org.h2.value

Class ValueArray

java.lang.Object

org.h2.value.Value

org.h2.value.ValueArray

public class ValueArray
extends Value

Implementation of the ARRAY data type.

Nested Class Summary

Nested classes/interfaces inherited from class org.h2.value.Value

Value.ValueBlob, Value.ValueClob

Field Summary

Fields inherited from class org.h2.value.Value

ARRAY, BLOB, BOOLEAN, BYTE, BYTES, CLOB, DATE, DECIMAL, DOUBLE, FLOAT, INT, JAVA_OBJECT, LONG, NULL, RESULT_SET, SHORT, STRING, STRING_FIXED, STRING_IGNORECASE, TIME, TIMESTAMP, TYPE_COUNT, UNKNOWN, UUID

Method Summary

Methods

Modifier and Type	Method and Description
protected int	compareSecure(Value o, CompareMode mode) Compare the value with another value of the same type.
Value	convertPrecision(long precision, boolean force) Convert the precision to the requested value.
boolean	equals(Object other) Check if the two values have the same hash code.
static ValueArray	get(Class<?> componentType, Value[] list) Get or create a array value for the given value array.
static ValueArray	get(Value[] list) Get or create a array value for the given value array.
Class<?>	getComponentType()
int	getDisplaySize() Get the display size in characters.
Value[]	getList()
int	getMemory() Get the memory used by this object.
Object	getObject() Get the value as an object.
long	getPrecision() Get the precision.
String	getSQL() Get the SQL expression for this value.
String	getString() Get the value as a string.
String	getTraceSQL() Get a medium size SQL expression for debugging or tracing.
int	getType() Get the value type.
int	hashCode()
void	set(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, close, compareTo, compareTypeSave, convertScale, convertTo, copyToTemp, divide, getBigDecimal, getBoolean, getByte, getBytes, getBytesNoCopy, getDate, getDouble, getFloat, getHigherOrder, getInputStream, getInt, getLong, getReader, getResultSet, getScale, getShort, getSignum, getSmall, getTableId, getTime, getTimestamp, isFileBased, isLinked, link, modulus, multiply, negate, subtract, throwUnsupportedExceptionForType, toString, unlink

Methods inherited from class java.lang.Object

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

Method Detail

get

public static ValueArray get(Value[] list)

Get or create a array value for the given value array. Do not clone the data.

Parameters:

list - the value array

Returns:

the value

get

public static ValueArray get(Class<?> componentType,
             Value[] list)

Get or create a array value for the given value array. Do not clone the data.

Parameters:

componentType - the array class (null for Object[])

list - the value array

Returns:

the value

hashCode

public int hashCode()

Specified by:

hashCode in class Value

getList

public Value[] getList()

getType

public int getType()

Description copied from class: Value

Get the value type.

Specified by:

getType in class Value

Returns:

the type

getComponentType

public Class<?> getComponentType()

getPrecision

public long getPrecision()

Description copied from class: Value

Get the precision.

Specified by:

getPrecision in class Value

Returns:

the precision

getString

public String getString()

Description copied from class: Value

Get the value as a string.

Specified by:

getString in class Value

Returns:

the string

compareSecure

protected int compareSecure(Value o,
                CompareMode mode)

Description copied from class: Value

Compare the value with another value of the same type.

Specified by:

compareSecure in class Value

Parameters:

o - the other value

mode - the compare mode

Returns:

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

getObject

public Object getObject()

Description copied from class: Value

Get the value as an object.

Specified by:

getObject in class Value

Returns:

the object

set

public void set(PreparedStatement prep,
       int parameterIndex)

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

getSQL

public String getSQL()

Description copied from class: Value

Get the SQL expression for this value.

Specified by:

getSQL in class Value

Returns:

the SQL expression

getTraceSQL

public String getTraceSQL()

Description copied from class: Value

Get a medium size SQL expression for debugging or tracing. If the precision is too large, only a subset of the value is returned.

Overrides:

getTraceSQL in class Value

Returns:

the SQL expression

getDisplaySize

public int getDisplaySize()

Description copied from class: Value

Get the display size in characters.

Specified by:

getDisplaySize in class Value

Returns:

the display size

equals

public boolean equals(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

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

convertPrecision

public Value convertPrecision(long precision,
                     boolean force)

Description copied from class: Value

Convert the precision to the requested value. The precision of the returned value may be somewhat larger than requested, because values with a fixed precision are not truncated.

Overrides:

convertPrecision in class Value

Parameters:

precision - the new precision

force - true if losing numeric precision is allowed

Returns:

the new value