org.h2.value

Class ValueJson

java.lang.Object

org.h2.value.VersionedValue

org.h2.value.Value

org.h2.value.ValueJson

public class ValueJson
extends Value

Implementation of the JSON data type.

Field Summary

Fields

Modifier and Type	Field and Description
static ValueJson	FALSE false JSON value.
static ValueJson	NULL null JSON value.
static ValueJson	TRUE true JSON value.
static ValueJson	ZERO 0 JSON value.

Fields inherited from class org.h2.value.Value

ARRAY, BLOB, BOOLEAN, BYTE, BYTES, CLOB, DATE, DECIMAL, DOUBLE, ENUM, FLOAT, GEOMETRY, INT, INTERVAL_DAY, INTERVAL_DAY_TO_HOUR, INTERVAL_DAY_TO_MINUTE, INTERVAL_DAY_TO_SECOND, INTERVAL_HOUR, INTERVAL_HOUR_TO_MINUTE, INTERVAL_HOUR_TO_SECOND, INTERVAL_MINUTE, INTERVAL_MINUTE_TO_SECOND, INTERVAL_MONTH, INTERVAL_SECOND, INTERVAL_YEAR, INTERVAL_YEAR_TO_MONTH, JAVA_OBJECT, JSON, LONG, MIN_LONG_DECIMAL, RESULT_SET, ROW, SHORT, STRING, STRING_FIXED, STRING_IGNORECASE, TIME, TIME_TZ, TIMESTAMP, TIMESTAMP_TZ, TYPE_COUNT, UNKNOWN, UUID

Fields inherited from class org.h2.value.VersionedValue

DUMMY

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTypeSafe(Value v, CompareMode mode, CastDataProvider provider) Compare this value against another value given that the values are of the same data type.
boolean	equals(java.lang.Object other) Check if the two values have the same hash code.
static ValueJson	fromJson(byte[] bytes) Returns JSON value with the specified content.
static ValueJson	fromJson(java.lang.String s) Returns JSON value with the specified content.
static ValueJson	get(java.math.BigDecimal number) Returns JSON value with the specified numeric content.
static ValueJson	get(boolean bool) Returns JSON value with the specified boolean content.
static ValueJson	get(int number) Returns JSON value with the specified numeric content.
static ValueJson	get(long number) Returns JSON value with the specified numeric content.
static ValueJson	get(java.lang.String string) Returns JSON value with the specified string content.
byte[]	getBytes()
byte[]	getBytesNoCopy()
static ValueJson	getInternal(byte[] bytes) Returns JSON value with the specified content.
JSONItemType	getItemType() Returns JSON item type.
int	getMemory() Get the memory used by this object.
java.lang.Object	getObject() Get the value as an object.
java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder) Appends the SQL expression for this value to the specified builder.
java.lang.String	getString() Get the value as a string.
TypeInfo	getType() Returns the data type.
int	getValueType() Get the value type.
int	hashCode()
void	set(java.sql.PreparedStatement prep, int parameterIndex) Set the value as a parameter in a prepared statement.

Methods inherited from class org.h2.value.Value

add, checkPrecision, clearCache, compareTo, compareWithNull, containsNull, convertPrecision, convertScale, convertTo, convertTo, convertTo, convertTo, convertToInt, copy, copyToResult, copyToTemp, divide, getBigDecimal, getBoolean, getByte, getDataHandler, getDate, getDouble, getFloat, getHigherOrder, getHigherType, getInputStream, getInputStream, getInt, getLong, getReader, getReader, getResult, getShort, getSignum, getSmall, getSQL, getTableId, getTime, getTimestamp, getTraceSQL, getUnsupportedExceptionForOperation, isLinkedToTable, modulus, multiply, negate, remove, subtract, toString

Methods inherited from class org.h2.value.VersionedValue

getCommittedValue, getCurrentValue, getOperationId, isCommitted

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NULL

public static final ValueJson NULL

null JSON value.

TRUE

public static final ValueJson TRUE

true JSON value.

