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ElementFilter (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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javax.lang.model.util
Class ElementFilter

java.lang.Object
  javax.lang.model.util.ElementFilter

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public class ElementFilter
extends Object

Filters for selecting just the elements of interest from a collection of elements. The returned sets and lists are new collections and do use the argument as a backing store. The methods in this class do not make any attempts to guard against concurrent modifications of the arguments. The returned sets and lists are mutable but unsafe for concurrent access. A returned set has the same iteration order as the argument set to a method.

If iterables and sets containing null are passed as arguments to methods in this class, a NullPointerException will be thrown.

Note that a static import statement can make the text of calls to the methods in this class more concise; for example:

     import static javax.lang.model.util.ElementFilter.*;
     ...
         List<VariableElement> fs = fieldsIn(someClass.getEnclosedElements());
 

Since:

1.6

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Method Summary
static List<ExecutableElement>	constructorsIn(Iterable<? extends Element> elements)           Returns a list of constructors in elements.
static Set<ExecutableElement>	constructorsIn(Set<? extends Element> elements)           Returns a set of constructors in elements.
static List<VariableElement>	fieldsIn(Iterable<? extends Element> elements)           Returns a list of fields in elements.
static Set<VariableElement>	fieldsIn(Set<? extends Element> elements)           Returns a set of fields in elements.
static List<ExecutableElement>	methodsIn(Iterable<? extends Element> elements)           Returns a list of methods in elements.
static Set<ExecutableElement>	methodsIn(Set<? extends Element> elements)           Returns a set of methods in elements.
static List<PackageElement>	packagesIn(Iterable<? extends Element> elements)           Returns a list of packages in elements.
static Set<PackageElement>	packagesIn(Set<? extends Element> elements)           Returns a set of packages in elements.
static List<TypeElement>	typesIn(Iterable<? extends Element> elements)           Returns a list of types in elements.
static Set<TypeElement>	typesIn(Set<? extends Element> elements)           Returns a set of types in elements.

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Method Detail

fieldsIn

public static List<VariableElement> fieldsIn(Iterable<? extends Element> elements)

Returns a list of fields in elements.

Parameters:

elements - the elements to filter

Returns:

a list of fields in elements

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fieldsIn

public static Set<VariableElement> fieldsIn(Set<? extends Element> elements)

Returns a set of fields in elements.

Parameters:

elements - the elements to filter

Returns:

a set of fields in elements

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constructorsIn

public static List<ExecutableElement> constructorsIn(Iterable<? extends Element> elements)

Returns a list of constructors in elements.

Parameters:

elements - the elements to filter

Returns:

a list of constructors in elements

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constructorsIn

public static Set<ExecutableElement> constructorsIn(Set<? extends Element> elements)

Returns a set of constructors in elements.

Parameters:

elements - the elements to filter

Returns:

a set of constructors in elements

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methodsIn

public static List<ExecutableElement> methodsIn(Iterable<? extends Element> elements)

Returns a list of methods in elements.

Parameters:

elements - the elements to filter

Returns:

a list of methods in elements

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methodsIn

public static Set<ExecutableElement> methodsIn(Set<? extends Element> elements)

Returns a set of methods in elements.

Parameters:

elements - the elements to filter

Returns:

a set of methods in elements

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typesIn

public static List<TypeElement> typesIn(Iterable<? extends Element> elements)

Returns a list of types in elements.

Parameters:

elements - the elements to filter

Returns:

a list of types in elements

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typesIn

public static Set<TypeElement> typesIn(Set<? extends Element> elements)

Returns a set of types in elements.

Parameters:

elements - the elements to filter

Returns:

a set of types in elements

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packagesIn

public static List<PackageElement> packagesIn(Iterable<? extends Element> elements)

Returns a list of packages in elements.

Parameters:

elements - the elements to filter

Returns:

a list of packages in elements

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packagesIn

public static Set<PackageElement> packagesIn(Set<? extends Element> elements)

Returns a set of packages in elements.

Parameters:

elements - the elements to filter

Returns:

a set of packages in elements

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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