Examples of com.impossibl.postgres.types.Type

com.impossibl.postgres.types.Type
Represents a single type in the databases known types table. Type is the base of a hierarchy that mirrors the kinds of types they represent. NOTE: A Type, or one of its derived types, represents a single entry in the "pg_type" table. @author kdubb


    @Override
    public void encode(Type type, StringBuilder buffer, Object value, Context context) throws IOException {


      DomainType domainType = (DomainType) type;
      Type baseType = domainType.getBase();


      baseType.getTextCodec().encoder.encode(baseType, buffer, value, context);
    }

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  @Override
  public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
    checkClosed();


    Type type = getRegistry().loadType(typeName + "[]");
    if (type == null) {
      throw new SQLException("Array type not found");
    }


    return new PGArray(this, (ArrayType)type, elements);

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  @Override
  public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
    checkClosed();


    Type type = getRegistry().loadType(typeName);
    if (!(type instanceof CompositeType)) {
      throw new SQLException("Invalid type for struct");
    }


    return new PGStruct(this, (CompositeType)type, attributes);

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        //Header
        //


        int dimensionCount = buffer.readInt();
        /* boolean hasNulls = */ buffer.readInt() /* == 1 ? true : false */;
        Type elementType = context.getRegistry().loadType(buffer.readInt());


        //Each Dimension
        int[] dimensions = new int[dimensionCount];
        int[] lowerBounds = new int[dimensionCount];
        for (int d = 0; d < dimensionCount; ++d) {


          //Dimension
          dimensions[d] = buffer.readInt();


          //Lower bounds
          lowerBounds[d] = buffer.readInt();
        }


        if (atype.getElementType().getId() != elementType.getId()) {
          context.refreshType(atype.getId());
        }


        //
        //Array & Elements

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    }
    else {
      buffer.writeShort(paramTypes.size());
      for (int c = 0; c < paramTypes.size(); ++c) {


        Type paramType = paramTypes.get(c);
        Object paramValue = paramValues.get(c);


        Type.Codec codec = paramType.getCodec(paramType.getParameterFormat());
        codec.encoder.encode(paramType, buffer, paramValue, context);


      }
    }
  }

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    }
    else {
      length += 2;
      for (int c = 0; c < paramTypes.size(); ++c) {


        Type paramType = paramTypes.get(c);
        Object paramValue = paramValues.get(c);


        Type.Codec codec = paramType.getCodec(paramType.getParameterFormat());
        length += codec.encoder.length(paramType, paramValue, context);


      }
    }

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      if (val != null) {


        int writeStart = buffer.writerIndex();


        ArrayType atype = ((ArrayType)type);
        Type elementType = atype.getElementType();


        //
        //Header
        //


        int dimensionCount = getDimensions(val.getClass(), atype.unwrapAll());
        //Dimension count
        buffer.writeInt(dimensionCount);
        //Has nulls
        buffer.writeInt(hasNulls(val) ? 1 : 0);
        //Element type
        buffer.writeInt(elementType.getId());


        //each dimension
        Object dim = val;
        for (int d = 0; d < dimensionCount; ++d) {

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      int length = 4;


      if (val != null) {


        ArrayType arrayType = (ArrayType) type;
        Type elementType = arrayType.unwrapAll();


        int dimensionCount = getDimensions(val.getClass(), arrayType.unwrapAll());


        length += 12 + (dimensionCount * 8);

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    @Override
    public void encode(Type type, StringBuilder buffer, Object val, Context context) throws IOException {


      ArrayType arrayType = (ArrayType) type;


      Type elementType = arrayType.getElementType();


      writeArray(buffer, elementType.getDelimeter(), elementType, val, context);


    }

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


        ResultField field = resultBatch.fields.get(c);


        Type fieldType = field.typeRef.get();


        Type.Codec.Decoder decoder = fieldType.getCodec(field.format).decoder;


        Object fieldVal = decoder.decode(fieldType, field.typeLength, field.typeModifier, buffer, context);


        rowInstance[c] = fieldVal;
      }

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

com.impossibl.postgres.jdbc.CodecTest

com.impossibl.postgres.jdbc.CursorScroller

com.impossibl.postgres.jdbc.IntervalTest

com.impossibl.postgres.jdbc.PGArray

com.impossibl.postgres.jdbc.PGCallableStatement

com.impossibl.postgres.jdbc.PGConnectionImpl

com.impossibl.postgres.jdbc.PGDatabaseMetaData

com.impossibl.postgres.jdbc.PGParameterMetaData

com.impossibl.postgres.jdbc.PGPreparedStatement

com.impossibl.postgres.jdbc.PGResultSet

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