svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / expressionevaluator / impl / grammars / DataAccessGrammarFactory.java @ 46088
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2020 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.expressionevaluator.impl.grammars; |
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|
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import java.util.UUID; |
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import org.gvsig.expressionevaluator.Code; |
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import org.gvsig.expressionevaluator.CodeBuilder; |
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import org.gvsig.expressionevaluator.Codes; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
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import org.gvsig.expressionevaluator.Grammar; |
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import org.gvsig.expressionevaluator.Statement; |
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import org.gvsig.expressionevaluator.Statement.ArgsBuilder; |
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import org.gvsig.expressionevaluator.Statement.StatementContext; |
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import org.gvsig.expressionevaluator.impl.DALFunctions; |
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import org.gvsig.expressionevaluator.impl.DefaultCodeBuilder.BaseCodes; |
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import org.gvsig.expressionevaluator.impl.DefaultStatement; |
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import org.gvsig.expressionevaluator.impl.DefaultStatement.ArgsBuilderFromNames; |
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import org.gvsig.expressionevaluator.impl.function.dataaccess.ExistsFunction; |
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import org.gvsig.expressionevaluator.spi.AbstractGrammarFactory; |
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import static org.gvsig.fmap.dal.DataManager.FUNCTION_FOREING_VALUE; |
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import static org.gvsig.fmap.dal.DataManager.FUNCTION_SELECT; |
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import static org.gvsig.fmap.dal.DataManager.FUNCTION_SELECT_COUNT; |
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import org.gvsig.expressionevaluator.Code.Callable; |
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import org.gvsig.fmap.dal.DataManager; |
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import static org.gvsig.fmap.dal.DataManager.FUNCTION_CREATE_TABLE; |
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import static org.gvsig.fmap.dal.DataManager.FUNCTION_CREATE_TABLE_STRUCTURE; |
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|
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/**
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*
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* @author jjdelcerro
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*/
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public class DataAccessGrammarFactory extends AbstractGrammarFactory { |
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private Grammar grammar;
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private static class ExistsStatementBuilder extends DefaultStatement.StatementBuilderBase { |
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private final String listID; |
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private final String existsID; |
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public ExistsStatementBuilder(String listID, String existsID) { |
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super(ExistsFunction.NAME, new ArgsBuilderFromNames(listID, existsID)); |
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this.listID = listID;
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this.existsID = existsID;
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} |
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@Override
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public Code build(StatementContext context) {
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CodeBuilder codeBuilder = context.getCodeBuilder(); |
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Callable code = (Callable) super.build(context); |
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BaseCodes args = (BaseCodes) code.parameters(); |
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if (args.size() < 2) { |
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String exists_id = "EXISTS" + UUID.randomUUID().toString().replaceAll("-", ""); |
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args.add(codeBuilder.constant(exists_id)); |
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} else if (args.get(1) == null) { |
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String exists_id = "EXISTS" + UUID.randomUUID().toString().replaceAll("-", ""); |
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args.set(1, codeBuilder.constant(exists_id));
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} |
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code = codeBuilder.function(ExistsFunction.NAME, args); |
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return code;
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} |
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} |
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private static class SelectArgsBuilder implements ArgsBuilder { |
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public SelectArgsBuilder() {
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} |
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@Override
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public String toString() { |
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return "select_args()"; |
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} |
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@Override
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public Codes build(StatementContext context) {
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context.trace(this.toString() + ".build"); |
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CodeBuilder codeBuilder = context.getCodeBuilder(); |
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BaseCodes args = (BaseCodes) codeBuilder.args(); |
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return build(context, args);
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} |
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public Codes build(StatementContext context, BaseCodes args) {
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int n;
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BaseCodes argsX; |
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CodeBuilder codeBuilder = context.getCodeBuilder(); |
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Code columns = context.getCode("COLUMNS");
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args.add(columns); |
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Code table = context.getCode("TABLE");
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args.add(table); |
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Code where = context.getCode("WHERE");
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if (where == null) { |
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args.add(codeBuilder.constant(null));
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} else {
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args.add(where); |
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} |
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n = 1;
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argsX = (BaseCodes) codeBuilder.args(); |
