private bool TryGetTable(MemberExpression me)
{
if (me == null)
{
this.fallback = true;
return(false);
}
TableFindResult result = this.tableFinder.Find(me);
if (result.QueryString != null)
{
this.queryBuilder.Append(result.QueryString);
}
this.arguments.AddRange(result.Arguments);
if (Table == null)
{
Table = result.Table;
}
else if (Table != result.Table)
{
this.fallback = true;
return(false);
}
return(true);
}
protected override Expression VisitMember(MemberExpression memberExpression)
{
TableFindResult result = tableFinder.Find(memberExpression);
if (table == null)
{
table = result;
}
else if (Table != result.Table || result.MimeType != table.MimeType)
{
Fallback = true;
return(memberExpression);
}
ContentResolverColumnMapping cmap = tableFinder.GetColumn(memberExpression.Member);
if (cmap == null || cmap.Columns == null)
{
Fallback = true;
return(memberExpression);
}
currentMap = cmap;
if (cmap.Columns.Length == 1)
{
builder.Append(cmap.Columns[0]);
}
else
{
throw new NotSupportedException();
}
return(base.VisitMember(memberExpression));
}
private Boolean TryGetTable(MemberExpression me)
{
if (me == null)
{
fallback = true;
return(false);
}
TableFindResult result = tableFinder.Find(me);
if (result.MimeType != null)
{
if (queryBuilder.Length > 0)
{
queryBuilder.Append(" AND ");
}
queryBuilder.Append(String.Format("({0} = ?)", ContactsContract.DataColumns.Mimetype));
}
arguments.Add(result.MimeType);
if (Table == null)
{
Table = result.Table;
}
else if (Table != result.Table)
{
fallback = true;
return(false);
}
return(true);
}
private bool TryGetTable(MemberExpression me)
{
if (me == null)
{
this.fallback = true;
return(false);
}
TableFindResult result = this.tableFinder.Find(me);
if (result.MimeType != null)
{
this.queryBuilder.Append(String.Format("({0} = ?)", ContactsContract.DataColumns.Mimetype));
}
this.arguments.Add(result.MimeType);
if (Table == null)
{
Table = result.Table;
}
else if (Table != result.Table)
{
this.fallback = true;
return(false);
}
return(true);
}
private Expression VisitWhere(MethodCallExpression methodCall)
{
Expression expression = ExpressionEvaluator.Evaluate(methodCall);
var eval = new WhereEvaluator(this.tableFinder, Table);
expression = eval.Evaluate(expression);
TableFindResult result = eval.Result;
if (Table == null)
{
Table = result.Table;
}
if (eval.Fallback || result.Table == null || result.Table != Table)
{
this.fallback = true;
return(methodCall);
}
this.arguments.AddRange(result.Arguments);
if (this.queryBuilder.Length > 0)
{
this.queryBuilder.Append(" AND ");
}
this.queryBuilder.Append(result.QueryString);
return(methodCall.Arguments[0]);
}
public WhereEvaluator(ITableFinder tableFinder, Uri existingTable)
{
this.tableFinder = tableFinder;
if (existingTable != null)
{
table = new TableFindResult(existingTable, null);
}
}
public Expression Evaluate(Expression expression)
{
expression = Visit(expression);
Result = new TableFindResult(this.table, this.builder.ToString(), this.arguments);
return(expression);
}
private Boolean TryGetTable(List <MemberExpression> memberExpressions)
{
if (memberExpressions.Count == 0)
{
fallback = true;
return(false);
}
Uri existingTable = Table;
TableFindResult presult = null;
foreach (MemberExpression me in memberExpressions)
{
TableFindResult result = tableFinder.Find(me);
if (result.Table == null)
{
fallback = true;
return(false);
}
if (existingTable == null)
{
existingTable = result.Table;
presult = result;
}
else if (existingTable != result.Table)
{
fallback = true;
return(false);
}
}
if (presult == null)
{
fallback = true;
return(false);
}
Table = presult.Table;
if (presult.MimeType != null)
{
if (queryBuilder.Length > 0)
{
queryBuilder.Append(" AND ");
}
queryBuilder.Append(String.Format("({0} = ?)", ContactsContract.DataColumns.Mimetype));
}
arguments.Add(presult.MimeType);
return(true);
}
private bool TryGetTable(List <MemberExpression> memberExpressions)
{
if (memberExpressions.Count == 0)
{
this.fallback = true;
return(false);
}
Android.Net.Uri existingTable = Table;
TableFindResult presult = null;
foreach (MemberExpression me in memberExpressions)
{
TableFindResult result = this.tableFinder.Find(me);
if (result.Table == null)
{
this.fallback = true;
return(false);
}
if (existingTable == null)
{
existingTable = result.Table;
presult = result;
}
else if (existingTable != result.Table)
{
this.fallback = true;
return(false);
}
}
if (presult == null)
{
this.fallback = true;
return(false);
}
Table = presult.Table;
if (presult.QueryString != null)
{
this.queryBuilder.Append(presult.QueryString);
}
this.arguments.AddRange(presult.Arguments);
return(true);
}
protected override Expression VisitMemberAccess(MemberExpression memberExpression)
{
TableFindResult result = this.tableFinder.Find(memberExpression);
if (this.table == null)
{
this.table = result.Table;
this.builder.Append(result.QueryString);
this.arguments.AddRange(result.Arguments);
}
else if (this.table != result.Table)
{
Fallback = true;
return(memberExpression);
}
ContentResolverColumnMapping cmap = this.tableFinder.GetColumn(memberExpression.Member);
if (cmap == null || cmap.Columns == null)
{
Fallback = true;
return(memberExpression);
}
this.currentMap = cmap;
if (this.builder.Length > 0)
{
this.builder.Append(" AND ");
}
if (cmap.Columns.Length == 1)
{
this.builder.Append(cmap.Columns[0]);
}
else
{
throw new NotSupportedException();
}
return(base.VisitMemberAccess(memberExpression));
}
protected override Expression VisitMember( MemberExpression memberExpression )
{
TableFindResult result = tableFinder.Find( memberExpression );
if(table == null)
{
table = result;
}
else if(Table != result.Table || result.MimeType != table.MimeType)
{
Fallback = true;
return memberExpression;
}
ContentResolverColumnMapping cmap = tableFinder.GetColumn( memberExpression.Member );
if(cmap == null || cmap.Columns == null)
{
Fallback = true;
return memberExpression;
}
currentMap = cmap;
if(cmap.Columns.Length == 1)
{
builder.Append( cmap.Columns[0] );
}
else
{
throw new NotSupportedException();
}
return base.VisitMember( memberExpression );
}
public WhereEvaluator( ITableFinder tableFinder, Uri existingTable )
{
this.tableFinder = tableFinder;
if(existingTable != null)
{
table = new TableFindResult( existingTable, null );
}
}
public Expression Evaluate (Expression expression)
{
expression = Visit (expression);
Result = new TableFindResult (this.table, this.builder.ToString(), this.arguments);
return expression;
}
