Top Description Fields Constructors Methods
org.h2.expression.function

public final Class LengthFunction

extends Function1
Class Inheritance
Imports
org.h2.engine.SessionLocal, org.h2.expression.Expression, .TypedValueExpression, org.h2.message.DbException, org.h2.value.TypeInfo, .Value, .ValueBigint, .ValueNull
CHAR_LENGTH(), or OCTET_LENGTH() function.

Field Summary

Modifier and TypeField and Description
public static final int
BIT_LENGTH

BIT_LENGTH() (non-standard).

public static final int
CHAR_LENGTH

CHAR_LENGTH().

private final int
function

private static final String[]
NAMES

public static final int
OCTET_LENGTH

OCTET_LENGTH().

Constructor Summary

AccessConstructor and Description
public
LengthFunction(Expression arg, int function)

Method Summary

Modifier and TypeMethod and Description
public String
getName()

Implements org.h2.expression.function.NamedExpression.getName.

Get the name.

public Value
getValue(SessionLocal
the session
session)

Implements abstract org.h2.expression.Expression.getValue.

Return the resulting value for the current row.

public Expression
optimize(SessionLocal
the session
session)

Implements abstract org.h2.expression.Expression.optimize.

Try to optimize the expression.

Inherited from org.h2.expression.function.Function1:
getUnenclosedSQL

Field Detail

BIT_LENGTHback to summary
public static final int BIT_LENGTH

BIT_LENGTH() (non-standard).

CHAR_LENGTHback to summary
public static final int CHAR_LENGTH

CHAR_LENGTH().

functionback to summary
private final int function
NAMESback to summary
private static final String[] NAMES
OCTET_LENGTHback to summary
public static final int OCTET_LENGTH

OCTET_LENGTH().

Constructor Detail

LengthFunctionback to summary
public LengthFunction(Expression arg, int function)

Method Detail

getNameback to summary
public String getName()

Implements org.h2.expression.function.NamedExpression.getName.

Doc from org.h2.expression.function.NamedExpression.getName.

Get the name.

Returns:String

the name in uppercase

Annotations
@Override
getValueback to summary
public Value getValue(SessionLocal session)

Implements abstract org.h2.expression.Expression.getValue.

Doc from org.h2.expression.Expression.getValue.

Return the resulting value for the current row.

Parameters
session:SessionLocal

the session

Returns:Value

the result

Annotations
@Override
optimizeback to summary
public Expression optimize(SessionLocal session)

Implements abstract org.h2.expression.Expression.optimize.

Doc from org.h2.expression.Expression.optimize.

Try to optimize the expression.

Parameters
session:SessionLocal

the session

Returns:Expression

the optimized expression

Annotations
@Override