svn-gvsig-desktop / tags / dal_time_support_Build_1 / libraries / libFMap_dal / src / org / gvsig / fmap / dal / DataManager.java @ 36111
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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 2
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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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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2008 IVER T.I. S.A. {{Task}}
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*/
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package org.gvsig.fmap.dal; |
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import java.util.List; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException; |
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import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeGetter; |
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import org.gvsig.fmap.dal.feature.FeatureIndex; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.paging.FeaturePagingHelper; |
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import org.gvsig.fmap.dal.feature.spi.index.FeatureIndexProvider; |
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import org.gvsig.fmap.dal.resource.ResourceManager; |
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import org.gvsig.fmap.dal.store.memory.MemoryStoreProvider; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.evaluator.Evaluator; |
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import org.gvsig.tools.exception.BaseException; |
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/**
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* There are two top level management roles within DAL: data access and resource management.
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*
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* This class is responsible of the data access management role. It provides ways
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* for registering and instantiating {@link DataServerExplorer}(s), {@link DataStore}(s),
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* {@link Evaluator}(s) and {@link FeatureIndex}(es).
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*
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* @see ResourceManager
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*
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*/
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public interface DataManager { |
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/**
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* Returns the default DAL's temporary directory
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*
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* @return Temporary directory name
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*/
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public String getTemporaryDirectory(); |
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/*
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* ====================================================================
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*
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* Store related services
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*/
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/**
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* Creates, initializes and returns an instance of DataStoreParameters given
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* the name with which their provider is registered.
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*
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* @param name
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* provider name
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*
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* @throws ProviderNotRegisteredException
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* if the memory provider is not registered
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* @throws InitializeException
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* if there is an error initializing the parameters for the
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* memory provider
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**/
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public DataStoreParameters createStoreParameters(String name) |
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throws InitializeException, ProviderNotRegisteredException;
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/**
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*
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* Creates, initializes and returns an instance of NewDataStoreParameters
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* given the name with which their provider is registered.
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*
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* @param name
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*
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* @throws InitializeException
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* @throws ProviderNotRegisteredException
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*/
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public NewDataStoreParameters createNewStoreParameters(String explorer, String provider) |
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throws InitializeException, ProviderNotRegisteredException;
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/**
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*
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* Creates, initializes and returns an instance of DataStore given the
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* DataStoreParameters.
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*
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* @param parameters
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* parameters used to instantiate and initialize the DataStore
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*
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* @throws ProviderNotRegisteredException
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* if the memory provider is not registered
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* @throws InitializeException
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* if there is an error initializing the parameters for the
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* memory provider
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* @throws ValidateDataParametersException
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* if the parameters to open the memory based store are not
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* valid
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*/
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public DataStore openStore(String provider, DataStoreParameters parameters) |
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throws InitializeException, ProviderNotRegisteredException,
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ValidateDataParametersException; |
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/**
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* @deprecated see openStore
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*/
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public DataStore createStore(DataStoreParameters parameters)
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throws InitializeException, ProviderNotRegisteredException,
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ValidateDataParametersException; |
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/**
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* Create a new physical store
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*
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* @param parameters
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*
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* @throws InitializeException
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* @throws ProviderNotRegisteredException
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* @throws ValidateDataParametersException
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*/
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public void newStore(String explorer, String provider, NewDataStoreParameters parameters, boolean overwrite) |
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throws InitializeException, ProviderNotRegisteredException,
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ValidateDataParametersException; |
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/**
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* Returns a list of Strings containing the names of all available DataStore
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* providers.
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*
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* @return list of String containing available DataStore provider names
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*/
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public List getStoreProviders(); |
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/**
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* Returns a list of Strings containing the names of all available DataStore
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* providers for an explorer.
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*
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* @param explorer
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* name
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*/
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public List getStoreProviders(String name); |
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/*
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* ====================================================================
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*
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* Explorer related services
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*/
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/**
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* Returns an instance of {@link DataServerExplorerParameters} corresponding to
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* the given name.
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*
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* @param name
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* name of a registered server explorer provider
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*
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* @throws InitializeException
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* if parameter initialization causes an error.
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*
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* @throws ProviderNotRegisteredException
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* if could not find a provider by the given name.
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*
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**/
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public DataServerExplorerParameters createServerExplorerParameters(
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String name)
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throws InitializeException, ProviderNotRegisteredException;
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/**
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* Returns an instance of {@link DataServerExplorer} given its parameters.
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*
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* @param parameters
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* parameters used to instantiate and initialize the
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* {@link DataServerExplorer}.
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*
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* @return an instance of {@link DataServerExplorer}.
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*
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* @throws InitializeException
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*
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* @throws ProviderNotRegisteredException
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* @throws ValidateDataParametersException
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*/
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public DataServerExplorer openServerExplorer(
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String name,
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DataServerExplorerParameters parameters) |
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throws InitializeException, ProviderNotRegisteredException,
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ValidateDataParametersException; |
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/**
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* @deprecated see openServerExplorer
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*/
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public DataServerExplorer createServerExplorer(
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DataServerExplorerParameters parameters) |
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throws InitializeException, ProviderNotRegisteredException,
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ValidateDataParametersException; |
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/**
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* Returns a list of String containing the names of the available
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* DataServerExplorer providers.
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*
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* @return list of String containing the names of the available
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* DataServerExplorer providers.
