Java tutorial
/*! ****************************************************************************** * * Pentaho Data Integration * * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com * ******************************************************************************* * * Licensed 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.pentaho.di.trans.steps.solrinput; import org.pentaho.di.core.row.RowMetaInterface; import org.pentaho.di.trans.step.BaseStepData; import org.pentaho.di.trans.step.StepDataInterface; import java.util.ArrayList; import java.util.List; import org.apache.solr.client.solrj.impl.HttpSolrServer; import org.apache.solr.client.solrj.response.FacetField; import org.apache.solr.common.SolrDocumentList; /** * This class is part of the demo step plug-in implementation. * It demonstrates the basics of developing a plug-in step for PDI. * * The demo step adds a new string field to the row stream and sets its * value to "Hello World!". The user may select the name of the new field. * * This class is the implementation of StepDataInterface. * * Implementing classes inherit from BaseStepData, which implements the entire * interface completely. * * In addition classes implementing this interface usually keep track of * per-thread resources during step execution. Typical examples are: * result sets, temporary data, caching indexes, etc. * * The implementation for the demo step stores the output row structure in * the data class. * */ public class SolrInputData extends BaseStepData implements StepDataInterface { public RowMetaInterface outputRowMeta; public RowMetaInterface convertRowMeta; public int nrfields; public int recordIndex; public boolean facetRequested; public String facetCountName; public Object previousRow; public HttpSolrServer solr; public SolrDocumentList documentList; public List<FacetField.Count> facetCounts; public SolrInputData() { super(); recordIndex = 0; facetCountName = ""; facetRequested = false; documentList = new SolrDocumentList(); facetCounts = new ArrayList<FacetField.Count>(); } }