java.lang.Object
- com.clickhouse.client.data.ClickHouseStringValue

All Implemented Interfaces:

ClickHouseValue, Serializable
```
public class ClickHouseStringValue
extends Object
implements ClickHouseValue
```
Wraper class of string.

See Also:

Serialized Form

Constructor Summary

Constructors
Modifier Constructor Description

protected ClickHouseStringValue(String value)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BigDecimal`	`asBigDecimal(int scale)`	Gets value as `BigDecimal`.
`BigInteger`	`asBigInteger()`	Gets value as `BigInteger`.
`boolean`	`asBoolean()`	Gets value as boolean.
`byte`	`asByte()`	Gets value as byte.
`LocalDate`	`asDate()`	Gets value as `LocalDate`.
`LocalDateTime`	`asDateTime(int scale)`	Gets value as `LocalDateTime`.
`double`	`asDouble()`	Gets value as double.
`<T extends Enum<T>> T`	`asEnum(Class<T> enumType)`	Gets value as enum.
`float`	`asFloat()`	Gets value as float.
`Inet4Address`	`asInet4Address()`	Gets value as `Inet4Address`.
`Inet6Address`	`asInet6Address()`	Gets value as `Inet6Address`.
`int`	`asInteger()`	Gets value as integer.
`long`	`asLong()`	Gets value as long.
`Object`	`asObject()`	Gets value as an object.
`short`	`asShort()`	Gets value as short.
`String`	`asString()`	Gets value as unbounded string, using default charset(usually UTF-8).
`String`	`asString(int length, Charset charset)`	Gets value as fixed length(in bytes) string.
`LocalTime`	`asTime()`	Gets value as `LocalTime`.
`UUID`	`asUuid()`	Gets value as UUID.
`ClickHouseStringValue`	`copy(boolean deep)`	Gets a copy of this value object.
`boolean`	`equals(Object obj)`
`String`	`getValue()`	Gets value.
`int`	`hashCode()`
`boolean`	`isNullOrEmpty()`	Checks if the value is null, or empty for non-null types like Array, Tuple and Map.
`static ClickHouseStringValue`	`of(ClickHouseValue ref, String value)`	Update value of the given object or create a new instance if `ref` is null.
`static ClickHouseStringValue`	`of(String value)`	Wrap the given value.
`static ClickHouseStringValue`	`ofNull()`	Create a new instance representing null value.
`static ClickHouseStringValue`	`ofNull(ClickHouseValue ref)`	Update given value to null or create a new instance if `ref` is null.
`ClickHouseStringValue`	`resetToNullOrEmpty()`	Resets value to null, or empty when null is not supported(e.g.
`protected ClickHouseStringValue`	`set(String value)`
`String`	`toSqlExpression()`	Converts the value to escaped SQL expression.
`String`	`toString()`
`ClickHouseStringValue`	`update(boolean value)`	Updates value.
`ClickHouseStringValue`	`update(byte value)`	Updates value.
`ClickHouseStringValue`	`update(char value)`	Updates value.
`ClickHouseStringValue`	`update(double value)`	Updates value.
`ClickHouseStringValue`	`update(float value)`	Updates value.
`ClickHouseStringValue`	`update(int value)`	Updates value.
`ClickHouseStringValue`	`update(long value)`	Updates value.
`ClickHouseStringValue`	`update(short value)`	Updates value.
`ClickHouseStringValue`	`update(ClickHouseValue value)`	Updates value.
`ClickHouseStringValue`	`update(Enum<?> value)`	Updates value.
`ClickHouseStringValue`	`update(Object value)`	Updates value.
`ClickHouseStringValue`	`update(String value)`	Updates value.
`ClickHouseValue`	`update(BigDecimal value)`	Updates value.
`ClickHouseValue`	`update(BigInteger value)`	Updates value.
`ClickHouseStringValue`	`update(Inet4Address value)`	Updates value.
`ClickHouseStringValue`	`update(Inet6Address value)`	Updates value.
`ClickHouseStringValue`	`update(LocalDate value)`	Updates value.
`ClickHouseStringValue`	`update(LocalDateTime value)`	Updates value.
`ClickHouseStringValue`	`update(LocalTime value)`	Updates value.
`ClickHouseStringValue`	`update(UUID value)`	Updates value.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.clickhouse.client.ClickHouseValue
asArray, asArray, asBigDecimal, asByteStream, asCharacter, asCharacterStream, asDateTime, asInstant, asInstant, asMap, asMap, asObject, asOffsetDateTime, asOffsetDateTime, asString, asString, asTime, asTuple, asZonedDateTime, asZonedDateTime, copy, isInfinity, isNaN, newUnsupportedException, update, update, update, update, update, update, update, update, update, update, update, update, update, update, update, update, update, updateUnknown

- Constructor Detail
  - ClickHouseStringValue
```
protected ClickHouseStringValue(String value)
```
- Method Detail
  - ofNull
```
public static ClickHouseStringValue ofNull()
```
    Create a new instance representing null value.
    