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while (true) { |
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String argNameX = "ORDER" + String.valueOf(n); |
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Code code = context.getCode(argNameX); |
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if (code == null) { |
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break;
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} |
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argsX.add(code); |
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n++; |
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} |
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args.add(codeBuilder.tuple(argsX)); |
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n = 1;
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argsX = (BaseCodes) codeBuilder.args(); |
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while (true) { |
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String argNameX = "ORDER_MODE" + String.valueOf(n); |
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Code code = context.getCode(argNameX); |
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if (code == null) { |
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break;
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} |
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argsX.add(code); |
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n++; |
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} |
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args.add(codeBuilder.tuple(argsX)); |
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Code limit = context.getCode("LIMIT");
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if (limit == null) { |
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args.add(codeBuilder.constant(null));
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} else {
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args.add(limit); |
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} |
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return args;
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} |
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} |
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private static class InsertIntoArgsBuilder |
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extends SelectArgsBuilder
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implements ArgsBuilder {
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public InsertIntoArgsBuilder() {
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} |
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@Override
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public String toString() { |
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return "insert_into_args()"; |
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} |
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@Override
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public Codes build(StatementContext context) {
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context.trace(this.toString() + ".build"); |
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CodeBuilder codeBuilder = context.getCodeBuilder(); |
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BaseCodes args = (BaseCodes) codeBuilder.args(); |
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Code table = context.getCode("TARGETTABLE");
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args.add(codeBuilder.identifier((String) ((Code.Constant) table).value()));
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return build(context, args);
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} |
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} |
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private static class SelectCountArgsBuilder implements ArgsBuilder { |
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public SelectCountArgsBuilder() {
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} |
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@Override
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public String toString() { |
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return "select_count_args()"; |
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} |
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@Override
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public Codes build(StatementContext context) {
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context.trace(this.toString() + ".build"); |
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CodeBuilder codeBuilder = context.getCodeBuilder(); |
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BaseCodes args = (BaseCodes) codeBuilder.args(); |
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Code table = context.getCode("table");
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Code where = context.getCode("where");
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args.add(table); |
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if (where == null) { |
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args.add(codeBuilder.constant(null));
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} else {
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args.add(where); |
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} |
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return args;
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} |
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} |
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public DataAccessGrammarFactory() {
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super(DALFunctions.GRAMMAR_NAME, true); |
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} |
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@Override
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public Grammar create(Object... parameters) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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if (this.grammar == null) { |
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Grammar theGrammar = manager.createGrammar(this.getName());
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theGrammar.addStatement(createCreateInMemoryTableStatement(theGrammar)); |
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theGrammar.addStatement(createCreateTableStatement(theGrammar)); |
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theGrammar.addStatement(createCreateTableStructureStatement(theGrammar)); |
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theGrammar.addStatement(createExistsStatement(theGrammar)); |
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theGrammar.addStatement(createForeingValueStatement(theGrammar)); |
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theGrammar.addStatement(createInsertIntoTableSelectStatement(theGrammar)); |
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theGrammar.addStatement(createSelectCountStatement(theGrammar)); |
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theGrammar.addStatement(createSelectStatement(theGrammar)); |
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// theGrammar.addStatement(createUpdateStatement(theGrammar));
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this.grammar = theGrammar;
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} |
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return grammar;
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} |
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private Statement createExistsStatement(Grammar theGrammar) { |
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//
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// EXISTS( SELECT...)
