Apache Ant 1.10.14 · org.apache.tools.ant.util.ReflectUtil

Access	Constructor and Description
private	ReflectUtil() private constructor

Method Summary

Modifier and Type	Method and Description
public static < desired type T> T	Returns: the value of the field. getField(Object the object to look at. obj, String the name of the field in the object. fieldName) Get the value of a field in an object.
public static < desired type T> T	Returns: the object returned by the method invoke(Object the object to invoke the method on. obj, String the name of the method to call methodName) Call a method on the object with no parameters.
public static < desired type T> T	Returns: the object returned by the method invoke(Object the object to invoke the method on. obj, String the name of the method to call methodName, Class<?> the type of argument. argType, Object the value of the argument. arg) Call a method on the object with one argument.
public static < desired type T> T	Returns: the object returned by the method invoke(Object the object to invoke the method on. obj, String the name of the method to call methodName, Class<?> the type of the first argument. argType1, Object the value of the first argument. arg1, Class<?> the type of the second argument. argType2, Object the value of the second argument. arg2) Call a method on the object with two argument.
public static < desired type T> T	Returns: the object returned by the method invokeStatic(Object the object to invoke the method on. obj, String the name of the method to call methodName) Call a method on the object with no parameters.
public static < desired type T> T	Returns: class instance newInstance(Class<T> Class<T> ofClass, Class<?>[] Class<?>[] argTypes, Object[] Object[] args) Create an instance of a class using the constructor matching the given arguments.
public static boolean	Returns: true if the object has the method. respondsTo(Object the object o, String the method to check for methodName) A method to test if an object responds to a given message (method call)
public static void	throwBuildException(Exception the invocation target exception. t) A method to convert an invocationTargetException to a BuildException and throw it.
public static BuildException	Returns: the converted exception. toBuildException(Exception the invocation target exception. t) A method to convert an invocationTargetException to a BuildException.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

ReflectUtil	back to summary
private ReflectUtil() private constructor

Method Detail

getField	back to summary
public static <T> T getField(Object obj, String fieldName) throws BuildException Get the value of a field in an object. Parameters <T> desired type obj:Object the object to look at. fieldName:String the name of the field in the object. Returns:T the value of the field. Annotations @SuppressWarnings:unchecked Exceptions BuildException: if there is an error.

getField

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public static <T> T getField(Object obj, String fieldName) throws BuildException

Get the value of a field in an object.

Parameters

<T>: desired type
obj:Object: the object to look at.
fieldName:String: the name of the field in the object.

Returns:T

the value of the field.

Annotations

@SuppressWarnings:unchecked

Exceptions

BuildException:: if there is an error.

invoke	back to summary
public static <T> T invoke(Object obj, String methodName) Call a method on the object with no parameters. Parameters <T> desired type obj:Object the object to invoke the method on. methodName:String the name of the method to call Returns:T the object returned by the method Annotations @SuppressWarnings:unchecked

invoke

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public static <T> T invoke(Object obj, String methodName)

Call a method on the object with no parameters.

Parameters

<T>: desired type
obj:Object: the object to invoke the method on.
methodName:String: the name of the method to call

Returns:T

the object returned by the method

Annotations

@SuppressWarnings:unchecked

invoke	back to summary
public static <T> T invoke(Object obj, String methodName, Class<?> argType, Object arg) Call a method on the object with one argument. Parameters <T> desired type obj:Object the object to invoke the method on. methodName:String the name of the method to call argType:Class<?> the type of argument. arg:Object the value of the argument. Returns:T the object returned by the method Annotations @SuppressWarnings:unchecked

invoke

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public static <T> T invoke(Object obj, String methodName, Class<?> argType, Object arg)

Call a method on the object with one argument.

Parameters

<T>: desired type
obj:Object: the object to invoke the method on.
methodName:String: the name of the method to call
argType:Class<?>: the type of argument.
arg:Object: the value of the argument.

