org.apache.wicket.core.util.string.interpolator

Class PropertyVariableInterpolator

java.lang.Object

org.apache.wicket.util.string.interpolator.VariableInterpolator

org.apache.wicket.core.util.string.interpolator.PropertyVariableInterpolator

All Implemented Interfaces:

Serializable, IClusterable

Direct Known Subclasses:

ConvertingPropertyVariableInterpolator

public class PropertyVariableInterpolator
extends VariableInterpolator

Interpolates values into Strings that are produced by interpreting property expressions against an object.

Takes a string such as "My name is ${name}" and a bean such as a Person , and reflects on the object using any property expressions found inside ${} markers in the String. In this case, if the Person model has a getName() method. The results of calling that method would be substituted for ${name}. If getName() returned "Jonathan", then the result would return "My name is Jonathan".

"$" is the escape char. Thus "$${text}" can be used to escape it (ignore interpretation). If '$3.24' is needed then '$$${amount}' should be used. The first $ sign escapes the second, and the third is used to interpolate the variable.

Since:

1.2.6

Author:

Jonathan Locke

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.wicket.util.string.interpolator.VariableInterpolator

string

Constructor Summary

Constructors

Constructor and Description
PropertyVariableInterpolator(String string, Object object) Constructor.

Method Summary

Modifier and Type	Method and Description
protected String	getValue(String variableName) Retrieves a value for a variable name during interpolation.
protected String	toString(Object value) Convert the given value to a string for interpolation.

Methods inherited from class org.apache.wicket.util.string.interpolator.VariableInterpolator

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyVariableInterpolator

public PropertyVariableInterpolator(String string,
                                    Object object)

Constructor.

Parameters:

string - a String to interpolate into

object - the model to apply property expressions to

Method Detail

getValue

protected String getValue(String variableName)

Description copied from class: VariableInterpolator

Retrieves a value for a variable name during interpolation.

Specified by:

getValue in class VariableInterpolator

Parameters:

variableName - a variable name

Returns:

the value

toString

protected String toString(Object value)

Convert the given value to a string for interpolation.

This default implementation delegates to Strings.toString(Object).

Parameters:

value - the value, never null

Returns:

string representation