com.feedzai.commons.sql.abstraction.dml

Class Function

java.lang.Object

com.feedzai.commons.sql.abstraction.dml.Expression

com.feedzai.commons.sql.abstraction.dml.Function

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

InternalFunction

public class Function
extends Expression

Represents SQL functions.

Since:

2.0.0

Author:

Rui Vilao (rui.vilao@feedzai.com)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	AVG The AVG function.
static String	COUNT The COUNT function.
static Set<String>	FUNCTIONS The list of functions.
static String	LOWER The LOWER function.
static String	MAX The MAX function.
static String	MIN The MIN function.
static String	STDDEV The STDDEV function.
static String	SUM The SUM function.
static String	UPPER The UPPER function.

Fields inherited from class com.feedzai.commons.sql.abstraction.dml.Expression

alias, enclosed, joins, ordering, properties, quotes, translator, withNoLock

Constructor Summary

Constructors

Constructor and Description
Function(String function) Creates a new instance of Function.
Function(String function, Expression exp) Creates a new instance of Function.

Method Summary

Methods

Modifier and Type	Method and Description
Expression	getExp() Gets the expression in the function.
String	getFunction() Gets the function.
boolean	isUDF() Checks if this function is a UDF.
String	translate() Translates the expression.

Methods inherited from class com.feedzai.commons.sql.abstraction.dml.Expression

alias, asc, desc, enclose, fullOuterJoin, getAlias, getJoins, getOrdering, innerJoin, isAliased, isEnclosed, isQuote, isQuotes, isWithNoLock, leftOuterJoin, rightOuterJoin, unquote, withNoLock

Methods inherited from class java.lang.Object

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

Field Detail

MAX

public static final String MAX

The MAX function.

See Also:

Constant Field Values

MIN

public static final String MIN

The MIN function.

See Also:

Constant Field Values

AVG

public static final String AVG

The AVG function.

See Also:

Constant Field Values

COUNT

public static final String COUNT

The COUNT function.

See Also:

Constant Field Values

STDDEV

public static final String STDDEV

The STDDEV function.

See Also:

Constant Field Values

SUM

public static final String SUM

The SUM function.

See Also:

Constant Field Values

UPPER

public static final String UPPER

The UPPER function.

See Also:

Constant Field Values

LOWER

public static final String LOWER

The LOWER function.

See Also:

Constant Field Values

FUNCTIONS

public static final Set<String> FUNCTIONS

The list of functions.

Constructor Detail

Function

public Function(String function)

Creates a new instance of Function.

Parameters:

function - The function.

Function

public Function(String function,
        Expression exp)

Creates a new instance of Function.

Parameters:

function - The function.

exp - The expression.

Method Detail

getFunction

public String getFunction()

Gets the function.

Returns:

The function.

getExp

public Expression getExp()

Gets the expression in the function.

Returns:

The expression in the function.

translate

public String translate()

Description copied from class: Expression

Translates the expression.

Specified by:

translate in class Expression

Returns:

A translation of the implementing expression.

isUDF

public boolean isUDF()

Checks if this function is a UDF.

Returns:

true if the function is user defined, false otherwise.