Package org.h2.expression.function
Class MathFunction2
- java.lang.Object
-
- org.h2.expression.Expression
-
- org.h2.expression.Operation2
-
- org.h2.expression.function.Function2
-
- org.h2.expression.function.MathFunction2
-
- All Implemented Interfaces:
NamedExpression
,HasSQL
,Typed
public final class MathFunction2 extends Function2
A math function with two arguments and DOUBLE PRECISION result.
-
-
Field Summary
Fields Modifier and Type Field Description static int
ATAN2
ATAN2() (non-standard).private int
function
static int
LOG
LOG().private static java.lang.String[]
NAMES
static int
POWER
POWER().-
Fields inherited from class org.h2.expression.Operation2
left, right, type
-
Fields inherited from class org.h2.expression.Expression
AUTO_PARENTHESES, MAP_IN_AGGREGATE, MAP_IN_WINDOW, MAP_INITIAL, WITH_PARENTHESES, WITHOUT_PARENTHESES
-
Fields inherited from interface org.h2.util.HasSQL
ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS
-
-
Constructor Summary
Constructors Constructor Description MathFunction2(Expression arg1, Expression arg2, int function)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getName()
Get the name.Value
getValue(SessionLocal session, Value v1, Value v2)
Returns the value of this function.Expression
optimize(SessionLocal session)
Try to optimize the expression.-
Methods inherited from class org.h2.expression.function.Function2
getUnenclosedSQL, getValue
-
Methods inherited from class org.h2.expression.Operation2
getCost, getSubexpression, getSubexpressionCount, getType, isEverything, mapColumns, setEvaluatable, updateAggregate
-
Methods inherited from class org.h2.expression.Expression
addFilterConditions, createIndexConditions, getAlias, getBooleanValue, getColumnName, getColumnNameForView, getEnclosedSQL, getNonAliasExpression, getNotIfPossible, getNullable, getSchemaName, getSQL, getSQL, getSQL, getSQL, getTableAlias, getTableName, getWhenSQL, getWhenValue, isConstant, isIdentity, isNullConstant, isValueSet, isWhenConditionOperand, needParentheses, optimizeCondition, toString, writeExpressions, writeExpressions
-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
-
Methods inherited from interface org.h2.util.HasSQL
getTraceSQL
-
-
-
-
Field Detail
-
ATAN2
public static final int ATAN2
ATAN2() (non-standard).- See Also:
- Constant Field Values
-
LOG
public static final int LOG
LOG().- See Also:
- Constant Field Values
-
POWER
public static final int POWER
POWER().- See Also:
- Constant Field Values
-
NAMES
private static final java.lang.String[] NAMES
-
function
private final int function
-
-
Constructor Detail
-
MathFunction2
public MathFunction2(Expression arg1, Expression arg2, int function)
-
-
Method Detail
-
getValue
public Value getValue(SessionLocal session, Value v1, Value v2)
Description copied from class:Function2
Returns the value of this function.
-
optimize
public Expression optimize(SessionLocal session)
Description copied from class:Expression
Try to optimize the expression.- Specified by:
optimize
in classExpression
- Parameters:
session
- the session- Returns:
- the optimized expression
-
getName
public java.lang.String getName()
Description copied from interface:NamedExpression
Get the name.- Returns:
- the name in uppercase
-
-