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//
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Statement stmt;
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theGrammar.addReservedWord("EXISTS");
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stmt = theGrammar.createStatement("EXISTS");
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stmt.addRule(stmt.require_any_token("EXISTS"));
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stmt.addRule(stmt.require_any_token("("));
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stmt.addRule(stmt.require_expression().capture_as("LIST"));
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stmt.addRule(stmt.optional_any_token(",")
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.addRuleOnTrue(stmt.require_expression().capture_as("ID"))
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); |
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stmt.addRule(stmt.require_any_token(")"));
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stmt.builder(new ExistsStatementBuilder("LIST", "ID")); |
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return stmt;
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} |
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private Statement createForeingValueStatement(Grammar theGrammar) { |
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Statement stmt;
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//
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// FOREING VALUE FROM table_name.column_name
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//
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theGrammar.addReservedWord("FROM");
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stmt = theGrammar.createStatement("FOREING_VALUE");
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stmt.addRule(stmt.require_any_token("FOREING"));
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stmt.addRule(stmt.require_any_token("VALUE"));
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stmt.addRule(stmt.require_any_token("FROM"));
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stmt.addRule(stmt.require_identifiers(".").capture_as("IDENTIFIERS")); |
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stmt.code( |
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FUNCTION_FOREING_VALUE, |
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stmt.args_names("IDENTIFIERS")
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); |
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return stmt;
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} |
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private Statement createCreateInMemoryTableStatement(Grammar theGrammar) { |
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Statement stmt;
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//
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// CREATE IN MEMORY TABLE target_table_name FROM source_table_name
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//
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theGrammar.addReservedWord("FROM");
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stmt = theGrammar.createStatement("CREATE_IN_MEMORY_TABLE");
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stmt.addRule(stmt.require_any_token("CREATE"));
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stmt.addRule(stmt.require_any_token("IN"));
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stmt.addRule(stmt.require_any_token("MEMORY"));
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stmt.addRule(stmt.require_any_token("TABLE"));
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stmt.addRule(stmt.require_identifier().capture_as("NEWTABLE"));
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stmt.addRule(stmt.require_any_token("FROM"));
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stmt.addRule(stmt.require_identifier().capture_as("SOURCETABLE"));
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stmt.code( |
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FUNCTION_FOREING_VALUE, |
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stmt.args_names("NEWTABLE", "SOURCETABLE") |
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); |
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return stmt;
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} |
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private Statement createSelectStatement(Grammar theGrammar) { |
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Statement stmt;
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//
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// SELECT * | (column1, column2,...)
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// FROM table_name
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// WHERE expression
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// ORDER BY expression1 ASC|DESC, expression2 ASC|DESC ...
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// LIMIT expression
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//
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theGrammar.addReservedWord("SELECT");
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theGrammar.addReservedWord("FROM");
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theGrammar.addReservedWord("WHERE");
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theGrammar.addReservedWord("ORDER");
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theGrammar.addReservedWord("BY");
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theGrammar.addReservedWord("DESC");
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theGrammar.addReservedWord("ASC");
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theGrammar.addReservedWord("LIMIT");
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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CodeBuilder codeBuilder = manager.createCodeBuilder(); |
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stmt = theGrammar.createStatement("SELECT");
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stmt.addRule(stmt.require_any_token("SELECT"));
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stmt.addRule(stmt.optional_any_token("*")
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.addRuleOnTrue(stmt.set_expression("COLUMNS", codeBuilder.tuple()))
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.addRuleOnFalse(stmt.require_identifiers(",").capture_as("COLUMNS")) |
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); |
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stmt.addRule(stmt.require_any_token("FROM"));
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stmt.addRule(stmt.require_expression().capture_as("TABLE"));
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stmt.addRule(stmt.optional_any_token("WHERE")
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.addRuleOnTrue(stmt.require_expression().capture_as("WHERE"))
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); |
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stmt.addRule(stmt.optional_any_token("ORDER")
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.addRuleOnTrue(stmt.require_any_token("BY"))
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.addRuleOnTrue(stmt.repeat() |
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.addRule(stmt.require_expression().capture_as("ORDER#"))
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.addRule(stmt.switch_token() |
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.addCase("ASC", stmt.set_expression("ORDER_MODE#", true)) |
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.addCase("DESC", stmt.set_expression("ORDER_MODE#", false)) |
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.addDefault(stmt.set_expression("ORDER_MODE#", true)) |
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) |
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.addRule(stmt.optional_any_token(",")
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.addRuleOnFalse(stmt.break_loop()) |
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) |
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) |
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); |
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stmt.addRule(stmt.optional_any_token("LIMIT")
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.addRuleOnTrue(stmt.require_expression().capture_as("LIMIT"))
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); |
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stmt.addRule(stmt.optional_any_token(";"));
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stmt.code( |
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FUNCTION_SELECT, |
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new SelectArgsBuilder()
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); |
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return stmt;
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} |
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private Statement createInsertIntoTableSelectStatement(Grammar theGrammar) { |
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Statement stmt;
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//
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// INSERT INTO target_table_name
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// SELECT
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// FROM table_name
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// WHERE expression
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// ORDER BY expression1 ASC|DESC, expression2 ASC|DESC ...
