Package org.oddjob.arooa.types

Class ConvertType<T>

java.lang.Object
org.oddjob.arooa.types.ConvertType<T>
Type Parameters:
T -
All Implemented Interfaces:
ArooaValue, ArooaSessionAware
public class ConvertType<T> extends Object implements ArooaValue, ArooaSessionAware
Author:
rob

Description

Convert a value to the given Java Class. Most of the time Oddjob's own automatic conversions are fine for setting job properties but occasionally it can be useful to force a conversion to a different type.

This type uses Oddjob's internal converters itself to perform the conversion.

The is property can provide direct access to the converted value. This can be useful for gaining access to a Java type from Oddjob's wrapper types.

Example

Convert a delimited list to an array of Strings. 
<oddjob id="this">

    <job>

        <foreach>

            <values>

                <convert>

                    <to>

                        <class name="[Ljava.lang.String;"/>

                    </to>

                    <value>

                        <value value="&quot;grapes, red&quot;, &quot;grapes, white&quot;, gratefruit"/>

                    </value>

                </convert>

            </values>

            <configuration>

                <xml>

                    <foreach id="loop">

                        <job>

                            <echo>${loop.current}</echo>

                        </job>

                    </foreach>

                </xml>

            </configuration>

        </foreach>

    </job>

</oddjob>
The output is: 
grapes, red

grapes, white

gratefruit
Demonstrate the use of the is property. 
<oddjob id="this">

    <job>

        <sequential>

            <jobs>

                <variables id="vars">

                    <aNumber>

                        <convert>

                            <to>

                                <class name="java.lang.Integer"/>

                            </to>

                            <value>

                                <value value="42"/>

                            </value>

                        </convert>

                    </aNumber>

                </variables>

                <echo>${vars.aNumber}

${vars.aNumber.class.name}

${vars.aNumber.value}

${vars.aNumber.value.class.name}

${vars.aNumber.is}

${vars.aNumber.is.class.name}</echo>

            </jobs>

        </sequential>

    </job>

</oddjob>
The output is: 
42

org.oddjob.arooa.types.ConvertType

42

org.oddjob.arooa.types.ValueType

42

java.lang.Integer