Examples of org.hibernate.criterion.Projection

org.hibernate.criterion.Projection
An object-oriented representation of a query result set projection in a {@link Criteria} query.Built-in projection types are provided by the {@link Projections} factory class. This interface might beimplemented by application classes that define custom projections. @author Gavin King @author Steve Ebersole @see Projections @see Criteria

  public String[] getColumnsUsingProjection(
      Criteria subcriteria,
          String propertyName) throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    String[] projectionColumns = null;
    if ( projection != null ) {
      projectionColumns = ( projection instanceof EnhancedProjection ?
          ( ( EnhancedProjection ) projection ).getColumnAliases( propertyName, 0, rootCriteria, this ) :
          projection.getColumnAliases( propertyName, 0 )
      );
    }
    if ( projectionColumns == null ) {
      //it does not refer to an alias of a projection,
      //look for a property

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  @Override
  public Type getTypeUsingProjection(Criteria subcriteria, String propertyName)
      throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    Type[] projectionTypes = projection == null ?
                             null :
                             projection.getTypes( propertyName, subcriteria, this );


    if ( projectionTypes == null ) {
      try {
        //it does not refer to an alias of a projection,
        //look for a property

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  public String[] getColumnsUsingProjection(
      Criteria subcriteria,
          String propertyName) throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    String[] projectionColumns = null;
    if ( projection != null ) {
      projectionColumns = ( projection instanceof EnhancedProjection ?
          ( ( EnhancedProjection ) projection ).getColumnAliases( propertyName, 0, rootCriteria, this ) :
          projection.getColumnAliases( propertyName, 0 )
      );
    }
    if ( projectionColumns == null ) {
      //it does not refer to an alias of a projection,
      //look for a property

View Full Code Here


  public Type getTypeUsingProjection(Criteria subcriteria, String propertyName)
      throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    Type[] projectionTypes = projection == null ?
                             null :
                             projection.getTypes( propertyName, subcriteria, this );


    if ( projectionTypes == null ) {
      try {
        //it does not refer to an alias of a projection,
        //look for a property

View Full Code Here

  public String[] getColumnsUsingProjection(
      Criteria subcriteria,
          String propertyName) throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    String[] projectionColumns = null;
    if ( projection != null ) {
      projectionColumns = ( projection instanceof EnhancedProjection ?
          ( ( EnhancedProjection ) projection ).getColumnAliases( propertyName, 0, rootCriteria, this ) :
          projection.getColumnAliases( propertyName, 0 )
      );
    }
    if ( projectionColumns == null ) {
      //it does not refer to an alias of a projection,
      //look for a property

View Full Code Here


  public Type getTypeUsingProjection(Criteria subcriteria, String propertyName)
      throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    Type[] projectionTypes = projection == null ?
                             null :
                             projection.getTypes( propertyName, subcriteria, this );


    if ( projectionTypes == null ) {
      try {
        //it does not refer to an alias of a projection,
        //look for a property

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  @SuppressWarnings("unchecked")
  protected long countCriteriaResult(final Criteria c) {
    CriteriaImpl impl = (CriteriaImpl) c;


    // 先把Projection、ResultTransformer、OrderBy取出来,清空三者后再执行Count操作
    Projection projection = impl.getProjection();
    ResultTransformer transformer = impl.getResultTransformer();


    List<CriteriaImpl.OrderEntry> orderEntries = null;
    try {
      orderEntries = (List) ReflectionUtils.getFieldValue(impl, "orderEntries");

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  @SuppressWarnings("unchecked")
  protected int countCriteriaResult(final Criteria c) {
    CriteriaImpl impl = (CriteriaImpl) c;


    // 先把Projection、ResultTransformer、OrderBy取出来,清空三者后再执行Count操作
    Projection projection = impl.getProjection();
    ResultTransformer transformer = impl.getResultTransformer();


    List<CriteriaImpl.OrderEntry> orderEntries = null;
    try {
      orderEntries = (List) ReflectionUtils.getFieldValue(impl,

View Full Code Here

        if (pageRequest != null) {
            // see https://forum.hibernate.org/viewtopic.php?t=974802


            // Save original Projection and ResultTransformer
            CriteriaImpl cImpl = (CriteriaImpl) c;
            Projection origProjection = cImpl.getProjection();
            ResultTransformer origRt = cImpl.getResultTransformer();


            // Get total number of records by setting a rowCount projection
            page.setMaxRecords(findRowCount(c));

View Full Code Here

  public String[] getColumnsUsingProjection(
      Criteria subcriteria,
          String propertyName) throws HibernateException {


    //first look for a reference to a projection alias
    final Projection projection = rootCriteria.getProjection();
    String[] projectionColumns = null;
    if ( projection != null ) {
      projectionColumns = ( projection instanceof EnhancedProjection ?
          ( ( EnhancedProjection ) projection ).getColumnAliases( propertyName, 0, rootCriteria, this ) :
          projection.getColumnAliases( propertyName, 0 )
      );
    }
    if ( projectionColumns == null ) {
      //it does not refer to an alias of a projection,
      //look for a property

View Full Code Here

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