org.apache.calcite.util

Class XmlOutput.StringEscaper

java.lang.Object

org.apache.calcite.util.XmlOutput.StringEscaper

All Implemented Interfaces:

Cloneable

Enclosing class:

XmlOutput

static class XmlOutput.StringEscaper
extends Object
implements Cloneable

Utility for replacing special characters with escape sequences in strings.

A StringEscaper starts out as an identity transform in the "mutable" state. Call defineEscape(char, java.lang.String) as many times as necessary to set up mappings, and then call makeImmutable() before actually applying the defined transform. Or, use one of the global mappings pre-defined here.

Field Summary

Fields

Modifier and Type	Field and Description
static XmlOutput.StringEscaper	HTML_ESCAPER
private String[]	translationTable
private ArrayList<String>	translationVector
static XmlOutput.StringEscaper	URL_ARG_ESCAPER
static XmlOutput.StringEscaper	URL_ESCAPER
static XmlOutput.StringEscaper	XML_ESCAPER
static XmlOutput.StringEscaper	XML_NUMERIC_ESCAPER

Constructor Summary

Constructors

Constructor and Description
StringEscaper() Identity transform

Method Summary

Modifier and Type	Method and Description
protected XmlOutput.StringEscaper	clone()
void	defineEscape(char from, String to) Map character "from" to escape sequence "to"
String	escapeString(String s) Apply an immutable transformation to the given string.
XmlOutput.StringEscaper	getMutableClone() Create a mutable escaper from an existing escaper, which may already be immutable.
void	makeImmutable() Call this before attempting to escape strings; after this, defineEscape may not be called again.

Methods inherited from class java.lang.Object

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

Field Detail

translationVector

private ArrayList<String> translationVector

translationTable

private String[] translationTable

XML_ESCAPER

public static final XmlOutput.StringEscaper XML_ESCAPER

XML_NUMERIC_ESCAPER

public static final XmlOutput.StringEscaper XML_NUMERIC_ESCAPER

HTML_ESCAPER

public static final XmlOutput.StringEscaper HTML_ESCAPER

URL_ARG_ESCAPER

public static final XmlOutput.StringEscaper URL_ARG_ESCAPER

URL_ESCAPER

public static final XmlOutput.StringEscaper URL_ESCAPER

Constructor Detail

StringEscaper

StringEscaper()

Identity transform

Method Detail

defineEscape

public void defineEscape(char from,
                         String to)

Map character "from" to escape sequence "to"

makeImmutable

public void makeImmutable()

Call this before attempting to escape strings; after this, defineEscape may not be called again.

escapeString

public String escapeString(String s)

Apply an immutable transformation to the given string.

clone

protected XmlOutput.StringEscaper clone()

Overrides:

clone in class Object

getMutableClone

public XmlOutput.StringEscaper getMutableClone()

Create a mutable escaper from an existing escaper, which may already be immutable.