Revision 44750 trunk/org.gvsig.desktop/org.gvsig.desktop.compat.cdc/org.gvsig.fmap.dal/org.gvsig.fmap.dal.db/org.gvsig.fmap.dal.db.jdbc/src/main/java/org/gvsig/fmap/dal/store/jdbc2/spi/expressionbuilderformatter/Select.java
| Select.java | ||
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_TUPLE; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Function; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
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import org.gvsig.expressionevaluator.Formatter; |
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* |
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* @author jjdelcerro |
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*/ |
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@SuppressWarnings("UseSpecificCatch")
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public class Select implements Formatter<Value> {
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private final SQLBuilder sqlbuilder; |
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private final Formatter<Value> formatter; |
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public Select(SQLBuilder sqlbuilder, Formatter<Value> formatter) {
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this.sqlbuilder = sqlbuilder; |
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this.formatter = formatter; |
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private final SQLBuilder sqlbuilder; |
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private final Formatter<Value> formatter; |
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public Select(SQLBuilder sqlbuilder, Formatter<Value> formatter) {
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this.sqlbuilder = sqlbuilder; |
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this.formatter = formatter; |
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} |
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@Override |
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public boolean canApply(ExpressionBuilder.Value value) {
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if (value instanceof ExpressionBuilder.Function) {
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return StringUtils.equalsIgnoreCase(FUNCTION_SELECT, ((Function) value).name()); |
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} |
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@Override |
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public boolean canApply(ExpressionBuilder.Value value) {
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if (value instanceof ExpressionBuilder.Function) {
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return StringUtils.equalsIgnoreCase(FUNCTION_SELECT, ((Function) value).name()); |
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} |
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return false; |
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} |
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return false; |
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} |
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@Override |
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public String format(Value function0) {
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Function function = (Function) function0; |
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String tableName = function.getParameter("TABLE").toString();
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Value where = function.getParameter("WHERE");
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Value order = function.getParameter("ORDER");
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Value limit = function.getParameter("LIMIT");
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Value order_mode = function.getParameter("ORDER_MODE");
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StringBuilder builder = new StringBuilder(); |
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builder.append("(SELECT * FROM ");
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builder.append(tableName); |
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if( where!=null ) {
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builder.append(" WHERE ");
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builder.append(where.toString(formatter)); |
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} |
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for( int n=0 ; function.containsParameter("ORDER", n); n++) {
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if( n>0 ) {
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private static final int COLUMNS = 0; |
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private static final int TABLE = 1; |
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private static final int WHERE = 2; |
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private static final int ORDER = 3; |
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private static final int ORDER_MODE = 4; |
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private static final int LIMIT = 5; |
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@Override |
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public String format(Value function0) {
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Function function = (Function) function0; |
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String tableName = (String) function.parameters().get(TABLE).toString(); |
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Value where = function.parameters().get(WHERE); |
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Value order = function.parameters().get(ORDER); |
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Value limit = function.parameters().get(LIMIT); |
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Value order_mode = function.parameters().get(ORDER_MODE); |
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StringBuilder builder = new StringBuilder(); |
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builder.append("(SELECT ");
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try {
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Function columns = (Function) function.parameters().get(COLUMNS); |
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if (!StringUtils.equalsIgnoreCase(((ExpressionBuilder.Function) columns).name(), FUNCTION_TUPLE)) {
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throw new IllegalArgumentException(); |
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} |
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if( columns.parameters().isEmpty() ) {
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builder.append("* ");
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} else {
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boolean needcomma = false; |
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for (Value parameter : columns.parameters()) {
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if(needcomma) {
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builder.append(", ");
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} |
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builder.append(function.getParameter("ORDER",n).toString(formatter));
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if( StringUtils.equalsIgnoreCase(function.getParameter("ORDER_MODE",n).toString(),"true") ) {
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builder.append(" ASC ");
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} else {
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builder.append(" DESC ");
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needcomma = true;
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} |
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builder.append(parameter.toString(formatter)); |
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} |
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if( limit!=null ) {
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builder.append(" LIMIT ");
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builder.append(limit.toString(formatter)); |
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} |
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builder.append(")");
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return builder.toString(); |
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} |
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} catch (Exception ex) {
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throw new IllegalArgumentException("Invalid columns, need a tuple function as columns.");
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} |
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builder.append(" FROM ");
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builder.append(tableName); |
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if (where != null) {
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builder.append(" WHERE ");
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builder.append(where.toString(formatter)); |
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} |
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// for( int n=0 ; function.containsParameter("ORDER", n); n++) {
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// if( n>0 ) {
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// builder.append(", ");
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// } |
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// builder.append(function.getParameter("ORDER",n).toString(formatter));
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// if( StringUtils.equalsIgnoreCase(function.getParameter("ORDER_MODE",n).toString(),"true") ) {
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// builder.append(" ASC ");
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// } else {
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// builder.append(" DESC ");
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// } |
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// } |
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if (limit != null) {
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builder.append(" LIMIT ");
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builder.append(limit.toString(formatter)); |
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} |
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builder.append(")");
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return builder.toString(); |
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} |
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} |
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