org.mmbase.util.transformers
Class Sql

java.lang.Object
  |
  +--org.mmbase.util.transformers.AbstractTransformer
        |
        +--org.mmbase.util.transformers.Sql

All Implemented Interfaces:

CharTransformer, Transformer

public class Sql

extends AbstractTransformer

implements CharTransformer

Encodings related to Sql. It can escape quotes, by replacing them by double quotes, as is needed in SQL statements.

Author:

Michiel Meeuwissen

Fields inherited from class org.mmbase.util.transformers.AbstractTransformer

to

Constructor Summary

Sql()

Method Summary

java.lang.String	getEncoding() Returns the encoding that is currently active
static java.lang.String	singlequote(java.lang.String str) Escapes single quotes in a string.
java.io.Writer	transform(java.io.Reader r)
java.lang.String	transform(java.lang.String r)
java.io.Writer	transformBack(java.io.Reader r)
java.lang.String	transformBack(java.lang.String r)
java.util.Map	transformers() Used when registering this class as a possible Transformer

Methods inherited from class org.mmbase.util.transformers.AbstractTransformer

configure

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mmbase.util.transformers.Transformer

configure

Constructor Detail

Sql

public Sql()

Method Detail

singlequote

public static java.lang.String singlequote(java.lang.String str)

Escapes single quotes in a string. Escaping is done by doubling any quotes encountered. Strings that are rendered in such way can more easily be included in a SQL query.

Parameters:

str - the string to escape

Returns:

the escaped string

transformers

public java.util.Map transformers()

Used when registering this class as a possible Transformer

Specified by:

transformers in interface Transformer

Overrides:

transformers in class AbstractTransformer

Following copied from interface: org.mmbase.util.transformers.Transformer

Returns:

A Map with String Integer/Class pairs.

transform

public java.io.Writer transform(java.io.Reader r)

Specified by:

transform in interface CharTransformer

transformBack

public java.io.Writer transformBack(java.io.Reader r)

Specified by:

transformBack in interface CharTransformer

transform

public java.lang.String transform(java.lang.String r)

Specified by:

transform in interface CharTransformer

transformBack

public java.lang.String transformBack(java.lang.String r)

Specified by:

transformBack in interface CharTransformer

getEncoding

public java.lang.String getEncoding()

Description copied from interface: Transformer

Returns the encoding that is currently active

Specified by:

getEncoding in interface Transformer

Following copied from interface: org.mmbase.util.transformers.Transformer

Returns:

An String representing the coding that is currently used.