    Returns:
    
    new instance representing null value
  - ofNull
```
public static ClickHouseStringValue ofNull(ClickHouseValue ref)
```
    Update given value to null or create a new instance if ref is null.
    
    Parameters:
    
    ref - object to update, could be null
    
    Returns:
    
    same object as ref or a new instance if it's null
  - of
```
public static ClickHouseStringValue of(String value)
```
    Wrap the given value.
    
    Parameters:
    
    value - value
    
    Returns:
    
    object representing the value
  - of
```
public static ClickHouseStringValue of(ClickHouseValue ref,
                                       String value)
```
    Update value of the given object or create a new instance if ref is null.
    
    Parameters:
    
    ref - object to update, could be null
    
    value - value
    
    Returns:
    
    same object as ref or a new instance if it's null
  - set
```
protected ClickHouseStringValue set(String value)
```
  - getValue
```
public String getValue()
```
    Gets value.
    
    Returns:
    
    value
  - copy
```
public ClickHouseStringValue copy(boolean deep)
```
    Description copied from interface: ClickHouseValue
    
    Gets a copy of this value object.
    
    Specified by:
    
    copy in interface ClickHouseValue
    
    Parameters:
    
    deep - true to create a deep copy; false for a shallow copy
    
    Returns:
    
    copy of this value object
  - isNullOrEmpty
```
public boolean isNullOrEmpty()
```
    Description copied from interface: ClickHouseValue
    
    Checks if the value is null, or empty for non-null types like Array, Tuple and Map.
    Please pay attention that only nullability will be considered for String, meaning this method will return false for an empty string. This is because String is treated as value-based type instead of a container like Array.
    
    Specified by:
    
    isNullOrEmpty in interface ClickHouseValue
    
    Returns:
    
    true if the value is null or empty; false otherwise
  - asBoolean
```
public boolean asBoolean()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as boolean.
    
    Specified by:
    
    asBoolean in interface ClickHouseValue
    
    Returns:
    
    boolean value
  - asByte
```
public byte asByte()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as byte.
    
    Specified by:
    
    asByte in interface ClickHouseValue
    
    Returns:
    
    byte value
  - asShort
```
public short asShort()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as short.
    
    Specified by:
    
    asShort in interface ClickHouseValue
    
    Returns:
    
    short value
  - asInteger
```
public int asInteger()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as integer.
    
    Specified by:
    
    asInteger in interface ClickHouseValue
    
    Returns:
    
    integer value
  - asLong
```
public long asLong()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as long.
    
    Specified by:
    
    asLong in interface ClickHouseValue
    
    Returns:
    
    long value
  - asBigInteger
```
public BigInteger asBigInteger()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as BigInteger.
    
    Specified by:
    
    asBigInteger in interface ClickHouseValue
    
    Returns:
    
    big integer, could be null
  - asFloat
```
public float asFloat()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as float.
    
    Specified by:
    
    asFloat in interface ClickHouseValue
    
    Returns:
    
    float value
  - asDouble
```
public double asDouble()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as double.
    
    Specified by:
    
    asDouble in interface ClickHouseValue
    
    Returns:
    
    double value
  - asBigDecimal
```
public BigDecimal asBigDecimal(int scale)
```
    Description copied from interface: ClickHouseValue
    
    Gets value as BigDecimal.
    
    Specified by:
    
    asBigDecimal in interface ClickHouseValue
    
    Parameters:
    
    scale - scale of the decimal
    
    Returns:
    
    big decimal, could be null
  - asDate
```
public LocalDate asDate()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as LocalDate.
    
    Specified by:
    
    asDate in interface ClickHouseValue
    
    Returns:
    
    date, could be null
  - asTime
```
public LocalTime asTime()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as LocalTime.
    
    Specified by:
    
    asTime in interface ClickHouseValue
    
    Returns:
    
    time, could be null
  - asDateTime
```
public LocalDateTime asDateTime(int scale)
```
    Description copied from interface: ClickHouseValue
    
    Gets value as LocalDateTime.
    