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// LIMIT expression
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//
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//
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theGrammar.addReservedWord("INSERT");
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theGrammar.addReservedWord("INTO");
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theGrammar.addReservedWord("SELECT");
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theGrammar.addReservedWord("FROM");
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theGrammar.addReservedWord("WHERE");
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theGrammar.addReservedWord("ORDER");
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theGrammar.addReservedWord("BY");
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theGrammar.addReservedWord("LIMIT");
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|
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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CodeBuilder codeBuilder = manager.createCodeBuilder(); |
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stmt = theGrammar.createStatement("INSERT_INTO_SELECT");
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stmt.addRule(stmt.require_any_token("INSERT"));
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stmt.addRule(stmt.require_any_token("INTO"));
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stmt.addRule(stmt.require_identifier().capture_as("TARGETTABLE"));
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stmt.addRule(stmt.require_any_token("SELECT"));
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stmt.addRule(stmt.optional_any_token("*")
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.addRuleOnTrue(stmt.set_expression("COLUMNS", codeBuilder.tuple()))
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.addRuleOnFalse(stmt.require_identifiers(",").capture_as("COLUMNS")) |
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); |
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stmt.addRule(stmt.require_any_token("FROM"));
|
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stmt.addRule(stmt.require_identifier().capture_as("TABLE"));
|
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stmt.addRule(stmt.optional_any_token("WHERE")
|
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.addRuleOnTrue(stmt.require_expression().capture_as("WHERE"))
|
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); |
409 |
|
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stmt.addRule(stmt.optional_any_token("ORDER")
|
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.addRuleOnTrue(stmt.require_any_token("BY"))
|
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.addRuleOnTrue(stmt.repeat() |
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.addRule(stmt.require_expression().capture_as("ORDER#"))
|
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.addRule(stmt.switch_token() |
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.addCase("ASC", stmt.set_expression("ORDER_MODE#", true)) |
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.addCase("DESC", stmt.set_expression("ORDER_MODE#", false)) |
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.addDefault(stmt.set_expression("ORDER_MODE#", true)) |
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) |
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.addRule(stmt.optional_any_token(",")
|
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.addRuleOnFalse(stmt.break_loop()) |
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) |
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) |
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); |
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stmt.addRule(stmt.optional_any_token("LIMIT")
|
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.addRuleOnTrue(stmt.require_expression().capture_as("LIMIT"))
|
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); |
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stmt.addRule(stmt.optional_any_token(";"));
|
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stmt.code( |
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DataManager.FUNCTION_INSERT_INTO_TABLE, |
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new InsertIntoArgsBuilder()
|
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); |
432 |
|
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return stmt;
|
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} |
435 |
|
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private Statement createSelectCountStatement(Grammar theGrammar) { |
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Statement stmt;
|
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//
|
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// SELECT COUNT(*) FROM table_name WHERE expression
|
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//
|
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theGrammar.addReservedWord("SELECT");
|
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theGrammar.addReservedWord("FROM");
|
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theGrammar.addReservedWord("WHERE");
|
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|
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stmt = theGrammar.createStatement("SELECT_COUNT");
|
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stmt.addRule(stmt.require_any_token("SELECT"));
|
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stmt.addRule(stmt.require_any_token("COUNT"));
|
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stmt.addRule(stmt.require_any_token("("));
|
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stmt.addRule(stmt.require_any_token("*"));
|
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stmt.addRule(stmt.require_any_token(")"));
|
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stmt.addRule(stmt.require_any_token("FROM"));
|
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stmt.addRule(stmt.require_expression().capture_as("TABLE"));
|
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stmt.addRule(stmt.optional_any_token("WHERE")
|
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.addRuleOnTrue(stmt.require_expression().capture_as("WHERE"))
|
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); |
456 |
stmt.addRule(stmt.require_any_token(";"));
|
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stmt.code( |
458 |
FUNCTION_SELECT_COUNT, |
459 |
new SelectCountArgsBuilder()
|
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); |
461 |
return stmt;
|
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} |
463 |
|
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private Statement createCreateTableStatement(Grammar theGrammar) { |
465 |
Statement stmt;
|
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//
|
467 |
// CREATE TABLE
|
468 |
// ...json_definition...