FALSE

public static final ValueJson FALSE

false JSON value.

ZERO

public static final ValueJson ZERO

0 JSON value.

Method Detail

getSQL

public java.lang.StringBuilder getSQL(java.lang.StringBuilder builder)

Description copied from class: Value

Appends the SQL expression for this value to the specified builder.

Specified by:

getSQL in class Value

Parameters:

builder - string builder

Returns:

the specified string builder

getType

public TypeInfo getType()

Description copied from class: Value

Returns the data type.

Specified by:

getType in class Value

Returns:

the data type

getValueType

public int getValueType()

Description copied from class: Value

Get the value type.

Specified by:

getValueType in class Value

Returns:

the value type

getString

public java.lang.String getString()

Description copied from class: Value

Get the value as a string.

Specified by:

getString in class Value

Returns:

the string

getBytes

public byte[] getBytes()

Overrides:

getBytes in class Value

getBytesNoCopy

public byte[] getBytesNoCopy()

Overrides:

getBytesNoCopy in class Value

getObject

public java.lang.Object getObject()

Description copied from class: Value

Get the value as an object.

Specified by:

getObject in class Value

Returns:

the object

getItemType

public JSONItemType getItemType()

Returns JSON item type.

Returns:

JSON item type

getMemory

public int getMemory()

Description copied from class: Value

Get the memory used by this object.

Overrides:

getMemory in class Value

Returns:

the memory used in bytes

set

public void set(java.sql.PreparedStatement prep,
       int parameterIndex)
         throws java.sql.SQLException

Description copied from class: Value

Set the value as a parameter in a prepared statement.

Specified by:

set in class Value

Parameters:

prep - the prepared statement

parameterIndex - the parameter index

Throws:

java.sql.SQLException

hashCode

public int hashCode()

Specified by:

hashCode in class Value

equals

public boolean equals(java.lang.Object other)

Description copied from class: Value

Check if the two values have the same hash code. No data conversion is made; this method returns false if the other object is not of the same class. For some values, compareTo may return 0 even if equals return false. Example: ValueDecimal 0.0 and 0.00.

Specified by:

equals in class Value

Parameters:

other - the other value

Returns:

true if they are equal

compareTypeSafe

public int compareTypeSafe(Value v,
                  CompareMode mode,
                  CastDataProvider provider)

Description copied from class: Value

Compare this value against another value given that the values are of the same data type.

Specified by:

compareTypeSafe in class Value

Parameters:

v - the other value

mode - the compare mode

provider - the cast information provider

Returns:

0 if both values are equal, -1 if the other value is smaller, and 1 otherwise

fromJson

public static ValueJson fromJson(java.lang.String s)

Returns JSON value with the specified content.

Parameters:

s - JSON representation, will be normalized

Returns:

JSON value

Throws:

DbException - on invalid JSON

fromJson

public static ValueJson fromJson(byte[] bytes)

Returns JSON value with the specified content.

Parameters:

bytes - JSON representation, will be normalized

Returns:

JSON value

Throws:

DbException - on invalid JSON

get

public static ValueJson get(boolean bool)

Returns JSON value with the specified boolean content.

Parameters:

bool - boolean value

Returns:

JSON value

get

public static ValueJson get(int number)

Returns JSON value with the specified numeric content.

Parameters:

number - integer value

Returns:

JSON value

get

public static ValueJson get(long number)

Returns JSON value with the specified numeric content.

Parameters:

number - long value

Returns:

JSON value

get

public static ValueJson get(java.math.BigDecimal number)

Returns JSON value with the specified numeric content.

Parameters:

number - big decimal value

Returns:

JSON value

get

public static ValueJson get(java.lang.String string)

Returns JSON value with the specified string content.

Parameters:

string - string value

Returns:

JSON value

getInternal

public static ValueJson getInternal(byte[] bytes)

Returns JSON value with the specified content.

Parameters:

bytes - normalized JSON representation

Returns:

JSON value