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svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.h2 / src / main / java / org / gvsig / fmap / dal / store / h2 / H2SpatialSQLBuilder.java @ 44669

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package org.gvsig.fmap.dal.store.h2;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.text.MessageFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import java.util.Objects;
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import org.apache.commons.lang3.tuple.Pair;
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import org.gvsig.expressionevaluator.ExpressionBuilder.Parameter;
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import org.gvsig.expressionevaluator.Formatter;
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import org.gvsig.fmap.dal.DataTypes;
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor;
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import org.gvsig.fmap.dal.feature.FeatureType;
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider;
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import org.gvsig.fmap.dal.store.h2.expressionbuilderformatter.H2SpatialFormatter;
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import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase;
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import org.gvsig.fmap.geom.Geometry;
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import org.gvsig.fmap.geom.exception.CreateGeometryException;
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import org.gvsig.tools.dispose.Disposable;
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public class H2SpatialSQLBuilder extends JDBCSQLBuilderBase {
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    protected Formatter formatter = null;
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    public H2SpatialSQLBuilder(H2SpatialHelper helper) {
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        super(helper);
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        //
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        // H2/H2GIS SQL functions reference list
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        //
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        // http://www.h2database.com/html/functions.html
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        // http://www.h2gis.org/docs/1.3/functions/
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        //
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        // http://www.h2database.com/html/grammar.html
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        //
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        // http://www.h2database.com/html/datatypes.html
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        //
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        //
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        this.defaultSchema = "PUBLIC";
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        this.supportSchemas = true;
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        this.allowAutomaticValues = true;
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        this.geometrySupportType = this.helper.getGeometrySupportType();
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        this.hasSpatialFunctions = this.helper.hasSpatialFunctions();
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        this.STMT_DELETE_GEOMETRY_COLUMN_FROM_TABLE_schema_table = null;
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        this.STMT_DELETE_GEOMETRY_COLUMN_FROM_TABLE_table = null;
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        this.STMT_UPDATE_TABLE_STATISTICS_table = "ANALYZE SAMPLE_SIZE 0";
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//        config.set(SQLConfig.ST_AsBinary, "NVL2({0}, ST_AsBinary({0}), null)");
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        this.type_boolean = "BOOLEAN";
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        this.type_byte = "TINYINT";
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        this.type_bytearray = "BLOB";
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        this.type_geometry = "GEOMETRY";
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        this.type_char = "CHAR";
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        this.type_date = "DATE";
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        this.type_double = "DOUBLE"; 
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        this.type_numeric_p = "DECIMAL({0,Number,#######})";
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        this.type_numeric_ps = "DECIMAL({0,Number,#######},{1,Number,#######})";
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        this.type_bigdecimal = "DOUBLE";
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        this.type_float = "REAL";
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        this.type_int = "INTEGER";
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        this.type_long = "BIGINT";
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        this.type_string = "VARCHAR";
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        this.type_string_p = "VARCHAR({0,Number,#######})";
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        this.type_time = "TIME";
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        this.type_timestamp = "TIMESTAMP";
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        this.type_version = "VARCHAR";
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        this.type_URI = "VARCHAR";
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        this.type_URL = "VARCHAR";
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        this.type_FILE = "VARCHAR";
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        this.type_FOLDER = "VARCHAR";        
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    }
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    @Override
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    protected Formatter formatter() {
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        if( this.formatter==null ) {
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            this.formatter = new H2SpatialFormatter(this);
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        }
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        return this.formatter;
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    }
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    public class H2SpatialTableNameBuilderBase extends TableNameBuilderBase {
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        @Override
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        public boolean has_database() {
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            return false;
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        }
94
        
