GraphIO (SNAP Engine API)

java.lang.Object
- org.esa.snap.core.gpf.graph.GraphIO

```
public class GraphIO
extends Object
```
The GraphIO class contains methods for the serialization/deserialization of XML-based Graph definitions.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Graph`	`read(Reader reader)`	Deserializes a `graph` from an XML Reader.
`static Graph`	`read(Reader reader, Map<String,String> variables)`	Deserializes a `Graph` from a XML Reader using a mapping for the substitution of template variables inside the XML-based `Graph` definition.
`static void`	`write(Graph graph, Writer writer)`	Serializes the given `graph` into XML

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

- Method Detail
  - write
```
public static void write(Graph graph,
                         Writer writer)
```
    Serializes the given graph into XML
    
    Parameters:
    
    graph - the graph to write into XML
    
    writer - the writer to use for serialization.
  - read
```
public static Graph read(Reader reader)
                  throws GraphException
```
    Deserializes a graph from an XML Reader.
    
    Parameters:
    
    reader - the readerto use for deserialization
    
    Returns:
    
    the deserialized graph
    
    Throws:
    
    GraphException - if an error occurs during reading
  - read
```
public static Graph read(Reader reader,
                         Map<String,String> variables)
                  throws GraphException
```
    Deserializes a Graph from a XML Reader using a mapping for the substitution of template variables inside the XML-based Graph definition.
    
    Parameters:
    
    reader - the XML reader
    
    variables - a mapping from template variable names to their string values.
    
    Returns:
    
    the deserialized graph
    
    Throws:
    
    GraphException - if an error occurs during reading