| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.uima.search; |
| |
| import java.io.Serializable; |
| |
| import org.apache.uima.util.XMLizable; |
| |
| /** |
| * An indexing style. A set of indexing sytles make up a {@link IndexRule}, which is then applied |
| * to an {@link IndexBuildItem} in order to assign indexing behavior to an annotation type. |
| * <p> |
| * We support an open-ended schema for styles. Each style has a {@link #getName() name} and zero or |
| * more {@link #getAttributes()}, where each attribute has a name and a value. Any given indexer |
| * implementation can declare which styles it implements, and which attributes it supports. An |
| * indexer should gracefully handle unknown styles or attributes and report them in an appropriate |
| * manner. |
| * <p> |
| * The following styles and attributes are currently defined: |
| * <ul> |
| * <li><b>Term</b> - the span of this annotation indicates a single token. |
| * <ul> |
| * <li><b>lemma</b> - the value of this optional attribute is the name of the feature whose value |
| * should be taken as the token to index. If not specified, the covered text of the annotation will |
| * be indexed.</li> |
| * </ul> |
| * </li> |
| * <li><b>Breaking</b> - the indexer should record a sentence boundary before and after the span |
| * of this annotation. |
| * <ul> |
| * <li>no attributes defined</li> |
| * </ul> |
| * </li> |
| * <li><b>Annotation</b> - this annotation should be recorded in the index as a span that can be |
| * queried by the user. |
| * <ul> |
| * <li>fixedName - the value of this optional attribute is the name to assign to the span in the |
| * index. If neither this nor <i>nameFeature</i> is specified, the annotation's exact type name, |
| * without namespace, will be indexed.</li> |
| * <li>nameFeature - the value of this optional attribute is the name to a feature whose value will |
| * be used as the name of the span in the index. If neither this nor <i>fixedName</i> is specified, |
| * the annotation's exact type name, without namespace, will be indexed. It is an error to give |
| * values for both <i>nameFeature</i> and <i>fixedName</i>.</li> |
| * </ul> |
| * An annotation style can also have {@link #getAttributeMappings() attribute mappings}, which |
| * specify which how the features (properties) of the annotation should be indexed. </li> |
| * </ul> |
| * This object implements the {@link XMLizable} interface and can be parsed from an XML |
| * representation. |
| * |
| * |
| */ |
| public interface Style extends XMLizable, Serializable { |
| |
| /** |
| * Gets the name of this style. See the class comment for a list of defined style names. |
| * Implementations must make sure that all names are {@link String#intern()}ed so that they can |
| * be compared with the == operator. |
| * |
| * @return the name of this style |
| */ |
| public String getName(); |
| |
| /** |
| * Sets the name of this style. See the class comment for a list of defined style names. |
| * Implementations must make sure that all names are {@link String#intern()}ed so that they can |
| * be compared with the == operator. |
| * |
| * @param aName |
| * the name of this style |
| */ |
| public void setName(String aName); |
| |
| /** |
| * Gets the <code>Attribute</code>s for this style. See the class comment for a list of defined |
| * attributes for each style name. |
| * |
| * @return the attibutes for this style. |
| */ |
| public Attribute[] getAttributes(); |
| |
| /** |
| * Sets the <code>Attribute</code>s for this style. See the class comment for a list of defined |
| * attributes for each style name. |
| * |
| * @param aAttributes |
| * the attibutes for this style. |
| */ |
| public void setAttributes(Attribute[] aAttributes); |
| |
| /** |
| * Gets the value of an attribute with the given name. |
| * |
| * @param aName |
| * name of an attribute |
| * |
| * @return the value of the named attribute, null if there is no such attribute declared on this |
| * style |
| */ |
| public String getAttribute(String aName); |
| |
| /** |
| * Gets the mappings that specify which features (properties) of the annotation should be indexed, |
| * and under which names. |
| * |
| * @return an array of objects that each specify a mapping from a CAS feature name to the name |
| * under which this feature should be recorded in the index. |
| */ |
| public Mapping[] getAttributeMappings(); |
| |
| /** |
| * Sets the mappings that specify which features (properties) of the annotation should be indexed, |
| * and under which names. |
| * |
| * @pram aMappings an array of objects that each specify a mapping from a CAS feature name to the |
| * name under which this feature should be recorded in the index. |
| */ |
| public void setAttributeMappings(Mapping[] aMappings); |
| |
| /** |
| * Constant for the name of the Term style. |
| */ |
| public static final String TERM = "Term"; |
| |
| /** |
| * Constant for the name of the Breaking style. |
| */ |
| public static final String BREAKING = "Breaking"; |
| |
| /** |
| * Constant for the name of the Annotation style. |
| */ |
| public static final String ANNOTATION = "Annotation"; |
| } |