95
    }
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    public class H2SpatialCreateIndexBuilder extends CreateIndexBuilderBase {
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        @Override
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        public List<String> toStrings(Formatter formatter) {
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            StringBuilder builder = new StringBuilder();
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            builder.append("CREATE ");
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            if( this.isUnique ) {
104
                builder.append("UNIQUE ");
105
            }
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            if( this.isSpatial ) {
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                builder.append("SPATIAL ");
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            }
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            builder.append("INDEX ");
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            if( this.ifNotExist ) {
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                builder.append("IF NOT EXISTS ");
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            }
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            builder.append(as_identifier(this.indexName));
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            builder.append(" ON ");
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            builder.append(this.table.toString(formatter));
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            builder.append(" ( ");
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            boolean is_first_column = true;
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            for( String column : this.columns) {
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                if( is_first_column ) {
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                    is_first_column = false;
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                } else {
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                    builder.append(", ");
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                }
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                builder.append(as_identifier(column));
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            }
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            builder.append(" )");
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            List<String> sqls = new ArrayList<>();
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            sqls.add(builder.toString());
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            return sqls;
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        }
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133
    }
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135
    protected class H2SpatialAlterTableBuilderBase extends AlterTableBuilderBase {
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        @Override
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        public List<String> toStrings(Formatter formatter) {
138
            List<String> sqls = new ArrayList<>();
139
            if( this.isEmpty() ) {
140
                return sqls;
141
            }
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            for (String column : drops) {
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                StringBuilder builder = new StringBuilder();
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                builder.append("ALTER TABLE ");
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                builder.append(this.table.toString(formatter));
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                builder.append(" DROP COLUMN IF EXISTS ");
147
                builder.append(as_identifier(column)); 
148
                sqls.add(builder.toString());
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            }
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            for (ColumnDescriptor column : adds) {
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                StringBuilder builder = new StringBuilder();
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                builder.append("ALTER TABLE ");
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                builder.append(this.table.toString(formatter));
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                builder.append(" ADD COLUMN ");
155
                builder.append(as_identifier(column.getName())); 
156
                builder.append(" ");
157
                if( column.getType() == DataTypes.INT && column.isAutomatic() ) {
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                    builder.append(" SERIAL");
159
                } else {
160
                    builder.append(
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                        sqltype(
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                            column.getType(), 
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                            column.getSize(),
164
                            column.getPrecision(), 
165
                            column.getScale(), 
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                            column.getGeometryType(), 
167
                            column.getGeometrySubtype()
168
                        )
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                    );
170
                }
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                if (column.getDefaultValue() == null) {
172
                    if (column.allowNulls()) {
173
                        builder.append(" DEFAULT NULL");
174
                    }
175
                } else {
176
                    builder.append(" DEFAULT '");
177
                    builder.append(Objects.toString(column.getDefaultValue(),""));
178
                    builder.append("'");
179
                }
180
                if (column.allowNulls()) {
181
                    builder.append(" NULL");
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                } else {
183
                    builder.append(" NOT NULL");
184
                }
185
                if (column.isPrimaryKey()) {
186
                    builder.append(" PRIMARY KEY");
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                }
188
                sqls.add(builder.toString());
189
                
190
                if( column.isGeometry() ) {
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                    String sql;
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                    String constraint_name = "constraint_" + this.table().getName() + "_" + column.getName()+"_dim";
193
                    sql = MessageFormat.format(
194
                        "ALTER TABLE \"{0}\".\"{1}\" ADD CONSTRAINT IF NOT EXISTS \"{2}\" CHECK ST_CoordDim(\"{3}\") = {4}",
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                        this.table().getSchema(),
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                        this.table().getName(),
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                        constraint_name,
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                        column.getName(),
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                        sqlgeometrynumdimension(column.getGeometryType(),column.getGeometrySubtype())
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                    );
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                    sqls.add(sql);
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                }
203
            }
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            for (ColumnDescriptor column : alters) {
205
                StringBuilder builder = new StringBuilder();
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                builder.append("ALTER TABLE ");
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                builder.append(this.table.toString(formatter));
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                builder.append(" ALTER COLUMN ");
209
                builder.append(as_identifier(column.getName())); 
210
                builder.append(" ");
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                builder.append(
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                    sqltype(
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                        column.getType(), 
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                        column.getSize(),
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                        column.getPrecision(), 
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                        column.getScale(), 
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                        column.getGeometryType(), 
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                        column.getGeometrySubtype()
219
                    )
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                );
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                if (column.getDefaultValue() == null) {
222
                    if (column.allowNulls()) {
223
                        builder.append(" DEFAULT NULL");
224
                    }
225
                } else {
226
                    builder.append(" DEFAULT '");
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                    builder.append(column.getDefaultValue().toString());
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                    builder.append("'");
229
                }
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                if( column.isAutomatic() ) {
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                    builder.append(" AUTO_INCREMENT");
232
                }
233
                sqls.add(builder.toString());
234
                if( column.isGeometry() ) {
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                    String sql;
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                    String constraint_name = "constraint_" + this.table().getName() + "_" + column.getName()+"_dim";
237
                    sql = MessageFormat.format(
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                        "ALTER TABLE \"{0}\".\"{1}\" ADD CONSTRAINT IF NOT EXISTS \"{2}\" CHECK ST_CoordDim(\"{3}\") = {4}",
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                        this.table().getSchema(),
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                        this.table().getName(),
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                        constraint_name,
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                        column.getName(),
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                        sqlgeometrynumdimension(column.getGeometryType(),column.getGeometrySubtype())
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                    );
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                    sqls.add(sql);
246
                }
247
            }
248
            for (Pair<String,String> pair : renames) {
249
                StringBuilder builder = new StringBuilder();
250
                builder.append("ALTER TABLE ");
251
                builder.append(this.table.toString(formatter));
252
                builder.append(" RENAME COLUMN ");
253
                builder.append(as_identifier(pair.getLeft())); 
254
                builder.append(" TO ");
255
                builder.append(as_identifier(pair.getRight())); 
256
                sqls.add(builder.toString());
257
            }
258
            return sqls;
259
        }
260