|
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// IN
|
470 |
// ...target_table_parameters_as_json
|
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//
|
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theGrammar.addReservedWord("CREATE");
|
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|
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stmt = theGrammar.createStatement("CREATE_TABLE");
|
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stmt.addRule(stmt.require_any_token("CREATE"));
|
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stmt.addRule(stmt.require_any_token("TABLE"));
|
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stmt.addRule(stmt.require_expression().capture_as("STRUCTURE"));
|
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stmt.addRule(stmt.require_any_token("IN"));
|
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stmt.addRule(stmt.require_expression().capture_as("LOCATION"));
|
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stmt.code( |
481 |
FUNCTION_CREATE_TABLE, |
482 |
stmt.args_names("STRUCTURE", "LOCATION") |
483 |
); |
484 |
return stmt;
|
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} |
486 |
|
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private Statement createCreateTableStructureStatement(Grammar theGrammar) { |
488 |
Statement stmt;
|
489 |
//
|
490 |
// CREATE TABLE STRUCTURE
|
491 |
// ...json_definition...
|
492 |
//
|
493 |
|
494 |
theGrammar.addReservedWord("CREATE");
|
495 |
|
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stmt = theGrammar.createStatement("CREATE_TABLE_STRUCTURE");
|
497 |
stmt.addRule(stmt.require_any_token("CREATE"));
|
498 |
stmt.addRule(stmt.require_any_token("TABLE"));
|
499 |
stmt.addRule(stmt.require_any_token("STRUCTURE"));
|
500 |
stmt.addRule(stmt.require_expression().capture_as("STRUCTURE"));
|
501 |
stmt.code( |
502 |
FUNCTION_CREATE_TABLE_STRUCTURE, |
503 |
stmt.args_names("STRUCTURE")
|
504 |
); |
505 |
|
506 |
return stmt;
|
507 |
} |
508 |
|
509 |
private Statement createInsertIntoTableStatement(Grammar theGrammar) { |
510 |
// TODO: terminar de implementar
|
511 |
Statement stmt;
|
512 |
//
|
513 |
// INSERT INTO table_name
|
514 |
// ( column_name1, column_name2,... )
|
515 |
// VALUES
|
516 |
// ( expression1, expression2, ...) | expression_list
|
517 |
//
|
518 |
theGrammar.addReservedWord("INSERT");
|
519 |
theGrammar.addReservedWord("INTO");
|
520 |
// theGrammar.addReservedWord("VALUES");
|
521 |
|
522 |
stmt = theGrammar.createStatement("INSERT_INTO");
|
523 |
stmt.addRule(stmt.require_any_token("INSERT"));
|
524 |
stmt.addRule(stmt.require_any_token("INTO"));
|
525 |
stmt.addRule(stmt.require_identifier().capture_as("TARGETTABLE"));
|
526 |
stmt.addRule(stmt.require_any_token("("));
|
527 |
