Examples of com.impossibl.postgres.types.CompositeType

com.impossibl.postgres.types.CompositeType
A database composite type. @author kdubb

   */
  CompositeType.Attribute getRelAttr(int columnIndex) throws SQLException {


    ResultField field = get(columnIndex);


    CompositeType relType = connection.getRegistry().loadRelationType(field.relationId);
    if (relType == null)
      return null;


    return relType.getAttribute(field.relationAttributeNumber);
  }

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  @Override
  public boolean isAutoIncrement(int column) throws SQLException {


    ResultField field = get(column);
    CompositeType relType = connection.getRegistry().loadRelationType(field.relationId);


    return SQLTypeMetaData.isAutoIncrement(field.typeRef.get(), relType, field.relationAttributeNumber);
  }

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  @Override
  public int isNullable(int column) throws SQLException {


    ResultField field = get(column);
    CompositeType relType = connection.getRegistry().loadRelationType(field.relationId);


    return SQLTypeMetaData.isNullable(field.typeRef.get(), relType, field.relationAttributeNumber);
  }

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    //Note: there seems to be some debate about whether this should return
    //query aliases or table names. We are returning table names, if
    //available, as this is at least more useful than always returning
    //null since we never have the query table aliases


    CompositeType relType = getRelType(column);
    if (relType == null)
      return "";


    return relType.getName();
  }

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  @Override
  public String getColumnTypeName(int column) throws SQLException {


    ResultField field = get(column);
    CompositeType relType = connection.getRegistry().loadRelationType(field.relationId);


    return SQLTypeMetaData.getTypeName(field.typeRef.get(), relType, field.relationAttributeNumber);
  }

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      return new PGStruct(connection, ((Record) val).getType(), ((Record) val).getValues());
    }
    else if (SQLData.class.isInstance(val) && sourceType instanceof CompositeType) {


      CompositeType compType = (CompositeType) sourceType;


      PGSQLOutputImpl out = new PGSQLOutputImpl(connection, compType);


      ((SQLData) val).writeSQL(out);


      return new PGStruct(connection, compType, out.getAttributeValues());
    }
    else if (val instanceof Object[] && sourceType instanceof CompositeType) {


      CompositeType compType = (CompositeType) sourceType;


      return new PGStruct(connection, compType, (Object[]) val);
    }


    throw createCoercionException(val.getClass(), Struct.class);

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      return (Record) val;
    }
    else if (sourceType instanceof CompositeType) {


      CompositeType compType = (CompositeType) sourceType;


      Object[] attributeVals;


      if (val instanceof Struct) {


        Struct struct = (Struct) val;
        attributeVals = struct.getAttributes();
      }
      else if (SQLData.class.isInstance(val)) {


        PGSQLOutputImpl out = new PGSQLOutputImpl(connection, compType);


        ((SQLData) val).writeSQL(out);


        attributeVals = out.getAttributeValues();
      }
      else {


        throw createCoercionException(val.getClass(), Record.class);
      }


      if (compType.getAttributes().size() != attributeVals.length) {


        throw createCoercionException(val.getClass(), Record.class);
      }


      for (int c = 0; c < attributeVals.length; ++c) {


        Type attrType = compType.getAttribute(c + 1).type;
        Class<?> attrTargetType = mapSetType(format, attrType);


        attributeVals[c] = coerce(format, attributeVals[c], attrType, attrTargetType, typeMap, zone, connection);
      }

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      return null;
    }
    else if (sourceType instanceof CompositeType) {


      CompositeType compType = (CompositeType) sourceType;


      Object[] attributeVals;


      if (val instanceof Struct) {


        Struct struct = (Struct) val;
        attributeVals = struct.getAttributes();
      }
      else if (val instanceof Record) {


        Record record = (Record) val;
        attributeVals = record.getValues();
      }
      else {


        throw createCoercionException(val.getClass(), targetType);
      }


      Object dst;
      try {
        dst = targetType.newInstance();
      }
      catch (InstantiationException | IllegalAccessException e) {
        throw createCoercionException(val.getClass(), targetType, e);
      }


      PGSQLInputImpl in = new PGSQLInputImpl(connection, compType, typeMap, attributeVals);


      ((SQLData) dst).readSQL(in, compType.getName());


      return dst;
    }


    throw createCoercionException(val.getClass(), targetType);

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    }


    @Override
    public Object decode(Type type, Short typeLength, Integer typeModifier, ByteBuf buffer, Context context) throws IOException {


      CompositeType compType = (CompositeType) type;


      Record record = null;


      int length = buffer.readInt();


      if (length != -1) {


        long readStart = buffer.readerIndex();


        int itemCount = buffer.readInt();


        Object[] attributeVals = new Object[itemCount];


        for (int c = 0; c < itemCount; ++c) {


          Attribute attribute = compType.getAttribute(c + 1);


          Type attributeType = context.getRegistry().loadType(buffer.readInt());


          if (attributeType.getId() != attribute.type.getId()) {

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        Record record = (Record) val;


        Object[] attributeVals = record.getValues();


        CompositeType compType = (CompositeType) type;


        Collection<Attribute> attributes = compType.getAttributes();


        buffer.writeInt(attributes.size());


        for (Attribute attribute : attributes) {

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Related Classes of com.impossibl.postgres.types.CompositeType

com.impossibl.postgres.jdbc.PGResultSetMetaData

com.impossibl.postgres.jdbc.SQLTypeUtils

com.impossibl.postgres.system.procs.Records$BinDecoder

com.impossibl.postgres.system.procs.Records$BinEncoder

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