org.h2.value

Class ValueResultSet

java.lang.Object

org.h2.value.Value

org.h2.value.ValueResultSet

public class ValueResultSet
extends Value

Implementation of the RESULT_SET 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 v, 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 ValueResultSet	get(ResultSet rs) Create a result set value for the given result set.
static ValueResultSet	getCopy(ResultSet rs, int maxrows) Create a result set value for the given result set.
int	getDisplaySize() Get the display size in characters.
Object	getObject() Get the value as an object.
long	getPrecision() Get the precision.
ResultSet	getResultSet()
String	getSQL() Get the SQL expression for this value.
String	getString() Get the value as a string.
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, getMemory, getReader, getScale, getShort, getSignum, getSmall, getTableId, getTime, getTimestamp, getTraceSQL, 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 ValueResultSet get(ResultSet rs)

Create a result set value for the given result set. The result set will be wrapped.

Parameters:

rs - the result set

Returns:

the value

getCopy

public static ValueResultSet getCopy(ResultSet rs,
                     int maxrows)

Create a result set value for the given result set. The result set will be fully read in memory. The original result set is not closed.

Parameters:

rs - the result set

maxrows - the maximum number of rows to read (0 to just read the meta data)

Returns:

the value

getType

public int getType()

Description copied from class: Value

Get the value type.

Specified by:

getType in class Value

Returns:

the type

getPrecision

public long getPrecision()

Description copied from class: Value

Get the precision.

Specified by:

getPrecision in class Value

Returns:

the precision

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

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 v,
                CompareMode mode)

Description copied from class: Value

Compare the value with another value of the same type.

Specified by:

compareSecure in class Value

Parameters:

v - the other value

mode - the compare mode

Returns:

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

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

hashCode

public int hashCode()

Specified by:

hashCode in class Value

getObject

public Object getObject()

Description copied from class: Value

Get the value as an object.

Specified by:

getObject in class Value

Returns:

the object

getResultSet

public ResultSet getResultSet()

Overrides:

getResultSet in class Value

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

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