    
261
    }
262
    
263
    protected class H2SpatialCreateTableBuilder extends CreateTableBuilderBase {
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265
        @Override
266
        public List<String> toStrings(Formatter formatter) {
267

    
268
            List<String> sqls = new ArrayList<>();
269
            StringBuilder builder = new StringBuilder();
270

    
271
            builder.append("CREATE TABLE ");
272
            builder.append(this.table.toString(formatter));
273
            builder.append(" (");
274
            boolean first = true;
275
            for (ColumnDescriptor column : columns) {
276

    
277
                if (first) {
278
                    first = false;
279
                } else {
280
                    builder.append(", ");
281
                }
282
                builder.append(as_identifier(column.getName()));
283
                builder.append(" ");
284
                builder.append(
285
                    sqltype(
286
                        column.getType(), 
287
                        column.getSize(),
288
                        column.getPrecision(), 
289
                        column.getScale(), 
290
                        column.getGeometryType(), 
291
                        column.getGeometrySubtype()
292
                    )
293
                );
294
                if( !column.isGeometry() ) {
295
                    if (column.isPrimaryKey()) {
296
                        builder.append(" PRIMARY KEY");
297
                        if( column.isAutomatic() ) {
298
                            builder.append(" AUTO_INCREMENT");
299
                        }
300
                    } else {
301
                        if( column.isAutomatic() ) {
302
                            builder.append(" AUTO_INCREMENT");
303
                        }
304
                        if (column.getDefaultValue() == null) {
305
                            if (column.allowNulls()) {
306
                                builder.append(" DEFAULT NULL");
307
                            }
308
                        } else {
309
                            if( column.getType() == DataTypes.DATE ) {
310
                                builder.append(" DEFAULT ( TIMESTAMP '");
311
                                Date d = (Date) column.getDefaultValue();
312
                                builder.append(MessageFormat.format( "{0,date,yyyy-MM-dd HH:mm:ss.S}",d));
313
                                builder.append("' )");
314
                            } else {
315
                                builder.append(" DEFAULT '");
316
                                builder.append(Objects.toString(column.getDefaultValue(),""));
317
                                builder.append("'");
318
                            }
319
                        }
320
                    }
321
                }
322
                if (!column.allowNulls()) {
323
                    builder.append(" NOT NULL");
324
                }
325
            }
326
            builder.append(" )");
327
            sqls.add(builder.toString());
328
            for (ColumnDescriptor column : columns) {
329
                if( column.isGeometry() ) {
330
                    String sql;
331
                    String constraint_name = "constraint_" + this.table().getName() + "_" + column.getName()+"_dim";
332
                    sql = MessageFormat.format(
333
                        "ALTER TABLE {0} ADD CONSTRAINT IF NOT EXISTS \"{1}\" CHECK NVL2(\"{2}\", ST_CoordDim(\"{2}\") = {3}, TRUE)",
334
                        this.table().toString(),
335
                        constraint_name,
336
                        column.getName(),
337
                        sqlgeometrynumdimension(column.getGeometryType(),column.getGeometrySubtype())
338
                    );
339
                    if( column.getGeometrySRSId()!=null ) {
340
                        String sql2;
341
                        String constraint_name2 = "constraint_" + this.table().getName() + "_" + column.getName()+"_srid";
342
                        sql2 = MessageFormat.format(
343
                            "ALTER TABLE {0} ADD CONSTRAINT IF NOT EXISTS \"{1}\" CHECK NVL2(\"{2}\", ST_SRID(\"{2}\") = {3,number,#####}, TRUE)",
344
                            this.table().toString(),
345
                            constraint_name2, 
346
                            column.getName(), 
347
                            column.getGeometrySRSId() 
348
                        );
349
                        sqls.add(sql2);
350
                    }
351
                    sqls.add(sql);
352
                }
353
            }            
354
            
