/// <summary>
/// Constructs a new DbQueryCommandTree that uses the specified metadata workspace.
/// </summary>
/// <param name="metadata">The metadata workspace that the command tree should use.</param>
/// <param name="dataSpace">The logical 'space' that metadata in the expressions used in this command tree must belong to.</param>
/// <param name="query">A <see cref="DbExpression"/> that defines the logic of the query.</param>
/// <param name="validate">When set to false the validation of the tree is turned off.</param>
/// <exception cref="ArgumentNullException"><paramref name="metadata"/> or <paramref name="query"/> is null</exception>
/// <exception cref="ArgumentException"><paramref name="dataSpace"/> does not represent a valid data space</exception>
public DbQueryCommandTree(MetadataWorkspace metadata, DataSpace dataSpace, DbExpression query, bool validate)
: base(metadata, dataSpace)
{
// Ensure the query expression is non-null
Contract.Requires(query != null);
if (validate)
{
// Use the valid workspace and data space to validate the query expression
var validator = new DbExpressionValidator(metadata, dataSpace);
validator.ValidateExpression(query, "query");
_parameters = validator.Parameters.Select(paramInfo => paramInfo.Value).ToList().AsReadOnly();
}
_query = query;
}
/// <summary>
/// Constructs a new DbQueryCommandTree that uses the specified metadata workspace.
/// </summary>
/// <param name="metadata"> The metadata workspace that the command tree should use. </param>
/// <param name="dataSpace"> The logical 'space' that metadata in the expressions used in this command tree must belong to. </param>
/// <param name="query">
/// A <see cref="DbExpression" /> that defines the logic of the query.
/// </param>
/// <param name="validate"> When set to false the validation of the tree is turned off. </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="metadata" />
/// or
/// <paramref name="query" />
/// is null
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="dataSpace" />
/// does not represent a valid data space
/// </exception>
public DbQueryCommandTree(MetadataWorkspace metadata, DataSpace dataSpace, DbExpression query, bool validate)
: base(metadata, dataSpace)
{
// Ensure the query expression is non-null
Check.NotNull(query, "query");
if (validate)
{
// Use the valid workspace and data space to validate the query expression
var validator = new DbExpressionValidator(metadata, dataSpace);
validator.ValidateExpression(query, "query");
_parameters = validator.Parameters.Select(paramInfo => paramInfo.Value).ToList().AsReadOnly();
}
_query = query;
}
/// <summary>
/// Constructs a new DbQueryCommandTree that uses the specified metadata workspace.
/// </summary>
/// <param name="metadata"> The metadata workspace that the command tree should use. </param>
/// <param name="dataSpace"> The logical 'space' that metadata in the expressions used in this command tree must belong to. </param>
/// <param name="query">
/// A <see cref="DbExpression" /> that defines the logic of the query.
/// </param>
/// <param name="validate"> When set to false the validation of the tree is turned off. </param>
/// <param name="useDatabaseNullSemantics">A boolean that indicates whether database null semantics are exhibited when comparing
/// two operands, both of which are potentially nullable.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="metadata" />
/// or
/// <paramref name="query" />
/// is null
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="dataSpace" />
/// does not represent a valid data space
/// </exception>
public DbQueryCommandTree(MetadataWorkspace metadata, DataSpace dataSpace, DbExpression query, bool validate, bool useDatabaseNullSemantics)
: base(metadata, dataSpace, useDatabaseNullSemantics)
{
// Ensure the query expression is non-null
Check.NotNull(query, "query");
if (validate)
{
// Use the valid workspace and data space to validate the query expression
var validator = new DbExpressionValidator(metadata, dataSpace);
validator.ValidateExpression(query, "query");
_parameters = new ReadOnlyCollection <DbParameterReferenceExpression>(
validator.Parameters.Select(paramInfo => paramInfo.Value).ToList());
}
_query = query;
}
/// <summary>
/// Constructs a new DbQueryCommandTree that uses the specified metadata workspace.
/// </summary>
/// <param name="metadata"> The metadata workspace that the command tree should use. </param>
/// <param name="dataSpace"> The logical 'space' that metadata in the expressions used in this command tree must belong to. </param>
/// <param name="query">
/// A <see cref="T:System.Data.Entity.Core.Common.CommandTrees.DbExpression" /> that defines the logic of the query.
