Class ConstantFactory
- java.lang.Object
-
- org.apache.commons.collections.functors.ConstantFactory
-
- All Implemented Interfaces:
java.io.Serializable
,Factory
@Deprecated(since="2021-04-30") public class ConstantFactory extends java.lang.Object implements Factory, java.io.Serializable
Deprecated.Commons Collections 3 is in maintenance mode. Commons Collections 4 should be used instead.Factory implementation that returns the same constant each time.No check is made that the object is immutable. In general, only immutable objects should use the constant factory. Mutable objects should use the prototype factory.
- Since:
- Commons Collections 3.0
- See Also:
- Serialized Form
-
-
Field Summary
Fields Modifier and Type Field Description static Factory
NULL_INSTANCE
Deprecated.Returns null each time
-
Constructor Summary
Constructors Constructor Description ConstantFactory(java.lang.Object constantToReturn)
Deprecated.Constructor that performs no validation.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description java.lang.Object
create()
Deprecated.Always return constant.java.lang.Object
getConstant()
Deprecated.Gets the constant.static Factory
getInstance(java.lang.Object constantToReturn)
Deprecated.Factory method that performs validation.
-
-
-
Field Detail
-
NULL_INSTANCE
public static final Factory NULL_INSTANCE
Deprecated.Returns null each time
-
-
Method Detail
-
getInstance
public static Factory getInstance(java.lang.Object constantToReturn)
Deprecated.Factory method that performs validation.- Parameters:
constantToReturn
- the constant object to return each time in the factory- Returns:
- the
constant
factory.
-
create
public java.lang.Object create()
Deprecated.Always return constant.
-
getConstant
public java.lang.Object getConstant()
Deprecated.Gets the constant.- Returns:
- the constant
- Since:
- Commons Collections 3.1
-
-