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QueryExpression.cs
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64 lines (54 loc) · 1.95 KB
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using System;
namespace SharpMap.Expressions
{
public class QueryExpression : Expression
{
private readonly ProjectionExpression _projection;
private readonly PredicateExpression _predicate;
private readonly SortExpressionCollectionExpression _sort;
public QueryExpression(ProjectionExpression projection, PredicateExpression predicate)
: this(projection, predicate, null)
{
}
public QueryExpression(ProjectionExpression projection, PredicateExpression predicate, SortExpressionCollectionExpression sort)
{
_projection = projection;
_predicate = predicate;
_sort = sort;
}
public ProjectionExpression Projection
{
get { return _projection; }
}
public PredicateExpression Predicate
{
get { return _predicate; }
}
public SortExpressionCollectionExpression Sort
{
get
{
return _sort;
}
}
public override Boolean Contains(Expression other)
{
QueryExpression otherQuery = other as QueryExpression;
return otherQuery != null &&
Contains(otherQuery.Predicate, Predicate) &&
Contains(otherQuery.Projection, Projection);
}
public override Expression Clone()
{
return new QueryExpression((ProjectionExpression)_projection.Clone(),
(PredicateExpression)_predicate.Clone());
}
public override Boolean Equals(Expression other)
{
QueryExpression otherQuery = other as QueryExpression;
return otherQuery != null &&
Equals(otherQuery.Predicate, Predicate) &&
Equals(otherQuery.Projection, Projection);
}
}
}