AstSelect (SonarSource :: Cobol

All Superinterfaces:

Iterable<AstNode>

All Known Implementing Classes:

EmptyAstSelect, ListAstSelect, SingleAstSelect
```
@Beta
public interface AstSelect
extends Iterable<AstNode>
```
An immutable ordered collection of AST nodes with operations for selection. Use AstNode.select() to obtain an instance of this interface.
This interface is not intended to be implemented by clients.

Since:

1.18

Method Summary

Methods
Modifier and Type	Method and Description
`AstSelect`	`children()` Returns new selection, which contains children of this selection.
`AstSelect`	`children(AstNodeType... types)` Returns new selection, which contains children of a given types of this selection.
`AstSelect`	`children(AstNodeType type)` Returns new selection, which contains children of a given type of this selection.
`AstSelect`	`descendants(AstNodeType... types)` Returns new selection, which contains descendants of a given types of this selection.
`AstSelect`	`descendants(AstNodeType type)` Returns new selection, which contains descendants of a given type of this selection.
`AstSelect`	`filter(AstNodeType... types)` Returns new selection, which contains elements of this selection that have any one of the given types.
`AstSelect`	`filter(AstNodeType type)` Returns new selection, which contains elements of this selection that have given type.
`AstSelect`	`filter(com.google.common.base.Predicate<AstNode> predicate)` Returns new selection, which contains elements of this selection that satisfy a predicate.
`AstSelect`	`firstAncestor(AstNodeType... types)` Returns new selection, which contains first ancestor of one of the given types for each node from this selection.
`AstSelect`	`firstAncestor(AstNodeType type)` Returns new selection, which contains first ancestor of a given type for each node from this selection.
`AstNode`	`get(int index)` Returns the element at the specified position in this selection.
`boolean`	`isEmpty()` Returns `true` if this selection contains no elements.
`boolean`	`isNotEmpty()` Returns `true` if this selection contains elements.
`Iterator<AstNode>`	`iterator()` Returns an iterator over the elements in this selection.
`AstSelect`	`nextSibling()` Returns new selection, which contains next sibling for each node from this selection.
`AstSelect`	`parent()` Returns new selection, which contains parent for each node from this selection.
`AstSelect`	`previousSibling()` Returns new selection, which contains previous sibling for each node from this selection.
`int`	`size()` Returns the number of elements in this selection.

- Method Detail
  - children
```
AstSelect children()
```
    Returns new selection, which contains children of this selection.
  - children
```
AstSelect children(AstNodeType type)
```
    Returns new selection, which contains children of a given type of this selection.
    In the following case, children("B") would return "B2" and "B3":
```
 A1
  |__ C1
  |    |__ B1
  |__ B2
  |__ B3
 
```
  - children
```
AstSelect children(AstNodeType... types)
```
    Returns new selection, which contains children of a given types of this selection.
    
    See Also:
    children(AstNodeType)
  - nextSibling
```
AstSelect nextSibling()
```
    Returns new selection, which contains next sibling for each node from this selection.
    In the following case, for selection "B1" nextSibling() would return "B2":
```
 A1
  |__ B1
  |    |__ C1
  |__ B2
 
```
  - previousSibling
```
AstSelect previousSibling()
```
    Returns new selection, which contains previous sibling for each node from this selection.
    In the following case, for selection "B2" previousSibling() would return "B1":
```
 A1
  |__ B1
  |    |__ C1
  |__ B2
 
```
  - parent
```
AstSelect parent()
```
    Returns new selection, which contains parent for each node from this selection.
  - firstAncestor
```
AstSelect firstAncestor(AstNodeType type)
```
    Returns new selection, which contains first ancestor of a given type for each node from this selection.
    In the following case, for selection "B2" firstAncestor("A") would return "A2":
```
 A1
  |__ A2
       |__ B1
       |__ B2
 
```
  - firstAncestor
```
AstSelect firstAncestor(AstNodeType... types)
```
    Returns new selection, which contains first ancestor of one of the given types for each node from this selection.
    
    See Also:
    firstAncestor(AstNodeType)
  - descendants
```
AstSelect descendants(AstNodeType type)
```
    Returns new selection, which contains descendants of a given type of this selection. Be careful, this method searches among all descendants whatever is their depth, so favor children(AstNodeType) when possible.
    In the following case, getDescendants("B") would return "B1", "B2" and "B3":
```
 A1
  |__ C1
  |    |__ B1
  |__ B2
  |__ D1
  |__ B3
 
```
  - descendants
```
AstSelect descendants(AstNodeType... types)
```
    Returns new selection, which contains descendants of a given types of this selection.
    
    See Also:
    descendants(AstNodeType)
  - isEmpty
```
boolean isEmpty()
```
    Returns true if this selection contains no elements.
    
    Returns:
    true if this selection contains no elements
  - isNotEmpty
```
boolean isNotEmpty()
```
    Returns true if this selection contains elements.
    
    Returns:
    true if this selection contains elements
  - filter
```
AstSelect filter(AstNodeType type)
```
    Returns new selection, which contains elements of this selection that have given type.
  - filter
```
AstSelect filter(AstNodeType... types)
```
    Returns new selection, which contains elements of this selection that have any one of the given types.
  - filter
```
AstSelect filter(com.google.common.base.Predicate<AstNode> predicate)
```
    Returns new selection, which contains elements of this selection that satisfy a predicate.
  - size
```
int size()
```
    Returns the number of elements in this selection.
    
    Returns:
    the number of elements in this selection
  - get
```
AstNode get(int index)
```
    Returns the element at the specified position in this selection.
    
    Parameters:
    index - index of the element to return
    
    Returns:
    the element at the specified position in this selection
    
    Throws:
    
    IndexOutOfBoundsException - if the index is out of range (index < 0 || index >= size())
  - iterator
```
Iterator<AstNode> iterator()
```
    Returns an iterator over the elements in this selection.
    
    Specified by:
    
    iterator in interface Iterable<AstNode>
    
    Returns:
    an iterator over the elements in this selection

Interface AstSelect

Method Summary

Method Detail

children

children

children

nextSibling

previousSibling

parent

firstAncestor

firstAncestor

descendants

descendants

isEmpty

isNotEmpty

filter

filter

filter

size

get

iterator