355
            return sqls;
356
        }
357
    }
358

    
359
    public class H2SpatialSelectBuilderBase extends SelectBuilderBase {
360
        
361
        @Override
362
        protected boolean isValid(StringBuilder message) {
363
            if( message == null ) {
364
                message = new StringBuilder();
365
            }
366
            if( this.has_offset() && !this.has_order_by() ) {
367
                // Algunos gestores de BBDD requieren que se especifique un
368
                // orden para poder usar OFFSET. Como eso parece buena idea para
369
                // asegurar que siempre tengamos los mismo resultados, lo exijimos
370
                // siempre.
371
                message.append("Can't use OFFSET without an ORDER BY.");
372
                return false;
373
            }
374
            return true;
375
        }        
376
        
377
        @Override
378
        public String toString(Formatter formatter) {
379
            StringBuilder builder = new StringBuilder();
380
            if( !isValid(builder) ) {
381
                throw new IllegalStateException(builder.toString());
382
            }
383
            builder.append("SELECT ");
384
            if( this.distinct ) {
385
                builder.append("DISTINCT ");
386
            }
387
            boolean first = true;
388
            for (SelectColumnBuilder column : columns) {
389
                if (first) {
390
                    first = false;
391
                } else {
392
                    builder.append(", ");
393
                }
394
                builder.append(column.toString(formatter));
395
            }
396

    
397
            if ( this.has_from() ) {
398
                builder.append(" FROM ");
399
                builder.append(this.from.toString(formatter));
400
            }
401
            if( this.has_group_by() ) {
402
                builder.append(" GROUP BY ");
403
                builder.append(this.groupColumn.get(0).toString(formatter));
404
                for (int i = 1; i < groupColumn.size(); i++) {
405
                    builder.append(", ");
406
                    builder.append(this.groupColumn.get(i).toString(formatter));
407
                }
408
            }
409
            if ( this.has_where() ) {
410
                builder.append(" WHERE ");
411
                builder.append(this.where.toString(formatter));
412
            }
413
            
414
            if( this.has_order_by() ) {
415
                builder.append(" ORDER BY ");
416
                first = true;
417
                for (OrderByBuilder item : this.order_by) {
418
                    if (first) {
419
                        first = false;
420
                    } else {
421
                        builder.append(", ");
422
                    }
423
                    builder.append(item.toString(formatter));                    
424
                }   
425
            }
426
            
427
            if ( this.has_limit() && this.has_offset() ) {
428
                builder.append(" LIMIT ");
429
                builder.append(this.limit);
430
                builder.append(" OFFSET ");
431
                builder.append(this.offset);
432
                
433
            } else if ( this.has_limit()) {
434
                builder.append(" LIMIT ");
435
                builder.append(this.limit);
436

    
437
            } else if ( this.has_offset() ) {
438
                builder.append(" LIMIT -1 OFFSET ");
439
                builder.append(this.offset);    
440
            }
441
            return builder.toString();
442

    
443
        }
444
    }
445

    
446
    @Override
447
    public Object sqlgeometrydimension(int type, int subtype) {
448
        //'XY' or 2: 2D points, identified by X and Y coordinates
449
        //'XYM': 2D points, identified by X and Y coordinates. Each point stores an M-value (measure) as well
450
        //'XYZ' or 3: 3D points, identified by X, Y and Z coordinates
451
        //'XYZM' or 4: 3D points, identified by X, Y and Z coordinates. Each point stores an M-value (measure) as well
452
        switch(subtype) {
453
            case Geometry.SUBTYPES.GEOM2D:
454
            default:
455
                return "XY";
456
            case Geometry.SUBTYPES.GEOM2DM:
457
                return "XYM";
458
            case Geometry.SUBTYPES.GEOM3D:
459
                return "XYZ";
460
            case Geometry.SUBTYPES.GEOM3DM:
461
                return "XYZM";
462
        }
463
    }
464

