to.etc.template

Class TplExpander

java.lang.Object

to.etc.template.TplExpander

Direct Known Subclasses:

ServletTplExpander

Deprecated.

@Deprecated
public class TplExpander
extends Object

VERY OLD - DO NOT USE Expands simple templates in runtime. All instances of $name are replaced with the value of name in the context hash table. When the tag is encountered, the value is looked up in the context; it must be an iteration, array or enumeration. If so, the data following the loop tag till the tag is repeated for each instance of the enumeration.

Expanded names (default) are:

• appurl: the URL for the servlet. This is the registered name of the servlet, like http://localhost:8080/servlet/WebNote/
• fullurl: The complete URL, including query string (if applicable). for instance: http://localhost:8080/servlet/WebNote/klant?key=121
• host: the complete host and port name: http://localhost:8080/
• request: returns the HttpServletRequest instance
• prevurl, referred, referrer: returns the REFERER header.

This uses Java Introspection to allow very basic functions to be called on variables found thru the context. For a name like foo.bar it will attempt to get an object by looking up the key foo in the hash table. It will then look for a function that is called getBar() or bar() on that object. When found it will call that function and the result will be used for the next item in the dotted list.

Author:

Frits Jalvingh

Field Summary

Fields

Modifier and Type	Field and Description
protected TplCallback	m_cb Deprecated.
protected String	m_hostname Deprecated.
protected int	m_hostport Deprecated.
protected String	m_hosturl Deprecated.
protected String	m_servlet_basepath Deprecated.
protected String	m_servlet_fullpath Deprecated.

Constructor Summary

Constructors

Constructor and Description
TplExpander(TplCallback cb) Deprecated. Constructor
TplExpander(TplCallback cb, boolean html) Deprecated.

Method Summary

Modifier and Type	Method and Description
void	expand(InputStream is, PrintWriter pw) Deprecated. Expands the template to the printwriter spec'd.
String	expand(String input) Deprecated.
void	expand(String input, PrintWriter output) Deprecated.
Object	findName(String name) Deprecated. This function can be overridden to provide more predefined names.
protected Object	findPredef(String name) Deprecated. If the name passed is a predefined name this function will return the result object for the name.
protected Object	locateName(String name) Deprecated. Locates a root name.
void	putDummy(String name) Deprecated. This method posts the "dummy getter" method for a given name.
void	putGetter(String name, Object o) Deprecated.
protected String	slconc(String s1, String s2) Deprecated.

Methods inherited from class java.lang.Object

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

Field Detail

m_cb

protected TplCallback m_cb

Deprecated.

m_servlet_basepath

protected String m_servlet_basepath

Deprecated.

m_servlet_fullpath

protected String m_servlet_fullpath

Deprecated.

m_hosturl

protected String m_hosturl

Deprecated.

m_hostname

protected String m_hostname

Deprecated.

m_hostport

protected int m_hostport

Deprecated.

Constructor Detail

TplExpander

public TplExpander(TplCallback cb)

Deprecated.

Constructor

TplExpander

public TplExpander(TplCallback cb,
                   boolean html)

Deprecated.

Method Detail

slconc

protected String slconc(String s1,
                        String s2)

Deprecated.

expand

public void expand(InputStream is,
                   PrintWriter pw)
            throws Exception

Deprecated.

Expands the template to the printwriter spec'd.

Throws:

Exception

expand

public void expand(String input,
                   PrintWriter output)
            throws Exception

Deprecated.

Throws:

Exception

expand

public String expand(String input)
              throws Exception

Deprecated.

Throws:

Exception

findName

public Object findName(String name)

Deprecated.

This function can be overridden to provide more predefined names. It should return null if it does not recognise the name.

findPredef

protected Object findPredef(String name)

Deprecated.

If the name passed is a predefined name this function will return the result object for the name. This is better than putting all predefined names in the hash table because many names must be computed, and building such a hash table takes time and resources (that are garbage after each request!). If the name passed is not a predefined name the routine returns null.

locateName

protected Object locateName(String name)
                     throws TplException

Deprecated.

Locates a root name. The name is first searched in this-context's hashtable; then all user functions are tried. This allows the put method to override all names!!

Throws:

TplException

putGetter

public void putGetter(String name,
                      Object o)

Deprecated.

putDummy

public void putDummy(String name)

Deprecated.

This method posts the "dummy getter" method for a given name. The dummy getter posts a class that returns, for all names retrieved from it, the empty string.