    Specified by:
    
    asDateTime in interface ClickHouseValue
    
    Parameters:
    
    scale - scale of the date time, between 0 (second) and 9 (nano second)
    
    Returns:
    
    date time, could be null
  - asEnum
```
public <T extends Enum<T>> T asEnum(Class<T> enumType)
```
    Description copied from interface: ClickHouseValue
    
    Gets value as enum.
    
    Specified by:
    
    asEnum in interface ClickHouseValue
    
    Type Parameters:
    
    T - type of the enum
    
    Parameters:
    
    enumType - enum class
    
    Returns:
    
    enum, could be null
  - asInet4Address
```
public Inet4Address asInet4Address()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as Inet4Address.
    
    Specified by:
    
    asInet4Address in interface ClickHouseValue
    
    Returns:
    
    IPv4 address, could be null
  - asInet6Address
```
public Inet6Address asInet6Address()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as Inet6Address.
    
    Specified by:
    
    asInet6Address in interface ClickHouseValue
    
    Returns:
    
    IPv6 address, could be null
  - asObject
```
public Object asObject()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as an object.
    
    Specified by:
    
    asObject in interface ClickHouseValue
    
    Returns:
    
    an object representing the value, could be null
  - asString
```
public String asString()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as unbounded string, using default charset(usually UTF-8).
    
    Specified by:
    
    asString in interface ClickHouseValue
    
    Returns:
    
    string value, could be null
  - asString
```
public String asString(int length,
                       Charset charset)
```
    Description copied from interface: ClickHouseValue
    
    Gets value as fixed length(in bytes) string.
    
    Specified by:
    
    asString in interface ClickHouseValue
    
    Parameters:
    
    length - byte length of the string, 0 or negative number means unbounded
    
    charset - charset, null is same as default(UTF-8)
    
    Returns:
    
    string value, could be null
  - asUuid
```
public UUID asUuid()
```
    Description copied from interface: ClickHouseValue
    
    Gets value as UUID.
    
    Specified by:
    
    asUuid in interface ClickHouseValue
    
    Returns:
    
    uuid, could be null
  - resetToNullOrEmpty
```
public ClickHouseStringValue resetToNullOrEmpty()
```
    Description copied from interface: ClickHouseValue
    
    Resets value to null, or empty when null is not supported(e.g. Array, Tuple and Map etc.).
    Keep in mind that String is value-based type, so this method will change its value to null instead of an empty string.
    
    Specified by:
    
    resetToNullOrEmpty in interface ClickHouseValue
    
    Returns:
    
    this object
  - toSqlExpression
```
public String toSqlExpression()
```
    Description copied from interface: ClickHouseValue
    
    Converts the value to escaped SQL expression. For example, number 123 will be converted to 123, while string "12'3" will be converted to @{code '12\'3'}.
    
    Specified by:
    
    toSqlExpression in interface ClickHouseValue
    
    Returns:
    
    escaped SQL expression
  - update
```
public ClickHouseStringValue update(boolean value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(char value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(byte value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(short value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(int value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(long value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(float value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(double value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseValue update(BigInteger value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseValue update(BigDecimal value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(Enum<?> value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(Inet4Address value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(Inet6Address value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(LocalDate value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(LocalTime value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(LocalDateTime value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(String value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(UUID value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(ClickHouseValue value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value.
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update
    
    Returns:
    
    this object
  - update
```
public ClickHouseStringValue update(Object value)
```
    Description copied from interface: ClickHouseValue
    
    Updates value. This method tries to identify type of value and then use corresponding update method to proceed. Unknown value will be passed to ClickHouseValue.updateUnknown(Object).
    
    Specified by:
    
    update in interface ClickHouseValue
    
    Parameters:
    
    value - value to update, could be null
    
    Returns:
    
    this object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class ClickHouseStringValue

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface com.clickhouse.client.ClickHouseValue

Constructor Detail

ClickHouseStringValue

Method Detail

ofNull

ofNull

of

of

set

getValue

copy

isNullOrEmpty

asBoolean

asByte

asShort

asInteger

asLong

asBigInteger

asFloat

asDouble

asBigDecimal

asDate

asTime

asDateTime

asEnum

asInet4Address

asInet6Address

asObject

asString

asString

asUuid

resetToNullOrEmpty

toSqlExpression

update

update

update

update

update

update

update

update

update

update

update

update

update

update

update

update

update

update

update

update

equals

hashCode

toString