    
465
    @Override
466
    public String sqltype(int type, int size, int precision, int scale, int geomtype, int geomSubtype) {
467
        if( type!=DataTypes.GEOMETRY ) {
468
            return super.sqltype(type, size, precision, scale, geomtype, geomSubtype);
469
        }
470
        //
471
        // https://github.com/orbisgis/h2gis/wiki/1.-Spatial-data#geometry-columns-view
472
        //
473
        switch(geomtype) {
474
        case Geometry.TYPES.POINT:
475
            return "POINT";
476
        case Geometry.TYPES.MULTIPOINT:
477
            return "MULTIPOINT";
478
        case Geometry.TYPES.LINE:
479
            return "LINESTRING";
480
        case Geometry.TYPES.MULTILINE:
481
            return "MULTILINESTRING";
482
        case Geometry.TYPES.POLYGON:
483
            return "POLYGON";
484
        case Geometry.TYPES.MULTIPOLYGON:
485
            return "MULTIPOLYGON";
486
        default:
487
            return "GEOMETRY";
488
        }
489
    }
490
    
491
    public Object sqlgeometrynumdimension(int type, int subtype) {
492
        int dimensions=2;
493
        switch(subtype) {
494
        case Geometry.SUBTYPES.GEOM3D:
495
            dimensions = 3;
496
            break;
497
        case Geometry.SUBTYPES.GEOM2D:
498
            dimensions = 2;
499
            break;
500
        case Geometry.SUBTYPES.GEOM2DM:
501
            dimensions = 2; // ??????
502
            break;
503
        case Geometry.SUBTYPES.GEOM3DM:
504
            dimensions = 3; // ??????
505
            break;
506
        }
507
        return dimensions;
508
    }
509
    
510
    @Override
511
    public H2SpatialHelper getHelper() {
512
        return (H2SpatialHelper) this.helper;
513
    }
514
   
515
    @Override
516
    public Disposable setParameters(PreparedStatement st, FeatureProvider feature) {
517
        try {
518
            FeatureType featureType = feature.getType();
519
            List<Object> values = new ArrayList<>();
520
            for (Parameter parameter : this.parameters()) {
521
                if (parameter.is_constant()) {
522
                    values.add(parameter.value());
523
                } else {
524
                    String name = parameter.name();
525
                    FeatureAttributeDescriptor descriptor = featureType.getAttributeDescriptor(name);
526
                    switch( descriptor.getType() ) {
527
                    case DataTypes.DATE:
528
                        Date value = (Date)(feature.get(name));
529
                        if( value == null ) {
530
                            values.add(null);
531
                        } else {
532
                            values.add(new java.sql.Date(value.getTime()));
533
                        }
534
                        break;
535
                    case DataTypes.GEOMETRY:
536
                        Geometry geom = this.forceGeometryType(
537
                            descriptor.getGeomType(),
538
                            (Geometry)(feature.get(name))
539
                        );
540
                        values.add(geom);
541
                        break;
542
                    default:
543
                        values.add(feature.get(name));
544
                        break;
545
                    }
546
                }
547
            }
548
            return this.setStatementParameters(st, values, this.geometry_support_type());
549
        } catch (SQLException | CreateGeometryException ex) {
550
            String f = "unknow";
551
            try {
552
                f = feature.toString();
553
            } catch (Exception ex2) {
554
                // Do nothing
555
            }
556
            throw new RuntimeException("Can't set parameters to prepared statement from the feature (" + f + ")", ex);
557
        }
558
    }
559

    
560
    @Override
561
    protected AlterTableBuilder createAlterTableBuilder() {
562
        return new H2SpatialAlterTableBuilderBase();
563
    }
564
            
565
    @Override
566
    public TableNameBuilder createTableNameBuilder() {
567
        return new H2SpatialTableNameBuilderBase();
568
    }
569
    
570
    @Override
571
    protected CreateTableBuilder createCreateTableBuilder() {
572
        return new H2SpatialCreateTableBuilder();
573
    }
574

    
575
    @Override
576
    protected SelectBuilder createSelectBuilder() {
577
        return new H2SpatialSelectBuilderBase();
578
    }
579

    
580
    @Override
581
    protected CreateIndexBuilder createCreateIndexBuilder() {
582
        return new H2SpatialCreateIndexBuilder();
583
    }
584

    
585
}