com.exasol.sql.expression.function

Class AbstractFunction

java.lang.Object

com.exasol.sql.expression.function.AbstractFunction

All Implemented Interfaces:

Function, ValueExpression

Direct Known Subclasses:

CastExasolFunction, ExasolFunction, ExasolUdf

public abstract class AbstractFunction
extends Object
implements Function

This is a base class for functions.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	functionName
protected List<ValueExpression>	parameters

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractFunction(String functionName, List<ValueExpression> parameters) Create a new instance using AbstractFunction.

Method Summary

Modifier and Type	Method and Description
void	accept(ValueExpressionVisitor visitor) Accept a visitor
String	getFunctionName() Get a function's name.
List<ValueExpression>	getParameters() Get the value expressions (parameters of the function)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.exasol.sql.expression.function.Function

accept, hasParenthesis

Field Detail

functionName

protected String functionName

parameters

protected List<ValueExpression> parameters

Constructor Detail

AbstractFunction

protected AbstractFunction(String functionName,
                           List<ValueExpression> parameters)

Create a new instance using AbstractFunction.

Parameters:

functionName - name of a function

parameters - zero or more value expressions

Method Detail

getFunctionName

public String getFunctionName()

Description copied from interface: Function

Get a function's name.

Specified by:

getFunctionName in interface Function

Returns:

function's name

getParameters

public List<ValueExpression> getParameters()

Get the value expressions (parameters of the function)

Returns:

list of value expressions

accept

public final void accept(ValueExpressionVisitor visitor)

Description copied from interface: ValueExpression

Accept a visitor

Specified by:

accept in interface ValueExpression

Parameters:

visitor - visitor to accept