svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.api / src / main / java / org / gvsig / fmap / dal / feature / FeatureType.java @ 44435
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.dal.feature; |
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import java.util.Comparator; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.function.Predicate; |
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import org.apache.commons.lang3.StringUtils; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.tools.dataTypes.DataType; |
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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.gvsig.tools.dynobject.DynClass; |
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import org.gvsig.tools.dynobject.DynStruct_v2; |
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import org.gvsig.tools.evaluator.Evaluator; |
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import org.gvsig.tools.util.UnmodifiableBasicList; |
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/**
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* <p>
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* This interface provides all the information that describes the structure of a
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* type of feature, methods for managing it and also offers a variety of utility
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* methods for simplicity's sake.
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* </p>
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*
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* <p>
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* The relevant information that compounds a FeatureType includes:
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* </p>
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*
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* <ul>
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* <li> {@link FeatureAttributeDescriptor}(s)
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* <li> {@link FeatureRule}(s)
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* <li> Its size
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* <li> Its SRS(s)
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* <li> Its identifier
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* <li> Whether features of this type have an OID or not (identifier assigned by
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* the store).
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* </ul>
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*
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* <p>
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* Methods for management include:
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* </p>
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*
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* <ul>
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* <li>Obtaining its editable instance.
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* <li>Obtaining an iterator over its attributes.
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* <li>Knowing whether this FeatureType has any associated evaluator for
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* calculated attributes.
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* </ul>
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*
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* <p>
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* Utility methods include:
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* </p>
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*
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* <ul>
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* <li>Getting a copy of the FeatureType.
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* <li>Getting the default geometry attribute.
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* <li>Getting the default spatial reference system.
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* </ul>
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*/
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public interface FeatureType extends DynClass, DynStruct_v2, UnmodifiableBasicList<FeatureAttributeDescriptor> { |
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public static final Predicate<FeatureAttributeDescriptor> BASIC_TYPES_FILTER = new Predicate<FeatureAttributeDescriptor>() { |
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@Override
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public boolean test(FeatureAttributeDescriptor attrdesc) { |
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DataType t = attrdesc.getDataType(); |
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boolean r = !(t.isContainer() || t.isDynObject() || t.isObject());
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return r;
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} |
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}; |
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public static Predicate<FeatureAttributeDescriptor> ALL_FILTER = new Predicate<FeatureAttributeDescriptor>() { |
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@Override
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public boolean test(FeatureAttributeDescriptor t) { |
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return true; |
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} |
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}; |
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/**
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* Returns a new copy of this FeatureType
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*
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* @return a new copy of this FeatureType
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*/
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public FeatureType getCopy();
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public void copyFrom(FeatureType other); |
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/**
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* Returns a {@link FeatureRules} containing all rules applicable to
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* features of this type.
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*
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* @return a {@link FeatureRules} containing all rules applicable to
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* features of this type.
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*/
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public FeatureRules getRules();
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/**
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* Returns an editable instance of this FeatureType. Any modifications on a
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* FeatureType must be done through its editable instance.
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*
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* @return the editable instance of this FeatureType.
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*
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* @see EditableFeatureType
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*/
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public EditableFeatureType getEditable();
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/**
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* Given the name of an attribute, this method returns its position in this
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* FeatureType.
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*
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* @param name of the attribute
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* @return position of the attribute
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*/
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public int getIndex(String name); |
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/**
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* Returns an attribute descriptor given its name.
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*
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* @param name of the attribute
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* @return descriptor of the attribute, a
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* {@link FeatureAttributeDescriptor}.
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*/
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public Object get(String name); |
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/**
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* Returns an attribute descriptor given its index
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*
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* @param index of the attribute
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*
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* @return descriptor of the attribute, a {@link FeatureAttributeDescriptor}
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*/
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public FeatureAttributeDescriptor get(int index); |
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/**
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* Returns a {@link FeatureAttributeDescriptor} given the attribute name, or
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* null if an attribute with the given name does not exist.
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*
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* @param name of the attribute
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*
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* @return a {@link FeatureAttributeDescriptor}
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*/
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public FeatureAttributeDescriptor getAttributeDescriptor(String name); |
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/**
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* Returns a {@link FeatureAttributeDescriptor} given the attribute index.
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*
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* @param index of the attribute
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*
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* @return a {@link FeatureAttributeDescriptor}
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*/
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public FeatureAttributeDescriptor getAttributeDescriptor(int index); |
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/**
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* Returns an iterator over this FeatureType's attributes. Elements returned
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* by this iterator are of type {@link FeatureAttributeDescriptor}.
