Uses of Class
com.yahoo.searchlib.expression.ExpressionNode

Packages that use ExpressionNode

Package	Description
com.yahoo.searchlib.aggregation
com.yahoo.searchlib.expression

Uses of ExpressionNode in com.yahoo.searchlib.aggregation

Subclasses of ExpressionNode in com.yahoo.searchlib.aggregation

Modifier and Type	Class	Description
class	AggregationResult	The result of some aggregation
class	AverageAggregationResult	This is an aggregated result holding the average of all results.
class	CountAggregationResult	This is an aggregated result holding the number of aggregated hits.
class	ExpressionCountAggregationResult	This is an aggregated result holding the number of unique documents matching a given expression.
class	HitsAggregationResult	This is an aggregated result holding the top n hits for a single group.
class	MaxAggregationResult	This is an aggregated result holding the maximum result of the matching hits.
class	MinAggregationResult	This is an aggregated result holding the minimum result of the matching hits.
class	StandardDeviationAggregationResult
class	SumAggregationResult	This is an aggregated result holding the sum of the aggregating expression for all matching hits.
class	XorAggregationResult	This is an aggregated result holding the xor of the aggregating expression for all matching hits.

Methods in com.yahoo.searchlib.aggregation that return ExpressionNode

Modifier and Type	Method	Description
ExpressionNode	AggregationResult.getExpression()	Returns the expression to aggregate on.
ExpressionNode	GroupingLevel.getExpression()	Returns the expression used to classify hits into groups.

Methods in com.yahoo.searchlib.aggregation that return types with arguments of type ExpressionNode

Modifier and Type	Method	Description
List<ExpressionNode>	Group.getOrderByExpressions()

Methods in com.yahoo.searchlib.aggregation with parameters of type ExpressionNode

Modifier and Type	Method	Description
Group	Group.addOrderBy(ExpressionNode exp, boolean asc)	Adds an order-by expression to this group.
protected final boolean	AggregationResult.equalsExpression(ExpressionNode obj)
AggregationResult	AggregationResult.setExpression(ExpressionNode exp)	Sets the expression to aggregate on.
GroupingLevel	GroupingLevel.setExpression(ExpressionNode exp)	Sets the expression used to classify hits into groups.

Uses of ExpressionNode in com.yahoo.searchlib.expression

Subclasses of ExpressionNode in com.yahoo.searchlib.expression

Modifier and Type	Class	Description
class	AddFunctionNode	This function is an instruction to add all arguments.
class	AggregationRefNode	This node holds the index of an ExpressionNode in an external array, and is used as a proxy in the back-end to allow aggregators to be used in expressions.
class	AndFunctionNode	This function is an instruction to perform bitwise AND on the result of all arguments in order.
class	ArrayAtLookupNode	This function is an instruction to retrieve an index a named array attribute.
class	AttributeMapLookupNode	This function is an instruction to do a lookup in a map attribute, returning the value.
class	AttributeNode	This function is an instruction to retrieve the value of a named attribute.
class	BitFunctionNode	This is an abstract super-class for all non-unary functions that operator on bit values.
class	CatFunctionNode	This function is an instruction to concatenate the bits of all arguments in order.
class	ConstantNode	This abstract expression node represents a function to execute.
class	DebugWaitFunctionNode	This is a debug wait function node that waits for a specified amount of time before executing its expression.
class	DivideFunctionNode	This function is an instruction to divide the arguments in order.
class	DocumentAccessorNode	This abstract expression node represents a document whose content is accessed depending on the subclass implementation of this.
class	DocumentFieldNode	The node is a request to retrieve the content of a document field.
class	FixedWidthBucketFunctionNode	This function assign a fixed width bucket to each input value
class	FunctionNode	This abstract expression node represents a function to execute.
class	GetDocIdNamespaceSpecificFunctionNode	The node is a request to retrieve the namespace-specific content of a document id.
class	InterpolatedLookupNode	This function is an instruction to retrieve the value of a named attribute.
class	MathFunctionNode	This function is an instruction to negate its argument.
class	MaxFunctionNode	This function is an instruction to return the maximum value of all its arguments.
class	MD5BitFunctionNode	This function is a request to calculate the MD5 of the result of its argument.
class	MinFunctionNode	This function is an instruction to return the minimum value of all its arguments.
class	ModuloFunctionNode	This function is an instruction to modulo the arguments in order.
class	MultiArgFunctionNode	This is an abstract super-class for all functions that accepts multiple arguments.
class	MultiplyFunctionNode	This function is an instruction to multiply all arguments.
class	NegateFunctionNode	This function is an instruction to negate its argument.
class	NormalizeSubjectFunctionNode	This function is an instruction to negate its argument.
class	NumElemFunctionNode	This function is an instruction to negate its argument.
class	NumericFunctionNode	This is an abstract class for all functions that perform arithmetics.
class	OrFunctionNode	This function is an instruction to perform bitwise OR on the result of all arguments.
class	RangeBucketPreDefFunctionNode	This function assign a fixed width bucket to each input value
class	RelevanceNode	This abstract expression node represents a function to execute.
class	ReverseFunctionNode	This class will revert the order on any multivalues.
class	SortFunctionNode
class	StrCatFunctionNode	This function is an instruction to concatenate the bits of all arguments in order.
class	StrLenFunctionNode	This function is an instruction to negate its argument.
class	TimeStampFunctionNode	This function assign a fixed width bucket to each input value.
class	ToFloatFunctionNode	This function is an instruction to negate its argument.
class	ToIntFunctionNode	This function is an instruction to negate its argument.
class	ToRawFunctionNode	This function converts its argument to a raw function node.
class	ToStringFunctionNode	This function is an instruction to negate its argument.
class	UcaFunctionNode	This function is a request to use the Unicode Collation Algorithm specification when sorting this field.
class	UnaryBitFunctionNode	This is an abstract super-class for all unary functions that operator on bit values.
class	UnaryFunctionNode	This is an abstract super-class for all functions that accept only a single argument.
class	XorBitFunctionNode	This function is a request to bitwise XOR the result of its first argument with itself in chunks of the second argument number of bits.
class	XorFunctionNode	This function is an instruction to perform bitwise XOR on the result of all arguments in order.
class	ZCurveFunctionNode	This function decompose two-dimensonal zcurve values into x and y values.