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*/
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public List getExplorerProviders(); |
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/*
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* ====================================================================
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*
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* Expression evaluation related services
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*/
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/**
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* Registers the default expression evaluator. It is used by DAL to evaluate
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* and resolve query filters and expressions.
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*
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* @param evaluator
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* Class that will be called to evaluate the expression. It must
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* implement {@link Evaluator}.
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*/
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public void registerDefaultEvaluator(Class evaluator); |
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/**
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* Creates an instance of Evaluator that represents the given expression.
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*
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* @param expression
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* String containing a CQL expression.
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* @return instance of Evaluator representing the given expression.
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* @throws InitializeException
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*/
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public Evaluator createExpresion(String expression) |
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throws InitializeException;
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/*
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* ====================================================================
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*
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* Index related services
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*/
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/**
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* Returns a list of String containing the names of the available index providers.
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*
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* @return
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* list of strings with the names of the available index providers
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*/
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public List getFeatureIndexProviders(); |
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/**
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* Sets the default DataIndexProvider for the given data type.
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*
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* @param dataType
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* one of the data types defined in {@link DataTypes}.
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* @param name
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* Provider's name
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*/
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public void setDefaultFeatureIndexProviderName(int dataType, String name); |
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/**
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* Returns the default DataIndexProvider name, given a data type. Data types
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* are defined in {@link DataTypes}.
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*
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* @param dataType
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* one of the constants in {@link DataTypes}.
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*
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* @return
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* the name of the default {@link FeatureIndexProvider} if there is
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* anyone available for the given data type.
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*/
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public String getDefaultFeatureIndexProviderName(int dataType); |
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/**
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* Returns a list of String containing the names of the available cache providers.
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*
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* @return
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* list of strings with the names of the available cache providers
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*/
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public List getFeatureCacheProviders(); |
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/**
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* Returns an instance of {@link DataServerExplorerParameters} corresponding
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* to the given name used by the cache to create a store to save the
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* retrieved data.
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*
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* @param name
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* name of a registered feature cache provider
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*
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* @throws InitializeException
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* if parameter initialization causes an error.
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*
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* @throws ProviderNotRegisteredException
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* if could not find a cache provider by the given name.
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*
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*/
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public DynObject createCacheParameters(String name) |
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throws InitializeException, ProviderNotRegisteredException;
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/**
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* Utility method to create the {@link DataStoreParameters} to create a
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* {@link FeatureStore} based on the {@link MemoryStoreProvider}.
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*
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* @param autoOrderAttributeName
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* the name of the {@link Feature} attribute to be used to order
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* the store {@link Feature}s by default. Set to null if you
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* don't want any order by default
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* @return the parameters for the memory based store
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* @throws InitializeException
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* if there is an error initializing the parameters for the
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* memory provider
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*/
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public DataStoreParameters createMemoryStoreParameters(
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String autoOrderAttributeName) throws InitializeException; |
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/**
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* Utility method to create the a {@link FeatureStore} based on the
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* {@link MemoryStoreProvider}.
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*
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* @param autoOrderAttributeName
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* the name of the {@link Feature} attribute to be used to order
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* the store {@link Feature}s by default. Set to null if you
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* don't want any order by default
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* @return the the memory based store
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* @throws InitializeException
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* if there is an error initializing the parameters for the
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* memory provider
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*/
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public FeatureStore createMemoryStore(String autoOrderAttributeName) |
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throws InitializeException;
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/**
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* Creates a {@link FeaturePagingHelper} to paginate data from a
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* {@link FeatureStore}.
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*
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* @param featureStore
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* to get the {@link Feature}s from
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* @param pageSize
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* the page size
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* @return a {@link FeaturePagingHelper}
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* @throws BaseException
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* if there is an error creating the helper
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*/
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public FeaturePagingHelper createFeaturePagingHelper(
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FeatureStore featureStore, int pageSize) throws BaseException; |
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/**
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* Creates a {@link FeaturePagingHelper} to paginate data from a
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* {@link FeatureStore}.
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*
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* @param featureStore
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* to get the {@link Feature}s from
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* @param featureQuery
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* to filter and/or order the data
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* @param pageSize
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* the page size
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* @return a {@link FeaturePagingHelper}
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* @throws BaseException
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* if there is an error creating the helper
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*/
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public FeaturePagingHelper createFeaturePagingHelper(
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FeatureStore featureStore, FeatureQuery featureQuery, int pageSize)
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throws BaseException;
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/**
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* Registers a class that can be used to create a {@link FeatureAttributeGetter}
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* and associate it to a {@link FeatureAttributeDescriptor}.
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*
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* @param name
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* the name used to register the class.
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* @param clazz
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* it has to be an instance of {@link FeatureAttributeDescriptor}
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*/
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public void registerFeatureAttributeGetter(String name, Class clazz); |
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/**
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* Creates a {@link FeatureAttributeGetter} by name. If there is not any class
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* registered with this name or if there is any error an exception is thrown.
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*
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* @param name
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* the name that was used to register the class
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* @return
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* a {@link FeatureAttributeGetter}
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* @throws InitializeException
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* if there is any error creating the object
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*/
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public FeatureAttributeGetter createFeatureAttributeGetter(String name) throws InitializeException; |
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public void setOpenErrorHandler(OpenErrorHandler handler); |
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} |