Returns:T

the object returned by the method

Annotations

@SuppressWarnings:unchecked

invoke	back to summary
public static <T> T invoke(Object obj, String methodName, Class<?> argType1, Object arg1, Class<?> argType2, Object arg2) Call a method on the object with two argument. Parameters <T> desired type obj:Object the object to invoke the method on. methodName:String the name of the method to call argType1:Class<?> the type of the first argument. arg1:Object the value of the first argument. argType2:Class<?> the type of the second argument. arg2:Object the value of the second argument. Returns:T the object returned by the method Annotations @SuppressWarnings:unchecked

invoke

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public static <T> T invoke(Object obj, String methodName, Class<?> argType1, Object arg1, Class<?> argType2, Object arg2)

Call a method on the object with two argument.

Parameters

<T>: desired type
obj:Object: the object to invoke the method on.
methodName:String: the name of the method to call
argType1:Class<?>: the type of the first argument.
arg1:Object: the value of the first argument.
argType2:Class<?>: the type of the second argument.
arg2:Object: the value of the second argument.

Returns:T

the object returned by the method

Annotations

@SuppressWarnings:unchecked

invokeStatic	back to summary
public static <T> T invokeStatic(Object obj, String methodName) Call a method on the object with no parameters. Note Unlike the invoke method above, this calls class or static methods, not instance methods. Parameters <T> desired type obj:Object the object to invoke the method on. methodName:String the name of the method to call Returns:T the object returned by the method Annotations @SuppressWarnings:unchecked

invokeStatic

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public static <T> T invokeStatic(Object obj, String methodName)

Call a method on the object with no parameters.

Note

Unlike the invoke method above, this calls class or static methods, not instance methods.

Parameters

<T>: desired type
obj:Object: the object to invoke the method on.
methodName:String: the name of the method to call

Returns:T

the object returned by the method

Annotations

@SuppressWarnings:unchecked

newInstance	back to summary
public static <T> T newInstance(Class<T> ofClass, Class<?>[] argTypes, Object[] args) Create an instance of a class using the constructor matching the given arguments. Parameters <T> desired type ofClass:Class<T> Class<T> argTypes:Class<?>[] Class<?>[] args:Object[] Object[] Returns:T class instance Since Ant 1.8.0

newInstance

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public static <T> T newInstance(Class<T> ofClass, Class<?>[] argTypes, Object[] args)

Create an instance of a class using the constructor matching the given arguments.

Parameters

<T>: desired type
ofClass:Class<T>: Class<T>
argTypes:Class<?>[]: Class<?>[]
args:Object[]: Object[]

Returns:T

class instance

Since

Ant 1.8.0

respondsTo	back to summary
public static boolean respondsTo(Object o, String methodName) throws BuildException A method to test if an object responds to a given message (method call) Parameters o:Object the object methodName:String the method to check for Returns:boolean true if the object has the method. Exceptions BuildException: if there is a problem.

respondsTo

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public static boolean respondsTo(Object o, String methodName) throws BuildException

A method to test if an object responds to a given message (method call)

Parameters

o:Object: the object
methodName:String: the method to check for

Returns:boolean

true if the object has the method.

Exceptions

BuildException:: if there is a problem.

throwBuildException	back to summary
public static void throwBuildException(Exception t) throws BuildException A method to convert an invocationTargetException to a BuildException and throw it. Parameters t:Exception the invocation target exception. Exceptions BuildException: the converted exception.

throwBuildException

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public static void throwBuildException(Exception t) throws BuildException

A method to convert an invocationTargetException to a BuildException and throw it.

Parameters

t:Exception: the invocation target exception.

Exceptions

BuildException:: the converted exception.

toBuildException	back to summary
public static BuildException toBuildException(Exception t) A method to convert an invocationTargetException to a BuildException. Parameters t:Exception the invocation target exception. Returns:BuildException the converted exception. Since ant 1.7.1

toBuildException

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public static BuildException toBuildException(Exception t)

A method to convert an invocationTargetException to a BuildException.

Parameters

t:Exception: the invocation target exception.

Returns:BuildException

the converted exception.

Since

ant 1.7.1

public Class ReflectUtil

Constructor Summary

Method Summary

Constructor Detail

Method Detail