Constructor and Description |
---|
DataList() |
DataList(java.lang.String selected,
java.util.List<java.lang.String> list) |
Modifier and Type | Method and Description |
---|---|
java.lang.Object |
copyTo(java.lang.Object object)
Copies the internal state of
this object to the
specified copy . |
protected void |
copyToImpl(DataList copy)
This is a helper method for
copyTo(Object) that can
also be used by subclasses that implement copyTo(Object) . |
boolean |
equals(java.lang.Object o) |
protected boolean |
equalsImpl(DataList dataList)
This is a helper method for
equals(Object) that can
also be used by subclasses that implement equals(Object) . |
java.util.List<java.lang.String> |
getList()
Returns the list contents
|
java.lang.String |
getSelectedItem()
Gets the selected item
|
void |
setList(java.util.List<java.lang.String> dataList)
Sets the list contents
|
void |
setSelectedItem(java.lang.String selectedItem)
Sets the selected item in the list
|
public DataList()
public DataList(java.lang.String selected, java.util.List<java.lang.String> list)
public java.lang.String getSelectedItem()
public void setSelectedItem(java.lang.String selectedItem)
selectedItem
- - The selected item as a Stringpublic java.util.List<java.lang.String> getList()
List
public void setList(java.util.List<java.lang.String> dataList)
dataList
- - The contents of the listpublic java.lang.Object copyTo(java.lang.Object object)
Copyable
this
object to the
specified copy
. If copy
is
null
, then this method should create a new instance
of this
class and proceed to copy the internal state
to the newly created object. Generally, only the persistent
state of the object should be copied, but whether or not it is
appropriate to copy transient properties is at the discretion
of the individual implementor.
Regardless of whether the copy occurs to an existing object or to
a newly created object, the return value is object to which
this
object's state was copied.
There is a standard implementation pattern for the
copyTo
method that helps avoid problems that arise
when a Copyable
object is subclassed. The pattern
is:
The parameter passed into thepublic Object copyTo( Object target ) { final <this_class> copy = target != null ? (<this_class>) target : new <this_class>(); copyToImpl( copy ); return copy; } protected final void copyToImpl( <this_class> copy ) { super.copyToImpl( copy ); // if necessary // put code here for copying the properties of <this_class> }
copyToImpl
method is
the same type of this
class. The responsibility of
copyToImpl
is to copy the state of this
class through direct access of the fields. The
copyToImpl
method should not use getters and setters
since these may be overridden, causing the state of
this
class to be incompletely copied.copyTo
in interface Copyable
object
- The target object to which the state of
this
object should be copied. If target
is null
, then the copyTo
method will
return a new instance of this
class.this
object was copied. If the target
was
non-null
, then the return value is the same as the
target
object that was passed in; otherwise, the
return value is a new instance of this
class.protected final void copyToImpl(DataList copy)
copyTo(Object)
that can
also be used by subclasses that implement copyTo(Object)
.
It assumes that the argument is not null
.public boolean equals(java.lang.Object o)
equals
in class java.lang.Object
protected final boolean equalsImpl(DataList dataList)
equals(Object)
that can
also be used by subclasses that implement equals(Object)
.
It assumes that the argument is not null
.