org.apache.cocoon.components.treeprocessor.variables
Class VariableResolver

java.lang.Object
  org.apache.cocoon.components.treeprocessor.variables.VariableResolver

Direct Known Subclasses:

NOPVariableResolver, PreparedVariableResolver

public abstract class VariableResolver
extends Object

Utility class for handling {...} pattern substitutions in sitemap statements.

Version:

CVS $Id: VariableResolver.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Sylvain Wallez

Field Summary

static Map	EMPTY_MAP
protected String	originalExpr

Constructor Summary

protected

VariableResolver(String expr)

Method Summary

static Map	buildMap(Map expressions, InvokeContext context, Map objectModel) Build a Map from a Map of named ListOfMapResolvers and a list of Maps used for resolution.
static Parameters	buildParameters(Map expressions, InvokeContext context, Map objectModel) Build a Parameters object from a Map of named VariableResolvers and a list of Maps used for resolution.
boolean	equals(Object object) Compare two VariableResolvers
int	hashCode() generate HashCode needed to determine uniqueness within hashtables
abstract String	resolve(InvokeContext context, Map objectModel) Resolve all {...} patterns using the values given in the list of maps and the object model.
String	resolve(Map objectModel) Resolve all {...} patterns using the values given in the object model.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY_MAP

public static final Map EMPTY_MAP

originalExpr

protected final String originalExpr

Constructor Detail

VariableResolver

protected VariableResolver(String expr)

Method Detail

toString

public final String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object object)

Compare two VariableResolvers

Overrides:

equals in class Object

hashCode

public int hashCode()

generate HashCode needed to determine uniqueness within hashtables

Overrides:

hashCode in class Object

resolve

public String resolve(Map objectModel)
               throws PatternException

Resolve all {...} patterns using the values given in the object model.

Throws:

PatternException

resolve

public abstract String resolve(InvokeContext context,
                               Map objectModel)
                        throws PatternException

Resolve all {...} patterns using the values given in the list of maps and the object model.

Throws:

PatternException

buildParameters

public static Parameters buildParameters(Map expressions,
                                         InvokeContext context,
                                         Map objectModel)
                                  throws PatternException

Build a Parameters object from a Map of named VariableResolvers and a list of Maps used for resolution.

Returns:

a fully resolved Parameters.

Throws:

PatternException

buildMap

public static Map buildMap(Map expressions,
                           InvokeContext context,
                           Map objectModel)
                    throws PatternException

Build a Map from a Map of named ListOfMapResolvers and a list of Maps used for resolution.

Returns:

a fully resolved Map.

Throws:

PatternException