stmt.addRule(stmt.require_identifiers(",").capture_as("COLUMNS")); |
528 |
stmt.addRule(stmt.require_any_token(")"));
|
529 |
stmt.addRule(stmt.require_any_token("VALUES"));
|
530 |
stmt.addRule(stmt.optional_any_token("(")
|
531 |
.addRuleOnTrue(stmt.require_expressions(",").capture_as("VALUES")) |
532 |
.addRuleOnTrue(stmt.require_any_token(")"))
|
533 |
.addRuleOnFalse(stmt.require_expression().capture_as("VALUES"))
|
534 |
); |
535 |
stmt.addRule(stmt.optional_any_token(";"));
|
536 |
// stmt.code(
|
537 |
// DataManager.FUNCTION_INSERT_INTO,
|
538 |
// stmt.args_names("TARGETTABLE","COLUMNS", "VALUES")
|
539 |
// );
|
540 |
|
541 |
return stmt;
|
542 |
} |
543 |
|
544 |
private Statement createUpdateStatement(Grammar theGrammar) { |
545 |
Statement stmt;
|
546 |
//
|
547 |
// UPDATE table_name
|
548 |
// SET column1 = expression1, column2 = expression2, ...
|
549 |
// WHERE condition;
|
550 |
//
|
551 |
theGrammar.addReservedWord("UPDATE");
|
552 |
theGrammar.addReservedWord("WHERE");
|
553 |
|
554 |
stmt = theGrammar.createStatement("UPDATE");
|
555 |
stmt.addRule(stmt.require_any_token("UPDATE"));
|
556 |
stmt.addRule(stmt.require_identifier().capture_as("TABLE"));
|
557 |
stmt.addRule(stmt.require_any_token("SET"));
|
558 |
stmt.addRule(stmt.repeat_until_any_tokens("WHERE")
|
559 |
.addRule(stmt.require_identifier().capture_as("#COLUMNS"))
|
560 |
.addRule(stmt.require_any_token("="))
|
561 |
.addRule(stmt.require_expression().capture_as("#VALUES"))
|
562 |
); |
563 |
stmt.addRule(stmt.require_expression().capture_as("CONDITION"));
|
564 |
stmt.addRule(stmt.optional_any_token(";"));
|
565 |
stmt.code( |
566 |
DataManager.FUNCTION_UPDATE, |
567 |
stmt.args_names("TABLE","CONDITION","#COLUMNS", "#VALUES") |
568 |
); |
569 |
|
570 |
return stmt;
|
571 |
} |
572 |
|
573 |
private Statement createDeleteFromTableStatement(Grammar theGrammar) { |
574 |
// TODO: terminar de implementar
|
575 |
Statement stmt;
|
576 |
//
|
577 |
// DELETE FROM table_name WHERE condition;
|
578 |
//
|
579 |
theGrammar.addReservedWord("DELETE");
|
580 |
theGrammar.addReservedWord("WHERE");
|
581 |
|
582 |
stmt = theGrammar.createStatement("DELETE");
|
583 |
stmt.addRule(stmt.require_any_token("DELETE"));
|
584 |
stmt.addRule(stmt.require_identifier().capture_as("TABLE"));
|
585 |
stmt.addRule(stmt.require_any_token("WHERE"));
|
586 |
stmt.addRule(stmt.require_expression().capture_as("CONDITION"));
|
587 |
stmt.addRule(stmt.optional_any_token(";"));
|
588 |
// stmt.code(
|
589 |
// DataManager.FUNCTION_DELETE,
|
590 |
// stmt.args_names("TABLE","CONDITION")
|
591 |
// );
|
592 |
|
593 |
return stmt;
|
594 |
} |
595 |
|
596 |
public static final void selfRegister() { |
597 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
598 |
manager.registerGrammar(new DataAccessGrammarFactory());
|
599 |
} |
600 |
} |