org.springframework.aop.aspectj

## Class TypePatternClassFilter

- java.lang.Object
- - org.springframework.aop.aspectj.TypePatternClassFilter

- All Implemented Interfaces:
    ClassFilter

      public class TypePatternClassFilter
      extends Object
      implements ClassFilter

  Spring AOP `ClassFilter` implementation using AspectJ type matching.
  Since:
    2.0
  Author:
    Rod Johnson

- - ### Field Summary

    - ### Fields inherited from interface org.springframework.aop.ClassFilter

      `TRUE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `TypePatternClassFilter()` Creates a new instance of the `TypePatternClassFilter` class.
    `TypePatternClassFilter(String typePattern)` Create a fully configured `TypePatternClassFilter` using the given type pattern.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getTypePattern()`
    `boolean` | `matches(Class clazz)` Should the pointcut apply to the given interface or target class?
    `void` | `setTypePattern(String typePattern)` Set the AspectJ type pattern to match.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### TypePatternClassFilter

          public TypePatternClassFilter()

      Creates a new instance of the `TypePatternClassFilter` class.

      This is the JavaBean constructor; be sure to set the `typePattern` property, else a no doubt fatal `IllegalStateException` will be thrown when the `matches(Class)` method is first invoked.

    - #### TypePatternClassFilter

          public TypePatternClassFilter(String typePattern)

      Create a fully configured `TypePatternClassFilter` using the given type pattern.
      Parameters:
        `typePattern` - the type pattern that AspectJ weaver should parse
      Throws:
        `IllegalArgumentException` - if the supplied `typePattern` is `null` or is recognized as invalid

  - ### Method Detail

    - #### setTypePattern

          public void setTypePattern(String typePattern)

      Set the AspectJ type pattern to match.

      Examples include: `org.springframework.beans.*` This will match any class or interface in the given package. `org.springframework.beans.ITestBean+` This will match the `ITestBean` interface and any class that implements it.

      These conventions are established by AspectJ, not Spring AOP.

      Parameters:
        `typePattern` - the type pattern that AspectJ weaver should parse
      Throws:
        `IllegalArgumentException` - if the supplied `typePattern` is `null` or is recognized as invalid

    - #### getTypePattern

          public String getTypePattern()

    - #### matches

          public boolean matches(Class clazz)

      Should the pointcut apply to the given interface or target class?
      Specified by:
        `matches` in interface `ClassFilter`
      Parameters:
        `clazz` - candidate target class
      Returns:
        whether the advice should apply to this candidate target class
      Throws:
        `IllegalStateException` - if no `setTypePattern(String)` has been set