be preferentially used for query.
    
    参数:
    
    index - Indicates the index to set.
    
    返回:
    
    Returns the Query object.
    
    抛出:
    
    IllegalArgumentException - Throws this exception if index is incorrect.
    
    从以下版本开始:
    
    5

类 Query

方法概要

从类继承的方法 java.lang.Object

方法详细资料

select

reset

equalTo

equalTo

equalTo

equalTo

equalTo

notEqualTo

notEqualTo

notEqualTo

notEqualTo

notEqualTo

greaterThan

greaterThan

greaterThan

greaterThan

lessThan

lessThan

lessThan

lessThan

greaterThanOrEqualTo

greaterThanOrEqualTo

greaterThanOrEqualTo

greaterThanOrEqualTo

lessThanOrEqualTo

lessThanOrEqualTo

lessThanOrEqualTo

lessThanOrEqualTo

isNull

inInt

inLong

inDouble

inString

notInInt

notInLong

notInDouble

notInString

like

unlike

and

or

orderByAsc

orderByDesc

limit

isNotNull

beginGroup

endGroup

prefixKey

setSuggestIndex