Package org.yaml.snakeyaml.composer

Class Composer

java.lang.Object

org.yaml.snakeyaml.composer.Composer

public class Composer
extends java.lang.Object

Creates a node graph from parser events.

Corresponds to the 'Compose' step as described in chapter 3.1 of the YAML Specification.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Map<java.lang.String,Node>	anchors
private LoaderOptions	loadingConfig
private int	nonScalarAliasesCount
protected Parser	parser
private java.util.Set<Node>	recursiveNodes
private Resolver	resolver

Constructor Summary

Constructors

Constructor	Description
Composer(Parser parser, Resolver resolver)
Composer(Parser parser, Resolver resolver, LoaderOptions loadingConfig)

Method Summary

Modifier and Type	Method	Description
boolean	checkNode()	Checks if further documents are available.
protected Node	composeKeyNode(MappingNode node)
protected void	composeMappingChildren(java.util.List<NodeTuple> children, MappingNode node)
protected Node	composeMappingNode(java.lang.String anchor)
private Node	composeNode(Node parent)
protected Node	composeScalarNode(java.lang.String anchor)
protected Node	composeSequenceNode(java.lang.String anchor)
protected Node	composeValueNode(MappingNode node)
Node	getNode()	Reads and composes the next document.
Node	getSingleNode()	Reads a document from a source that contains only one document.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

parser

protected final Parser parser

resolver

private final Resolver resolver

anchors

private final java.util.Map<java.lang.String,Node> anchors

recursiveNodes

private final java.util.Set<Node> recursiveNodes

nonScalarAliasesCount

private int nonScalarAliasesCount

loadingConfig

private final LoaderOptions loadingConfig

Constructor Detail

Composer

public Composer(Parser parser,
                Resolver resolver)

Composer

public Composer(Parser parser,
                Resolver resolver,
                LoaderOptions loadingConfig)

Method Detail

checkNode

public boolean checkNode()

Checks if further documents are available.

Returns:

true if there is at least one more document.

getNode

public Node getNode()

Reads and composes the next document.

Returns:

The root node of the document or null if no more documents are available.

getSingleNode

public Node getSingleNode()

Reads a document from a source that contains only one document.

If the stream contains more than one document an exception is thrown.

Returns:

The root node of the document or null if no document is available.

composeNode

private Node composeNode(Node parent)

composeScalarNode

protected Node composeScalarNode(java.lang.String anchor)

composeSequenceNode

protected Node composeSequenceNode(java.lang.String anchor)

composeMappingNode

protected Node composeMappingNode(java.lang.String anchor)

composeMappingChildren

protected void composeMappingChildren(java.util.List<NodeTuple> children,
                                      MappingNode node)

composeKeyNode

protected Node composeKeyNode(MappingNode node)

composeValueNode

protected Node composeValueNode(MappingNode node)