public static void ValidateMetadata(IProjection projection)
{
if (!projection.Identity.Schema.Equals(projection.Metadata.Identity.Schema))
{
throw ProjectionException.FromProjection(projection, "Metadata and identity must belong to the same schema.");
}
}
public static void ValidateAttributes(IProjection projection)
{
if (projection.Attributes.Any(a => !a.Metadata.Identity.Schema.Equals(projection.Metadata.Identity.Schema)))
{
throw ProjectionException.FromProjection(projection, "All attributes must belong to the same projection schema.");
}
}
public static void ValidateField(IProjection projection)
{
if (projection.Source != null && !projection.Identity.Schema.Equals(projection.Source.Identity.Schema))
{
throw ProjectionException.FromProjection(projection, "Field and identity must belong to the same schema.");
}
}
public ProjectionAttribute(ProjectionIdentity identity, IProcContext context, IProjectionMetadata metadata, IProjectionData data)
{
this.Identity = identity ?? throw ProjectionException.ArgumentNull(nameof(identity), metadata);
this.Context = context ?? throw ProjectionException.ArgumentNull(nameof(context), metadata);
this.Metadata = metadata ?? throw ProjectionException.ArgumentNull(nameof(metadata), metadata);
this.Data = data;
this.Content = SqlContent.Empty;
}
public Projection(ProjectionIdentity identity, IProcContext context, IProjectionMetadata metadata)
{
this.Identity = identity ?? throw ProjectionException.ArgumentNull(nameof(identity), metadata);
this.Context = context ?? throw ProjectionException.ArgumentNull(nameof(context), metadata);
this.Metadata = metadata;
this.Data = ProjectionData.Resolve(identity);
this.Options = ProjectionOptions.Default;
this.Header = this.CreateDefaultHeader(metadata);
}
internal Projection(IProjectionIdentity identity, IProcContext context, IProjectionMetadata metadata)
{
this.Identity = identity ?? throw ProjectionException.ArgumentNull(nameof(identity));
this.Context = context ?? throw ProjectionException.ArgumentNull(nameof(context));
this.Metadata = metadata ?? throw ProjectionException.FromAttribute(identity.Schema.Model, null, message: "Projection metadata not found.");
this.Source = identity.Field;
this.Options = new ProjectionOptions();
this.Attributes = this.CreateDefaultAttributes(this.Metadata);
}
protected ProjectionAttribute(IProjectionAttribute attribute, IProjectionMetadata metadata, IProjectionData data, ISqlContent content)
{
if (attribute == null)
{
throw ProjectionException.ArgumentNull(nameof(attribute), metadata);
}
this.Context = attribute.Context;
this.Identity = attribute.Identity;
this.Metadata = metadata ?? throw ProjectionException.ArgumentNull(nameof(metadata), metadata);
this.Data = data;
this.Content = content ?? throw ProjectionException.ArgumentNull(nameof(content), metadata);
}
public static IProjectionMetadata GetPreferredTableMetadata(IProjectionMetadata metadata)
{
if (metadata.Table != null)
{
return(metadata);
}
else if (metadata.Item?.Table != null)
{
return(metadata.Item);
}
throw ProjectionException.TableNotFound(metadata);
}
protected ProjectionAttribute(IProjectionAttribute attribute, IProjectionMetadata metadata, ISqlContent content, Func <IField> field)
{
if (attribute == null)
{
throw ProjectionException.ArgumentNull(nameof(attribute), this);
}
this.Context = attribute.Context;
this.Identity = attribute.Identity;
this.Metadata = metadata ?? throw ProjectionException.ArgumentNull(nameof(attribute), this);
this.Content = content ?? throw ProjectionException.ArgumentNull(nameof(content), this);
this.Field = field;
}
protected Projection(IProjection projection, IProjectionMetadata metadata, IProjectionData data, IEnumerable <IProjectionAttribute> header, IProjectionOptions options)
{
if (projection == null)
{
throw ProjectionException.ArgumentNull(nameof(projection), metadata: null);
}
this.Identity = projection.Identity;
this.Context = projection.Context;
this.Metadata = metadata ?? throw ProjectionException.ArgumentNull(nameof(metadata), metadata);
this.Data = data;
this.Header = header ?? throw ProjectionException.ArgumentNull(nameof(header), metadata);
this.Options = options ?? throw ProjectionException.ArgumentNull(nameof(options), metadata);
}
protected Projection(IProjection projection)
{
if (projection == null)
{
throw ProjectionException.ArgumentNull(nameof(projection), metadata: null);
}
this.Identity = projection.Identity;
this.Context = projection.Context;
this.Metadata = projection.Metadata;
this.Data = projection.Data;
this.Header = projection.Header;
this.Options = projection.Options;
}
protected Projection(IProjection projection, IProjectionMetadata metadata, IEnumerable <IProjectionAttribute> attributes, IField field, IProjectionOptions options)
{
if (projection == null)
{
throw ProjectionException.ArgumentNull(nameof(projection));
}
this.Identity = projection.Identity;
this.Context = projection.Context;
this.Metadata = metadata ?? throw ProjectionException.ArgumentNull(nameof(projection));
this.Attributes = attributes ?? throw ProjectionException.ArgumentNull(nameof(attributes));
this.Options = options ?? throw ProjectionException.ArgumentNull(nameof(options));
this.Source = field;
}
protected Projection(IProjection projection)
{
if (projection == null)
{
throw ProjectionException.ArgumentNull(nameof(projection));
}
this.Identity = projection.Identity;
this.Context = projection.Context;
this.Metadata = projection.Metadata;
this.Attributes = projection.Attributes;
this.Options = projection.Options;
this.Source = projection.Source;
}
public static IProjectionMetadata GetMetadataFromRelativeLambda(IProjection projection, LambdaExpression expression)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
string name = projection.Metadata.Identity.Notation.Lambda(expression) ?? throw ProjectionException.InvalidLambda(projection.Metadata, expression);
string fullName = projection.Metadata.Identity.Notation.Combine(projection.Metadata.Identity.Name, name);
return(projection.Metadata.Identity.Schema.Require <IProjectionMetadata>(fullName));
}
public static IJsonMetadata GetJsonMetadata(IProjectionMetadata metadata) => metadata.Identity.Lookup <IJsonMetadata>() ?? throw ProjectionException.JsonNotFound(metadata);
public static ITableMetadata GetColumnMetadata(IProjectionAttribute attribute) => attribute.Metadata.Column ?? attribute.Metadata.Item?.Column ?? throw ProjectionException.ColumnNotFound(attribute.Metadata);