Methods in com.yahoo.searchlib.expression that return ExpressionNode

Modifier and Type	Method	Description
ExpressionNode	ExpressionNode.clone()
ExpressionNode	MultiArgFunctionNode.getArg(int i)	Returns the argument at the given index.
ExpressionNode	UnaryFunctionNode.getArg()	Return the single argument given to this function.

Methods in com.yahoo.searchlib.expression with parameters of type ExpressionNode

Modifier and Type	Method	Description
MultiArgFunctionNode	MultiArgFunctionNode.addArg(ExpressionNode arg)	Adds the given argument to this function.
boolean	AggregationRefNode.equalsExpression(ExpressionNode obj)
protected boolean	ConstantNode.equalsExpression(ExpressionNode obj)
protected boolean	DocumentFieldNode.equalsExpression(ExpressionNode obj)
protected abstract boolean	ExpressionNode.equalsExpression(ExpressionNode obj)
protected final boolean	FunctionNode.equalsExpression(ExpressionNode obj)
protected boolean	GetDocIdNamespaceSpecificFunctionNode.equalsExpression(ExpressionNode obj)
protected boolean	RelevanceNode.equalsExpression(ExpressionNode obj)

Method parameters in com.yahoo.searchlib.expression with type arguments of type ExpressionNode

Modifier and Type	Method	Description
protected boolean	MultiArgFunctionNode.onCalculate(List<ExpressionNode> args, ResultNode result)

Constructors in com.yahoo.searchlib.expression with parameters of type ExpressionNode

Modifier	Constructor	Description
	ArrayAtLookupNode(String attribute, ExpressionNode arg)	Constructs an instance of this class with given attribute name and index argument.
	DebugWaitFunctionNode(ExpressionNode arg, double waitTime, boolean busyWait)	Constructs an instance of this class with given argument and wait parameters.
	FixedWidthBucketFunctionNode(NumericResultNode w, ExpressionNode arg)	Create a bucket expression with the given width and the given subexpression
	InterpolatedLookupNode(String attribute, ExpressionNode arg)	Constructs an instance of this class with given attribute name and lookup argument.
	MathFunctionNode(ExpressionNode exp, MathFunctionNode.Function fnc)
	MD5BitFunctionNode(ExpressionNode arg, int numBits)	Constructs an instance of this class with given argument and number of bits.
	NegateFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	NormalizeSubjectFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	NumElemFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	RangeBucketPreDefFunctionNode(ResultNodeVector v, ExpressionNode arg)	Create a bucket expression with the given width and the given subexpression
	ReverseFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	SortFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	StrLenFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	TimeStampFunctionNode(ExpressionNode arg, TimeStampFunctionNode.TimePart part, boolean gmt)	Create a bucket expression with the given width and the given subexpression.
	ToFloatFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	ToIntFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	ToRawFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	ToStringFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.
	UcaFunctionNode(ExpressionNode arg, String locale)	Create an UCA node with a specific locale.
	UcaFunctionNode(ExpressionNode arg, String locale, String strength)	Create an UCA node with a specific locale and strength setting.
	UnaryBitFunctionNode(ExpressionNode arg, int numBits)	Constructs an instance of this class with given argument and number of bits.
	XorBitFunctionNode(ExpressionNode arg, int numBits)	Constructs an instance of this class with given argument and number of bits.
	ZCurveFunctionNode(ExpressionNode arg, ZCurveFunctionNode.Dimension dimension)