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

Methods

Modifier and Type	Method and Description
protected String	getValue(String variableName)
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)

Specified by:

getValue in class VariableInterpolator

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