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*
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* @return An iterator over this FeatureType's
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* {@link FeatureAttributeDescriptor}s.
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*/
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public Iterator iterator(); |
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/**
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* Returns this FeatureType size. The size of a FeatureType is determined by
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* its number of attributes.
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*
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* @return this FeatureType size, defined as the number of attributes it is
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* composed of.
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*
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*/
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public int size(); |
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public boolean isEmpty(); |
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/**
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* Returns this FeatureType identifier. This identifier must always be equal
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* to a store.
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*
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* @return the identifier.
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*/
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public String getId(); |
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/**
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* Returns the name of the attribute that will be used as default geometry
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* attribute for those processes that require a geometry (for instance
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* rendering).
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*
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* @return name of the default geometry attribute.
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*/
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public String getDefaultGeometryAttributeName(); |
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/**
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* Returns the index of the attribute that will be used as default geometry
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* attribute.
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*
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* @return index of the default geometry attribute.
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*/
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public int getDefaultGeometryAttributeIndex(); |
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/**
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* Returns a list with the SRSs in which this FeatureType geometries are
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* expressed. Normally there may be one SRS for each attribute of type
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* {@link Geometry}.
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*
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* @return a list with the SRS in which this FeatureType geometries are
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* expressed.
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*/
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public List getSRSs(); |
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/**
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* Returns the SRS in which the default geometry attribute is expressed.
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*
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* @return the SRS in which the default geometry attribute is expressed,
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* null if not has a default geometry attribute.
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*/
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public IProjection getDefaultSRS();
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/**
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* Indicates whether this FeatureType has any assigned {@link Evaluator}(s).
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* Evaluators are used to obtain the values for calculated attributes.
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*
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* @return true if this FeatureType has any assigned {@link Evaluator}(s).
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*/
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public boolean hasEvaluators(); // FIXME: Quitar del interface y dejar en DefaultFeatureType |
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/**
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* Indicates whether {@link Feature}(s) of this FeatureType have an OID
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* defined. An OID is the Feature unique identifier.
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*
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* Some stores provide their own OIDs which are always unique (such as
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* Postgre) while others don't support this concept and then it is the
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* library who creates runtime ad-hoc OIDs as it see fits, but then
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* integrity of this OIDs among different work sessions cannot be guaranteed
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* (this is the case for shape files).
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*
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* @return true if this FeatureType has an OID defined, false otherwise.
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*
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*/
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public boolean hasOID(); |
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/**
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* Incicates if attibutes with automatic values are allowed in the source
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*
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* @return true if source supports this feature, false otherwise
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*/
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public boolean allowAutomaticValues(); |
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/**
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* Returns an Array of the FeatureAttributeDescriptor
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*
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* @return
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*/
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public FeatureAttributeDescriptor[] getAttributeDescriptors(); |
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/**
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* Returns an Array of the FeatureAttributeDescriptor that compounds the
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* primary key. If not have primary keys return a empty array.
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*
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* @return
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*/
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public FeatureAttributeDescriptor[] getPrimaryKey(); |
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public boolean hasPrimaryKey(); |
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public boolean supportReferences(); |
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/**
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* Returns the default geometry FeatureAttributeDescriptor. Return null if
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* it's not set
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*
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* @return
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*/
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public FeatureAttributeDescriptor getDefaultGeometryAttribute();
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/**
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* Returns the default time FeatureAttributeDescriptor. Return null if it's
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* not set.
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*
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* @return the default time attribute
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*/
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public FeatureAttributeDescriptor getDefaultTimeAttribute();
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/**
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* Returns the name of the attribute that will be used as default geometry
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* attribute for those processes that require a geometry (for instance
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* rendering).
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*
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* @return name of the default geometry attribute.
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*/
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public String getDefaultTimeAttributeName(); |
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/**
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* Returns the index of the attribute that will be used as default geometry
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* attribute.
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*
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* @return index of the default geometry attribute.
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*/
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public int getDefaultTimeAttributeIndex(); |
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/**
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* Return the store associated to this type.
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*
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* @return the FeatureStore of the type.
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*/
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public FeatureStore getStore();
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public List<FeatureAttributeDescriptor> getFilteredAttributes( |
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Predicate<FeatureAttributeDescriptor> filter,
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int max
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); |
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public List<FeatureAttributeDescriptor> getRecentUseds(); |
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} |