Package com.exasol.adapter.sql

Class SqlFunctionScalar

java.lang.Object

com.exasol.adapter.sql.SqlNode

com.exasol.adapter.sql.SqlFunctionScalar

public class SqlFunctionScalar
extends SqlNode

A simple scalar function with a name and zero or more arguments.

Scalar functions that are more complex, like CASE or CAST, are defined in separate classes.

Constructor Summary

Constructors

Constructor	Description
SqlFunctionScalar(ScalarFunction function, List<SqlNode> arguments, boolean isInfix, boolean isPrefix)

Method Summary

Modifier and Type	Method	Description
<R> R	accept(SqlNodeVisitor<R> visitor)	See SqlNodeVisitor
List<SqlNode>	getArguments()
ScalarFunction	getFunction()
String	getFunctionName()
int	getNumArgs()
SqlNodeType	getType()
boolean	isInfix()
boolean	isPrefix()
String	toSimpleSql()

Methods inherited from class com.exasol.adapter.sql.SqlNode

getParent, hasParent, setParent

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlFunctionScalar

public SqlFunctionScalar(ScalarFunction function,
                         List<SqlNode> arguments,
                         boolean isInfix,
                         boolean isPrefix)

Method Detail

getArguments

public List<SqlNode> getArguments()

getFunction

public ScalarFunction getFunction()

getFunctionName

public String getFunctionName()

getNumArgs

public int getNumArgs()

isInfix

public boolean isInfix()

isPrefix

public boolean isPrefix()

toSimpleSql

public String toSimpleSql()

Specified by:

toSimpleSql in class SqlNode

Returns:

A SQL representation of the current graph, using EXASOL SQL syntax. It is called "SIMPLE" because it is not guaranteed to be 100 % correct SQL (e.g. might be ambiguous).

getType

public SqlNodeType getType()

Specified by:

getType in class SqlNode

accept

public <R> R accept(SqlNodeVisitor<R> visitor)
             throws AdapterException

Description copied from class: SqlNode

See SqlNodeVisitor

Specified by:

accept in class SqlNode

Type Parameters:

R - generic SqlNodeVisitor type

Parameters:

visitor - The visitor object on which the appropriate visit(sqlNode) method is called

Returns:

visited object

Throws:

AdapterException - can be thrown