Class FunctionNode
java.lang.Object
com.yahoo.searchlib.rankingexpression.rule.ExpressionNode
com.yahoo.searchlib.rankingexpression.rule.CompositeNode
com.yahoo.searchlib.rankingexpression.rule.FunctionNode
- All Implemented Interfaces:
Serializable
Invocation of a native function.
- Author:
- Simon Thoresen Hult, bratseth
- See Also:
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Constructor Summary
ConstructorDescriptionFunctionNode
(Function function, ExpressionNode argument) FunctionNode
(Function function, ExpressionNode argument1, ExpressionNode argument2) Creates a binary function node -
Method Summary
Modifier and TypeMethodDescriptionchildren()
Returns the arguments of thisReturns the value of evaluating this expression over the given context.int
hashCode()
Returns a hashcode computed from the data in thissetChildren
(List<ExpressionNode> children) Returns a new function node with the children replaced by the given childrentoString
(StringBuilder b, SerializationContext context, Deque<String> path, CompositeNode parent) Returns this in serialized form.com.yahoo.tensor.TensorType
Returns the type this will return if evaluated with the given context.Methods inherited from class com.yahoo.searchlib.rankingexpression.rule.ExpressionNode
equals, toString, toString
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Constructor Details
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FunctionNode
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FunctionNode
Creates a binary function node
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Method Details
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getFunction
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children
Returns the arguments of this- Specified by:
children
in classCompositeNode
- Returns:
- The children of this.
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toString
public StringBuilder toString(StringBuilder b, SerializationContext context, Deque<String> path, CompositeNode parent) Description copied from class:ExpressionNode
Returns this in serialized form.- Specified by:
toString
in classExpressionNode
- Parameters:
b
- the StringBuilder that will be appended tocontext
- the serialization contextpath
- the call path to this, used for cycle detection, or null if this is a rootparent
- the parent node of this, or null if it is a root- Returns:
- the main script, referring to script instances.
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type
Description copied from class:ExpressionNode
Returns the type this will return if evaluated with the given context.- Specified by:
type
in classExpressionNode
- Parameters:
context
- the variable type bindings to use for this evaluation
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evaluate
Description copied from class:ExpressionNode
Returns the value of evaluating this expression over the given context.- Specified by:
evaluate
in classExpressionNode
- Parameters:
context
- the variable bindings to use for this evaluation
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setChildren
Returns a new function node with the children replaced by the given children- Specified by:
setChildren
in classCompositeNode
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hashCode
public int hashCode()Description copied from class:ExpressionNode
Returns a hashcode computed from the data in this- Specified by:
hashCode
in classExpressionNode
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