/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <param name="ignoreOnEmptyParameters">Block will not be counted in intersection calculations if has empty FullMatch and Contains words</param>
/// <returns></returns>
public SBlock And(SBlock block, bool ignoreOnEmptyParameters = false)
{
if (this.Ignored)
{
return(this.CreateBlock(block, eOperation.OR, ignoreOnEmptyParameters));
}
return(this.CreateBlock(block, eOperation.AND, ignoreOnEmptyParameters));
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <param name="ignoreOnEmptyParameters">Block will not be counted in intersection calculations if has empty FullMatch and Contains words</param>
/// <returns></returns>
public SBlock Exclude(SBlock block, bool ignoreOnEmptyParameters = false)
{
if (this.Ignored)
{
return(this.CreateBlock(block, eOperation.OR, ignoreOnEmptyParameters));
}
return(this.CreateBlock(block, eOperation.EXCLUDE, ignoreOnEmptyParameters));
}
SBlock CreateBlock(SBlock block, eOperation operation)
{
if (_tsm == null)
throw new Exception("DBreeze.Exception: first search block must be added via TextSearchTable");
if (block._tsm == null)
{
//Creating real block
block._tsm = this._tsm;
block.BlockId = this._tsm.cntBlockId++;
this._tsm.WordsPrepare(block._fullMatchWords.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Where(r => r.Length >= 2), true, ref block.ParsedWords);
this._tsm.WordsPrepare(block._containsWords.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Where(r => r.Length >= 2), false, ref block.ParsedWords);
this._tsm.toComputeWordsOrigin = true;
this._tsm.Blocks[block.BlockId] = block;
}
//Creating logical block
SBlock b = null;
switch (operation)
{
case eOperation.AND:
b = new BlockAnd();
break;
case eOperation.OR:
b = new BlockOr();
break;
case eOperation.XOR:
b = new BlockXOR();
break;
case eOperation.EXCLUDE:
b = new BlockEXCLUDE();
break;
}
b._tsm = this._tsm;
b.BlockId = this._tsm.cntBlockId++;
b.LeftBlockId = BlockId;
b.RightBlockId = block.BlockId;
b.TransBlockOperation = operation;
//SBlock b = new SBlock()
//{
// _tsm = this._tsm,
// BlockId = this._tsm.cntBlockId++,
// LeftBlockId = this.BlockId,
// RightBlockId = block.BlockId,
// TransBlockOperation = operation
//};
this._tsm.Blocks[b.BlockId] = b;
return b;
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public SBlock Xor(SBlock block)
{
return this.CreateBlock(block, eOperation.XOR);
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public SBlock Exclude(SBlock block)
{
return this.CreateBlock(block, eOperation.EXCLUDE);
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public SBlock And(SBlock block)
{
return this.CreateBlock(block, eOperation.AND);
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <param name="ignoreOnEmptyParameters">Block will not be counted in intersection calculations if has empty FullMatch and Contains words</param>
/// <returns></returns>
public SBlock Or(SBlock block, bool ignoreOnEmptyParameters = false)
{
return(this.CreateBlock(block, eOperation.OR, ignoreOnEmptyParameters));
}
SBlock CreateBlock(SBlock block, eOperation operation, bool ignoreOnEmptyParameters = false)
{
if (_tsm == null)
{
throw new Exception("DBreeze.Exception: first search block must be added via TextSearchTable");
}
//Returning parent block in case if this block must be ignored
if (ignoreOnEmptyParameters && String.IsNullOrEmpty(block._fullMatchWords) && String.IsNullOrEmpty(block._containsWords))
{
return(this);
}
if (block._tsm == null)
{
//Creating real block
block._tsm = this._tsm;
block.BlockId = this._tsm.cntBlockId++;
this._tsm.WordsPrepare(block._fullMatchWords.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Where(r => r.Length > 2), true, ref block.ParsedWords);
this._tsm.WordsPrepare(block._containsWords.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Where(r => r.Length > 2), false, ref block.ParsedWords);
this._tsm.toComputeWordsOrigin = true;
this._tsm.Blocks[block.BlockId] = block;
}
//Creating logical block
SBlock b = null;
switch (operation)
{
case eOperation.AND:
b = new BlockAnd();
break;
case eOperation.OR:
b = new BlockOr();
break;
case eOperation.XOR:
b = new BlockXOR();
break;
case eOperation.EXCLUDE:
b = new BlockEXCLUDE();
break;
}
b._tsm = this._tsm;
b.BlockId = this._tsm.cntBlockId++;
b.LeftBlockId = BlockId;
b.RightBlockId = block.BlockId;
b.TransBlockOperation = operation;
//SBlock b = new SBlock()
//{
// _tsm = this._tsm,
// BlockId = this._tsm.cntBlockId++,
// LeftBlockId = this.BlockId,
// RightBlockId = block.BlockId,
// TransBlockOperation = operation
//};
this._tsm.Blocks[b.BlockId] = b;
return(b);
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public SBlock Exclude(SBlock block)
{
return(this.CreateBlock(block, eOperation.EXCLUDE));
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public SBlock Xor(SBlock block)
{
return(this.CreateBlock(block, eOperation.XOR));
}
/// <summary>
/// Returns last added block. Can be added existing block or new block in format
/// new DBreeze.TextSearch.BlockAnd(... or new DBreeze.TextSearch.BlockOr(
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public SBlock And(SBlock block)
{
return(this.CreateBlock(block, eOperation.AND));
}
