@Override
public <T extends Element> Set<String> getIndexedKeys(Class<T> elementClass) {
autoStartTransaction();
com.sparsity.dex.gdb.TypeList tlist = null;
com.sparsity.dex.gdb.Graph rawGraph = getRawGraph();
if (Vertex.class.isAssignableFrom(elementClass)) {
tlist = rawGraph.findNodeTypes();
} else if (Edge.class.isAssignableFrom(elementClass)) {
tlist = rawGraph.findEdgeTypes();
} else {
throw ExceptionFactory.classIsNotIndexable(elementClass);
}
Set<String> ret = new HashSet<String>();
for (Integer type : tlist) {
com.sparsity.dex.gdb.AttributeList alist = rawGraph.findAttributes(type);
for (Integer attr : alist) {
com.sparsity.dex.gdb.Attribute adata = rawGraph.getAttribute(attr);
if (adata.getKind() == AttributeKind.Indexed || adata.getKind() == AttributeKind.Unique) {
ret.add(adata.getName());
}
}
alist.delete();
alist = null;
}
tlist.delete();
tlist = null;
return ret;
}
/*
* (non-Javadoc)
*
* @see com.tinkerpop.blueprints.Graph#getEdges()
*/
@Override
public CloseableIterable<Edge> getEdges() {
autoStartTransaction();
com.sparsity.dex.gdb.Graph rawGraph = getRawGraph();
com.sparsity.dex.gdb.TypeList tlist = rawGraph.findEdgeTypes();
List<Iterable<Edge>> edges = new ArrayList<Iterable<Edge>>();
for (Integer type : tlist) {
com.sparsity.dex.gdb.Objects objs = rawGraph.select(type);
edges.add(new DexIterable<Edge>(this, objs, Edge.class));
}
tlist.delete();
tlist = null;
return new MultiIterable<Edge>(edges);
}
/**
* Returns an iterable to all the edges in the graph that have a particular key/value property.
*
* <p>In case key is {@link StringFactory#LABEL}, it returns an iterable of all the edges having
* the given value as the label (therefore, belonging to the given type).
*
* <p>In case {@link #label} is null, it will return all edges having a particular key/value no
* matters the type. In case {@link #label} is not null, it will return all edges having a
* particular key/value belonging to the given type.
*
* @see com.tinkerpop.blueprints.Graph#getEdges(String, Object)
* @see #label
*/
@Override
public CloseableIterable<Edge> getEdges(final String key, final Object value) {
autoStartTransaction();
com.sparsity.dex.gdb.Graph rawGraph = getRawGraph();
if (key.compareTo(StringFactory.LABEL) == 0) { // label is "indexed"
int type = rawGraph.findType(value.toString());
if (type != com.sparsity.dex.gdb.Type.InvalidType) {
com.sparsity.dex.gdb.Type tdata = rawGraph.getType(type);
if (tdata.getObjectType() == ObjectType.Edge) {
com.sparsity.dex.gdb.Objects objs = rawGraph.select(type);
return new DexIterable<Edge>(this, objs, Edge.class);
}
}
return null;
}
String label = this.label.get();
if (label == null) { // all vertex types
com.sparsity.dex.gdb.TypeList tlist = rawGraph.findEdgeTypes();
List<Iterable<Edge>> edges = new ArrayList<Iterable<Edge>>();
for (Integer type : tlist) {
int attr = rawGraph.findAttribute(type, key);
if (com.sparsity.dex.gdb.Attribute.InvalidAttribute != attr) {
com.sparsity.dex.gdb.Attribute adata = rawGraph.getAttribute(attr);
if (adata.getKind() == AttributeKind.Basic) { // "table" scan
com.sparsity.dex.gdb.Objects objs = rawGraph.select(type);
edges.add(
new PropertyFilteredIterable<Edge>(
key, value, new DexIterable<Edge>(this, objs, Edge.class)));
} else { // use the index
edges.add(new DexIterable<Edge>(this, this.rawGet(adata, value), Edge.class));
}
}
}
tlist.delete();
tlist = null;
if (edges.size() > 0) return new MultiIterable<Edge>(edges);
else throw new IllegalArgumentException("The given attribute '" + key + "' does not exist");
} else { // restricted to a type
int type = rawGraph.findType(label);
if (type == com.sparsity.dex.gdb.Type.InvalidType) {
throw new IllegalArgumentException("Unnexisting edge label: " + label);
}
com.sparsity.dex.gdb.Type tdata = rawGraph.getType(type);
if (tdata.getObjectType() != com.sparsity.dex.gdb.ObjectType.Edge) {
throw new IllegalArgumentException("Given label is not a edge label: " + label);
}
int attr = rawGraph.findAttribute(type, key);
if (com.sparsity.dex.gdb.Attribute.InvalidAttribute == attr) {
throw new IllegalArgumentException(
"The given attribute '"
+ key
+ "' does not exist for the given edge label '"
+ label
+ "'");
}
com.sparsity.dex.gdb.Attribute adata = rawGraph.getAttribute(attr);
if (adata.getKind() == AttributeKind.Basic) { // "table" scan
com.sparsity.dex.gdb.Objects objs = rawGraph.select(type);
return new PropertyFilteredIterable<Edge>(
key, value, new DexIterable<Edge>(this, objs, Edge.class));
} else { // use the index
return new DexIterable<Edge>(this, this.rawGet(adata, value), Edge.class);
}
}
}