org.datanucleus.store.rdbms.sql.method

Class StringLength2Method

java.lang.Object

org.datanucleus.store.rdbms.sql.method.StringLength2Method

All Implemented Interfaces:

SQLMethod

public class StringLength2Method
extends Object
implements SQLMethod

Expression handler to evaluate {stringExpression}.length() with Firebird. Firebird v1 uses STRLEN, whereas Firebird v2 has CHAR_LENGTH. Returns a NumericExpression

STRLEN({stringExpr})

or NumericExpression

CHAR_LENGTH({stringExpr})

.

Constructor Summary

Constructors

Constructor and Description
StringLength2Method()

Method Summary

Modifier and Type	Method and 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

StringLength2Method

public StringLength2Method()

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