org.netbeans.modules.schema2beans

Class DDRegistry.DDChangeMarker

java.lang.Object

org.netbeans.modules.schema2beans.DDRegistry.DDChangeMarker

Enclosing class:

DDRegistry

public static class DDRegistry.DDChangeMarker
extends Object

The goal of this class is to provide a simple way to know if a graph or a set of graphs had their content changed. The ChangeMarker can be used to implemenent a cache mechanism, in order to avoid parsing the graphs if nothing in the graph changed since the last parsing. A ChangeMarker is created by the registry, ddReg.newChangeMarker(). We can add to the changeMarger a BaseBean graph, a Cursor or another ChangeMarker. So, ChangeMarker can be nested, and any modification in a nested ChangeMarker would need that the upper ChangeMarker have been been modified.

Method Summary

Modifier and Type	Method and Description
void	add(BaseBean b) Add a graph to the marker list.
void	add(DDRegistry.DDChangeMarker cm) If any graph of the added marker change, the current marker is also considered changed.
void	add(DDRegistryParser.DDCursor c) Add the graph the cursor belongs to, to the marker list
String	dump() Dump all the registered markers
StringBuffer	dump(StringBuffer sb, String indent, long ts)
boolean	hasChanged() Return true if a change event happen between the last resetTime and now.
void	remove(BaseBean b)
void	remove(DDRegistry.DDChangeMarker cm) removal methods.
void	remove(DDRegistryParser.DDCursor c)
void	resetTime() Reset the marke change time.
int	size()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

size

public int size()

add

public void add(DDRegistry.DDChangeMarker cm)

If any graph of the added marker change, the current marker is also considered changed.

add

public void add(BaseBean b)

Add a graph to the marker list. If any change occurs in this graph after resetMarker() is called, hasChanged() would return true.

add

public void add(DDRegistryParser.DDCursor c)

Add the graph the cursor belongs to, to the marker list

remove

public void remove(DDRegistry.DDChangeMarker cm)

removal methods.

remove

public void remove(BaseBean b)

remove

public void remove(DDRegistryParser.DDCursor c)

resetTime

public void resetTime()

Reset the marke change time. Any change that happened before now are ignored.

hasChanged

public boolean hasChanged()

Return true if a change event happen between the last resetTime and now.

dump

public String dump()

Dump all the registered markers

dump

public StringBuffer dump(StringBuffer sb,
                         String indent,
                         long ts)

toString

public String toString()

Overrides:

toString in class Object