Revision 1956 trunk/libraries/libGDBMS/src/com/hardcode/gdbms/engine/instruction/UnionAdapter.java
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package com.hardcode.gdbms.engine.instruction; |
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import java.io.IOException;
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import com.hardcode.driverManager.DriverLoadException;
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import com.hardcode.driverManager.DriverLoadException; |
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import com.hardcode.gdbms.engine.data.DataSource; |
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import com.hardcode.gdbms.engine.data.DataSourceFactory; |
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import com.hardcode.gdbms.engine.data.DriverException; |
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import com.hardcode.gdbms.engine.data.NoSuchTableException; |
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import com.hardcode.gdbms.engine.data.driver.DriverException; |
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import com.hardcode.gdbms.parser.ParseException; |
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import java.io.IOException; |
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/** |
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* Adaptador de la instrucci?n UNION |
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* |
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* @author Fernando Gonz?lez Cort?s |
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*/ |
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public class UnionAdapter extends Adapter {
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/** |
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* DOCUMENT ME! |
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* |
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* @param table DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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* |
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* @throws SemanticException DOCUMENT ME! |
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* @throws RuntimeException DOCUMENT ME! |
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* @throws IllegalStateException DOCUMENT ME! |
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*/ |
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private DataSource getTable(int table) throws SemanticException {
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Adapter hijo = getChilds()[table]; |
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private DataSource getTable(int table) throws SemanticException{
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Adapter hijo = getChilds()[table];
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if (hijo instanceof TableRefAdapter) {
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String name = Utilities.getText(hijo.getEntity());
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if (hijo instanceof TableRefAdapter) {
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String name = Utilities.getText(hijo.getEntity()); |
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return getTableByName(name); |
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} else if (hijo instanceof SelectAdapter) {
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try {
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return getTableBySelect((SelectAdapter)hijo); |
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} catch (DriverException e) {
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throw new RuntimeException(e); |
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} catch (IOException e) {
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throw new RuntimeException(e); |
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return getTableByName(name); |
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} else if (hijo instanceof SelectAdapter) {
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try {
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return getTableBySelect((SelectAdapter) hijo); |
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} catch (DriverException e) {
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throw new RuntimeException(e); |
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} catch (IOException e) {
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throw new RuntimeException(e); |
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} catch (DriverLoadException e) {
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throw new RuntimeException(e); |
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throw new RuntimeException(e); |
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} catch (ParseException e) {
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throw new RuntimeException(e); |
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} |
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} else {
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throw new IllegalStateException("Cannot crate the DataSource");
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} |
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} else {
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throw new IllegalStateException("Cannot create the DataSource");
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} |
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} |
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/** |
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* @see com.hardcode.gdbms.engine.instruction.UnionInstruction#getFirstTable()
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*/
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public DataSource getFirstTable() throws SemanticException {
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return getTable(0);
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}
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* @see com.hardcode.gdbms.engine.instruction.UnionInstruction#getFirstTable()
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*/
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public DataSource getFirstTable() throws SemanticException {
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return getTable(0);
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}
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/** |
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* Obtiene el data source a partir de una select |
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* |
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* @param select |
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* |
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* @return |
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* @throws IOException |
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* @throws SemanticException |
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* @throws DriverException |
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* @throws DriverLoadException |
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* @throws DriverException |
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* @throws SemanticException |
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* @throws IOException |
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* @throws IllegalAccessException |
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* @throws InstantiationException |
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*/ |
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private DataSource getTableBySelect(SelectAdapter select) throws DriverLoadException, DriverException, SemanticException, IOException |
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{
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return DataSourceFactory.createRandomDataSource(select); |
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} |
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/** |
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* Obtiene el data source a partir de una select |
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* |
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* @param select |
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* |
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* @return |
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* |
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* @throws DriverLoadException |
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* @throws DriverException |
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* @throws SemanticException |
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* @throws IOException |
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* @throws ParseException |
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*/ |
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private DataSource getTableBySelect(SelectAdapter select) |
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throws DriverLoadException, DriverException, SemanticException, |
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IOException, ParseException {
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return getInstructionContext().getDSFActory().createRandomDataSource(select, DataSourceFactory.MANUAL_MODE); |
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} |
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/**
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* Obtiene un data source por el nombre
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*
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* @param name
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*
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* @return
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*
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* @throws TableNotFoundException Si nop hay ninguna tabla con el nombre
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* 'name'
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* @throws RuntimeException
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*/
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private DataSource getTableByName(String name)
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throws TableNotFoundException {
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String[] tabla = name.split(" ");
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/**
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* Obtiene un data source por el nombre
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*
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* @param name
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*
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* @return
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*
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* @throws TableNotFoundException Si nop hay ninguna tabla con el nombre
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* 'name'
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* @throws RuntimeException
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*/
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private DataSource getTableByName(String name)
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throws TableNotFoundException {
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String[] tabla = name.split(" ");
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try {
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if (tabla.length == 1) {
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return DataSourceFactory.createRandomDataSource(name); |
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} else {
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return DataSourceFactory.createRandomDataSource(tabla[0], |
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tabla[1]); |
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} |
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} catch (DriverLoadException e) {
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try {
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if (tabla.length == 1) {
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return getInstructionContext().getDSFActory() |
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.createRandomDataSource(name, DataSourceFactory.MANUAL_MODE); |
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} else {
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return getInstructionContext().getDSFActory() |
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.createRandomDataSource(tabla[0], tabla[1], |
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DataSourceFactory.MANUAL_MODE); |
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} |
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} catch (DriverLoadException e) {
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throw new RuntimeException(e); |
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} catch (NoSuchTableException e) {
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throw new TableNotFoundException(e); |
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} catch (DriverException e) {
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throw new RuntimeException(e); |
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} catch (NoSuchTableException e) {
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throw new TableNotFoundException(e); |
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} |
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}
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}
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/**
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* @see com.hardcode.gdbms.engine.instruction.UnionInstruction#getSecondTable()
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*/
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public DataSource getSecondTable() throws SemanticException {
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return getTable(1);
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}
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/**
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* @see com.hardcode.gdbms.engine.instruction.UnionInstruction#getSecondTable()
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*/
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public DataSource getSecondTable() throws SemanticException {
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return getTable(1);
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}
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} |
Also available in: Unified diff