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

public final Class MathFunction2

extends Function2
Class Inheritance
Imports
org.h2.engine.SessionLocal, org.h2.expression.Expression, .TypedValueExpression, org.h2.message.DbException, org.h2.value.TypeInfo, .Value, .ValueDouble
A math function with two arguments and DOUBLE PRECISION result.

Field Summary

Modifier and TypeField and Description
public static final int
ATAN2

ATAN2() (non-standard).

private final int
function

public static final int
LOG

LOG().

private static final String[]
NAMES

public static final int
POWER

POWER().

Constructor Summary

AccessConstructor and Description
public
MathFunction2(Expression arg1, Expression arg2, 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, Value
the value of first argument
v1, Value
the value of second argument
v2)

Overrides org.h2.expression.function.Function2.getValue.

Returns the value of this function.

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.Function2:
getUnenclosedSQLgetValue

Field Detail

ATAN2back to summary
public static final int ATAN2

ATAN2() (non-standard).

functionback to summary
private final int function
LOGback to summary
public static final int LOG

LOG().

NAMESback to summary
private static final String[] NAMES
POWERback to summary
public static final int POWER

POWER().

Constructor Detail

MathFunction2back to summary
public MathFunction2(Expression arg1, Expression arg2, 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, Value v1, Value v2)

Overrides org.h2.expression.function.Function2.getValue.

Doc from org.h2.expression.function.Function2.getValue.

Returns the value of this function.

Parameters
session:SessionLocal

the session

v1:Value

the value of first argument

v2:Value

the value of second argument

Returns:Value

the resulting value

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