package org.opendaylight.controller.md.sal.dom.api;
import org.opendaylight.controller.md.sal.common.api.data.AsyncWriteTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+/**
+ * A transaction that provides mutation capabilities on a data tree.
+ * <p>
+ * For more information on usage and examples, please see the documentation in {@link AsyncWriteTransaction}.
+ */
public interface DOMDataWriteTransaction extends AsyncWriteTransaction<InstanceIdentifier, NormalizedNode<?, ?>> {
+ /**
+ * Stores a piece of data at the specified path. This acts as an add / replace
+ * operation, which is to say that whole subtree will be replaced by the specified data.
+ * <p>
+ * For more information on usage and examples, please see the documentation in {@link AsyncWriteTransaction}.
+ * <p>
+ * If you need to make sure that a parent object exists but you do not want modify
+ * its pre-existing state by using put, consider using {@link #merge} instead.
+ *
+ * @param store
+ * the logical data store which should be modified
+ * @param path
+ * the data object path
+ * @param data
+ * the data object to be written to the specified path
+ * @throws IllegalStateException
+ * if the transaction has already been submitted
+ */
+ void put(LogicalDatastoreType store, InstanceIdentifier path, NormalizedNode<?, ?> data);
+
+ /**
+ * Merges a piece of data with the existing data at a specified path. Any pre-existing data
+ * which is not explicitly overwritten will be preserved. This means that if you store a container,
+ * its child lists will be merged.
+ * <p>
+ * For more information on usage and examples, please see the documentation in {@link AsyncWriteTransaction}.
+ *<p>
+ * If you require an explicit replace operation, use {@link #put} instead.
+ *
+ * @param store
+ * the logical data store which should be modified
+ * @param path
+ * the data object path
+ * @param data
+ * the data object to be merged to the specified path
+ * @throws IllegalStateException
+ * if the transaction has already been submitted
+ */
+ void merge(LogicalDatastoreType store, InstanceIdentifier path, NormalizedNode<?, ?> data);
}