java.lang.Object
- jade.content.abs.AbsContentElementList

All Implemented Interfaces:

AbsContentElement, AbsObject, ContentElement, Serializable, Serializable
```
public class AbsContentElementList
extends Object
implements AbsContentElement
```
An abstract descriptor that can hold a list of generic content element expressions.

Author:

Federico Bergenti - Universita` di Parma, Giovanni Caire - TILAB

See Also:

Serialized Form

Field Summary
- Fields inherited from interface jade.content.abs.AbsObject
  ABS_AGENT_ACTION, ABS_AGGREGATE, ABS_CONCEPT, ABS_CONCEPT_SLOT_FUNCTION, ABS_CONTENT_ELEMENT_LIST, ABS_IRE, ABS_PREDICATE, ABS_PRIMITIVE, ABS_REFERENCE, ABS_VARIABLE, UNKNOWN

Constructor Summary

Constructors
Constructor Description

AbsContentElementList()
Construct an Abstract descriptor to hold a content element list

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(AbsContentElement element)`	Add a new element (that must be a content element) to this content element list.
`void`	`clear()`	Clear all the elements in this content element list.
`boolean`	`contains(AbsContentElement element)`	Test if a given content element is contained in this content element list.
`AbsContentElement`	`get(int i)`	Retrieves the `i`-th element in this content element list.
`AbsObject`	`getAbsObject(String name)`	Makes no sense in the case of an AbsContentElementList that has no attribute --> Just return null
`int`	`getAbsType()`
`int`	`getCount()`	Return the number of elements in the list.
`String[]`	`getNames()`	Makes no sense in the case of an AbsContentElementList that has no attribute --> Just return null
`String`	`getTypeName()`
`int`	`hashCode()`
`int`	`indexOf(AbsContentElement element)`	Returns the position of an element within this content element list.
`boolean`	`isAContentExpression()`	Return true if this Abstract Content Element represents a ContentExpression of the SL Grammar (see also FIPA-SL specifications).
`boolean`	`isEmpty()`	Test if the content element list is empty.
`boolean`	`isGrounded()`	Tests if this AbsContentElementList is grounded, i.e., if no one of its elements is associated with a variable
`Iterator`	`iterator()`
`AbsContentElement`	`remove(int index)`	Removes the element at the given position from this content element list.
`void`	`setIsAContentExpression(boolean flag)`	Set the isAContentExpression flag to the passed value.
`int`	`size()`	Retrieves the number of elements in this content element list.
`AbsContentElement[]`	`toArray()`	Retrieve all elements in this content element list in the form of an array.
`String`	`toString()`	This method is here just for debugging.

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

- Constructor Detail
  - AbsContentElementList
```
public AbsContentElementList()
```
    Construct an Abstract descriptor to hold a content element list
- Method Detail
  - add
```
public void add(AbsContentElement element)
```
    Add a new element (that must be a content element) to this content element list.
    
    Parameters:
    
    element - The element to add.
  - size
```
public int size()
```
    Retrieves the number of elements in this content element list.
    
    Returns:
    
    The number of elements.
  - get
```
public AbsContentElement get(int i)
```
    Retrieves the i-th element in this content element list.
    
    Parameters:
    
    i - The index of the element to retrieve.
    
    Returns:
    
    The element.
  - iterator
```
public Iterator iterator()
```
    Returns:
    
    An Iterator over the elements of this content element list.
  - clear
```
public void clear()
```
    Clear all the elements in this content element list.
  - contains
```
public boolean contains(AbsContentElement element)
```
    Test if a given content element is contained in this content element list.
    
    Returns:
    
    true if the given content element is contained in this content element list.
  - indexOf
```
public int indexOf(AbsContentElement element)
```
    Returns the position of an element within this content element list.
    
    Returns:
    
    The position of an element within this content element list or -1 if the given element is not contained in this content element list.
  - remove
```
public AbsContentElement remove(int index)
```
    Removes the element at the given position from this content element list.
    
    Returns:
    
    The removed element.
  - isEmpty
```
public boolean isEmpty()
```
    Test if the content element list is empty.
    
    Returns:
    
    true if this content element list does not contain any element.
  - toArray
```
public AbsContentElement[] toArray()
```
    Retrieve all elements in this content element list in the form of an array.
    
    Returns:
    
    An array containing all elements in this content element list.
  - getTypeName
```
public String getTypeName()
```
    Specified by:
    
    getTypeName in interface AbsObject
    
    Returns:
    
    The name of the type of the object held by this abstract descriptor.
    
    See Also:
    
    AbsObject.getTypeName()
  - getAbsObject
```
public AbsObject getAbsObject(String name)
```
    Makes no sense in the case of an AbsContentElementList that has no attribute --> Just return null
    
    Specified by:
    
    getAbsObject in interface AbsObject
    
    Parameters:
    
    name - The name of the attribute.
    
    Returns:
    
    value The value of the attribute.
  - getNames
```
public String[] getNames()
```
    Makes no sense in the case of an AbsContentElementList that has no attribute --> Just return null
    
    Specified by:
    
    getNames in interface AbsObject
    
    Returns:
    
    the name of all attributes.
  - isGrounded
```
public boolean isGrounded()
```
    Tests if this AbsContentElementList is grounded, i.e., if no one of its elements is associated with a variable
    
    Specified by:
    
    isGrounded in interface AbsObject
    
    Returns:
    
    true if the object is grounded.
  - getCount
```
public int getCount()
```
    Return the number of elements in the list. Is equivalent to size()
    
    Specified by:
    
    getCount in interface AbsObject
    
    Returns:
    
    the number of attributes.
  - toString
```
public String toString()
```
    This method is here just for debugging. Notice that it is highly innefficient. The method StringCodec.encode() should be used instead.
    
    Overrides:
    
    toString in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - isAContentExpression
```
public boolean isAContentExpression()
```
    Description copied from interface: AbsContentElement
    
    Return true if this Abstract Content Element represents a ContentExpression of the SL Grammar (see also FIPA-SL specifications).
    
    Specified by:
    
    isAContentExpression in interface AbsContentElement
    
    Returns:
    
    true if this Abstract Content Element represents a ContentExpression of the SL Grammar (see also FIPA-SL specifications), false otherwise
    
    See Also:
    
    AbsContent.isAContentExpression
  - setIsAContentExpression
```
public void setIsAContentExpression(boolean flag)
```
    Description copied from interface: AbsContentElement
    
    Set the isAContentExpression flag to the passed value. By default, if this method was not called, this value is intialized to false.
    
    Specified by:
    
    setIsAContentExpression in interface AbsContentElement
    
    Parameters:
    
    flag - true if this Abstract Content Element represents a ContentExpression of the SL Grammar (see also FIPA-SL specifications), false otherwise
  - getAbsType
```
public int getAbsType()
```
    Specified by:
    
    getAbsType in interface AbsObject

Class AbsContentElementList

Field Summary

Fields inherited from interface jade.content.abs.AbsObject

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbsContentElementList

Method Detail

add

size

get

iterator

clear

contains

indexOf

remove

isEmpty

toArray

getTypeName

getAbsObject

getNames

isGrounded

getCount

toString

hashCode

isAContentExpression

setIsAContentExpression

getAbsType