Function2

java.lang.Object
- org.h2.expression.Expression
- - org.h2.expression.Operation2
  - - org.h2.expression.function.Function2

All Implemented Interfaces:

NamedExpression, HasSQL, Typed

Direct Known Subclasses:

MathFunction2, NullIfFunction, SetFunction, SignalFunction, StringFunction2
```
public abstract class Function2
extends Operation2
implements NamedExpression
```
Function with two arguments.

Field Summary
- 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
Modifier Constructor Description

protected Function2(Expression left, Expression right)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.StringBuilder`	`getUnenclosedSQL(java.lang.StringBuilder builder, int sqlFlags)`	Get the SQL statement of this expression.
`Value`	`getValue(SessionLocal session)`	Return the resulting value for the current row.
`protected Value`	`getValue(SessionLocal session, Value v1, Value v2)`	Returns the value of this function.

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, optimize, 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

Methods inherited from interface org.h2.expression.function.NamedExpression
getName

- Constructor Detail
  - Function2
```
protected Function2(Expression left,
                    Expression right)
```
- Method Detail
  - getValue
```
public Value getValue(SessionLocal session)
```
    Description copied from class: Expression
    
    Return the resulting value for the current row.
    
    Specified by:
    
    getValue in class Expression
    
    Parameters:
    
    session - the session
    
    Returns:
    
    the result
  - getValue
```
protected Value getValue(SessionLocal session,
                         Value v1,
                         Value v2)
```
    Returns the value of this function.
    
    Parameters:
    
    session - the session
    
    v1 - the value of first argument
    
    v2 - the value of second argument
    
    Returns:
    
    the resulting value
  - getUnenclosedSQL
```
public java.lang.StringBuilder getUnenclosedSQL(java.lang.StringBuilder builder,
                                                int sqlFlags)
```
    Description copied from class: Expression
    
    Get the SQL statement of this expression. This may not always be the original SQL statement, especially after optimization. Enclosing '(' and ')' are never appended.
    
    Specified by:
    
    getUnenclosedSQL in class Expression
    
    Parameters:
    
    builder - string builder
    
    sqlFlags - formatting flags
    
    Returns:
    
    the specified string builder