import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
/**
*/
public interface StatementSupport<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
extends StatementDefinition, StatementFactory<A, D, E> {
-
/**
* Returns public statement definition, which will be present in built statements.
*
/**
* Adapts the argument value to match a new module.
*
- * @param ctx
- * Context, which may be used to access source-specific
- * namespaces required for parsing.
- * @param targetModule
- * Target module, may not be null.
+ * @param ctx Context, which may be used to access source-specific namespaces required for parsing.
+ * @param targetModule Target module, may not be null.
* @return Adapted argument value. The default implementation returns original value stored in context.
*/
default A adaptArgumentValue(final StmtContext<A, D, E> ctx, final QNameModule targetModule) {
* accessible via {@link StmtContext#getParentContext()}. One such use is populating the parent's namespaces to
* allow it to locate this child statement.
*
- * @param stmt
- * Context of added statement. No substatements are available.
+ * @param stmt Context of added statement. No substatements are available.
*/
void onStatementAdded(StmtContext.Mutable<A, D, E> stmt);
* Implementation may use method to perform actions on this event or register modification action using
* {@link StmtContext.Mutable#newInferenceAction(ModelProcessingPhase)}.
*
- * @param stmt
- * Context of added statement.
+ * @param stmt Context of added statement.
*/
void onPreLinkageDeclared(StmtContext.Mutable<A, D, E> stmt);
* Implementation may use method to perform actions on this event or register modification action using
* {@link StmtContext.Mutable#newInferenceAction(ModelProcessingPhase)}.
*
- * @param stmt
- * Context of added statement.
- * @throws SourceException
- * when an inconsistency is detected.
+ * @param stmt Context of added statement.
+ * @throws SourceException when an inconsistency is detected.
*/
void onLinkageDeclared(StmtContext.Mutable<A, D, E> stmt);
* Implementation may use method to perform actions on this event or register modification action using
* {@link StmtContext.Mutable#newInferenceAction(ModelProcessingPhase)}.
*
- * @param stmt
- * Context of added statement. Argument and statement parent is
- * accessible.
- * @throws SourceException
- * when an inconsistency is detected.
+ * @param stmt Context of added statement. Argument and statement parent is accessible.
+ * @throws SourceException when an inconsistency is detected.
*/
void onStatementDefinitionDeclared(StmtContext.Mutable<A, D, E> stmt);
* Implementation may use method to perform actions on this event or register modification action using
* {@link StmtContext.Mutable#newInferenceAction(ModelProcessingPhase)}.
*
- * @param stmt
- * Context of added statement. Argument and statement parent is
- * accessible.
- * @throws SourceException
- * when an inconsistency is detected.
+ * @param stmt Context of added statement. Argument and statement parent is accessible.
+ * @throws SourceException when an inconsistency is detected.
*/
void onFullDefinitionDeclared(StmtContext.Mutable<A, D, E> stmt);
* If this support has argument specific supports, the method returns support specific for given argument
* (e.g. type statement support need to be specialized based on its argument), otherwise returns null.
*
- * @param argument
- * argument of statement
+ * @param argument argument of statement
* @return statement support specific for supplied argument or null
*/
@Nullable StatementSupport<?, ?, ?> getSupportSpecificForArgument(String argument);
+ /**
+ * Create an optional copy of specified statement as a substatement of parent.
+ *
+ * <p>
+ * Note that while it may be tempting to return the same context, this is not safe in general case. It is only safe
+ * if the entire subtree is unaffected by changes to parent/namespace/history. This includes the semantics of this
+ * statement (it cannot be a target of any inference effects) as well as any substatements -- an extension statement
+ * is allowed pretty much anywhere and if its semantics are context-dependent, a simple instance reuse will not
+ * work.
+ *
+ * @param stmt Context of statement to be copied statement.
+ * @param parent Parent statement context
+ * @param type Type of copy being performed
+ * @param targetModule Target module, if present
+ * @return Empty if the statement should be ignored, or present with an instance that should be copied into parent.
+ */
+ @NonNull Optional<? extends Mutable<?, ?, ?>> copyAsChildOf(Mutable<?, ?, ?> stmt, Mutable<?, ?, ?> parent,
+ CopyType type, @Nullable QNameModule targetModule);
+
/**
* Given a raw string representation of an argument, try to use a shared representation.
*
- * @param rawArgument
- * Argument string
+ * @param rawArgument Argument string
* @return A potentially-shard instance
*/
default String internArgument(final String rawArgument) {
/**
* Returns unknown statement form of a regular YANG statement supplied as a parameter to the method.
*
- * @param yangStmtDef
- * statement definition of a regular yang statement
- * @return Optional of unknown statement form of a regular yang statement or
- * Optional.empty() if it is not supported by this statement support
+ * @param yangStmtDef statement definition of a regular YANG statement
+ * @return Optional of unknown statement form of a regular YANG statement or empty() if it is not supported by this
+ * statement support
*/
default Optional<StatementSupport<?, ?, ?>> getUnknownStatementDefinitionOf(final StatementDefinition yangStmtDef) {
return Optional.empty();
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