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

java.lang.Object
  org.apache.wicket.util.string.interpolator.VariableInterpolator
      org.apache.wicket.util.string.interpolator.PropertyVariableInterpolator

public final class PropertyVariableInterpolator
extends VariableInterpolator

Interpolates values into Strings that are produced by interpreting property expressions against a beans model.

The interpolate(String string, Object model) method takes a string such as " My name is ${name}" and a beans model 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 interpolate() would return "My name is Jonathan".

"$" is the escape char. Thus "$${text}" can be used to escape it (ignore interpretation).

Since:

1.2.6

Author:

Jonathan Locke

Field Summary

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

string

Method Summary

protected String	getValue(String variableName) Retrieves a value for a variable name during interpolation.
static String	interpolate(String string, Object object) Interpolates the given String, substituting values for property expressions.

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

Method Detail

interpolate

public static String interpolate(String string,
                                 Object object)

Interpolates the given String, substituting values for property expressions.

Parameters:

string - a String containing property expressions like ${xyz}

object - the Object to reflect on

Returns:

the interpolated String

getValue

protected String getValue(String variableName)

Retrieves a value for a variable name during interpolation.

Specified by:

getValue in class VariableInterpolator

Parameters:

variableName - the variable name

Returns:

the value