Package org.apache.maven.model.interpolation.reflection

Class ReflectionValueExtractor

java.lang.Object

org.apache.maven.model.interpolation.reflection.ReflectionValueExtractor

public class ReflectionValueExtractor
extends Object

Using simple dotted expressions to extract the values from an Object instance using JSP-like expressions such as project.build.sourceDirectory.

In addition to usual getters using getXxx or isXxx suffixes, accessors using asXxx or toXxx prefixes are also supported.

Method Summary

Modifier and Type	Method	Description
static Object	evaluate(String expression, Object root)	The implementation supports indexed, nested and mapped properties.
static Object	evaluate(String expression, Object root, boolean trimRootToken)	The implementation supports indexed, nested and mapped properties.

Methods inherited from class java.lang.Object

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

Method Details

evaluate

public static Object evaluate(@Nonnull
 String expression,
 @Nullable
 Object root)
                       throws IntrospectionException

The implementation supports indexed, nested and mapped properties.

• nested properties should be defined by a dot, i.e. "user.address.street"
• indexed properties (java.util.List or array instance) should be contains (\\w+)\\[(\\d+)\\] pattern, i.e. "user.addresses[1].street"
• mapped properties should be contains (\\w+)\\((.+)\\) pattern, i.e. "user.addresses(myAddress).street"

Parameters:

expression - not null expression

root - not null object

Returns:

the object defined by the expression

Throws:

IntrospectionException - if any

evaluate

public static Object evaluate(@Nonnull
 String expression,
 @Nullable
 Object root,
 boolean trimRootToken)
                       throws IntrospectionException

The implementation supports indexed, nested and mapped properties.

• nested properties should be defined by a dot, i.e. "user.address.street"
• indexed properties (java.util.List or array instance) should be contains (\\w+)\\[(\\d+)\\] pattern, i.e. "user.addresses[1].street"
• mapped properties should be contains (\\w+)\\((.+)\\) pattern, i.e. "user.addresses(myAddress).street"

Parameters:

expression - not null expression

root - not null object

trimRootToken - trim root token yes/no.

Returns:

the object defined by the expression

Throws:

IntrospectionException - if any