Package org.datanucleus.store.rdbms.sql.method

Class StringLengthMethod

java.lang.Object

org.datanucleus.store.rdbms.sql.method.StringLengthMethod

All Implemented Interfaces:

SQLMethod

public class StringLengthMethod
extends Object
implements SQLMethod

Expression handler to evaluate {stringExpression}.length(). Returns a NumericExpression

CHAR_LENGTH({stringExpr})

.

Constructor Summary

Constructors

Constructor	Description
StringLengthMethod()

Method Summary

Modifier and Type	Method	Description
SQLExpression	getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args)	Return the expression for this SQL function.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringLengthMethod

public StringLengthMethod()

Method Detail

getExpression

public SQLExpression getExpression(SQLStatement stmt,
                                   SQLExpression expr,
                                   List<SQLExpression> args)

Description copied from interface: SQLMethod

Return the expression for this SQL function.

Specified by:

getExpression in interface SQLMethod

Parameters:

stmt - SQLStatement that this expression is for

expr - The expression that it is invoked on

args - Arguments passed in

Returns:

The SQL expression using the SQL function