/// </param>
/// <param name="validate"> When set to false the validation of the tree is turned off. </param>
/// <param name="useDatabaseNullSemantics">A boolean that indicates whether database null semantics are exhibited when comparing
/// two operands, both of which are potentially nullable.</param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="metadata" />
/// or
/// <paramref name="query" />
/// is null
/// </exception>
/// <exception cref="T:System.ArgumentException">
/// <paramref name="dataSpace" />
/// does not represent a valid data space
/// </exception>
public DbQueryCommandTree(
MetadataWorkspace metadata,
DataSpace dataSpace,
DbExpression query,
bool validate,
bool useDatabaseNullSemantics)
: base(metadata, dataSpace, useDatabaseNullSemantics)
{
Check.NotNull <DbExpression>(query, nameof(query));
if (validate)
{
DbExpressionValidator expressionValidator = new DbExpressionValidator(metadata, dataSpace);
expressionValidator.ValidateExpression(query, nameof(query));
this._parameters = new ReadOnlyCollection <DbParameterReferenceExpression>((IList <DbParameterReferenceExpression>)expressionValidator.Parameters.Select <KeyValuePair <string, DbParameterReferenceExpression>, DbParameterReferenceExpression>((Func <KeyValuePair <string, DbParameterReferenceExpression>, DbParameterReferenceExpression>)(paramInfo => paramInfo.Value)).ToList <DbParameterReferenceExpression>());
}
this._query = query;
}
/// <summary>
/// Constructs a new DbQueryCommandTree that uses the specified metadata workspace.
/// </summary>
/// <param name="metadata"> The metadata workspace that the command tree should use. </param>
/// <param name="dataSpace"> The logical 'space' that metadata in the expressions used in this command tree must belong to. </param>
/// <param name="query">
/// A <see cref="DbExpression" /> that defines the logic of the query.
/// </param>
/// <param name="validate"> When set to false the validation of the tree is turned off. </param>
/// <param name="useDatabaseNullSemantics">A boolean that indicates whether database null semantics are exhibited when comparing
/// two operands, both of which are potentially nullable.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="metadata" />
/// or
/// <paramref name="query" />
/// is null
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="dataSpace" />
/// does not represent a valid data space
/// </exception>
public DbQueryCommandTree(MetadataWorkspace metadata, DataSpace dataSpace, DbExpression query, bool validate, bool useDatabaseNullSemantics)
: base(metadata, dataSpace, useDatabaseNullSemantics)
{
// Ensure the query expression is non-null
Check.NotNull(query, "query");
if (validate)
{
// Use the valid workspace and data space to validate the query expression
var validator = new DbExpressionValidator(metadata, dataSpace);
validator.ValidateExpression(query, "query");
_parameters = new ReadOnlyCollection<DbParameterReferenceExpression>(
validator.Parameters.Select(paramInfo => paramInfo.Value).ToList());
}
_query = query;
}
private DbQueryCommandTree(MetadataWorkspace metadata,
DataSpace dataSpace,
DbExpression query,
bool validate)
: base(metadata, dataSpace)
{
// Ensure the query expression is non-null
EntityUtil.CheckArgumentNull(query, "query");
if (validate)
{
// Use the valid workspace and data space to validate the query expression
DbExpressionValidator validator = new DbExpressionValidator(metadata, dataSpace);
validator.ValidateExpression(query, "query");
this._parameters = validator.Parameters.Select(paramInfo => paramInfo.Value).ToList().AsReadOnly();
}
this._query = query;
}
private DbQueryCommandTree(MetadataWorkspace metadata,
DataSpace dataSpace,
DbExpression query,
bool validate)
: base(metadata, dataSpace)
{
// Ensure the query expression is non-null
EntityUtil.CheckArgumentNull(query, "query");
if (validate)
{
// Use the valid workspace and data space to validate the query expression
DbExpressionValidator validator = new DbExpressionValidator(metadata, dataSpace);
validator.ValidateExpression(query, "query");
this._parameters = validator.Parameters.Select(paramInfo => paramInfo.Value).ToList().AsReadOnly();
}
this._query = query;
}
