Class ComparisonNode
- java.lang.Object
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- com.yahoo.searchlib.rankingexpression.rule.ExpressionNode
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- com.yahoo.searchlib.rankingexpression.rule.CompositeNode
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- com.yahoo.searchlib.rankingexpression.rule.BooleanNode
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- com.yahoo.searchlib.rankingexpression.rule.ComparisonNode
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- All Implemented Interfaces:
java.io.Serializable
public class ComparisonNode extends BooleanNode
A node which returns the outcome of a comparison.- Author:
- bratseth
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ComparisonNode(ExpressionNode leftCondition, TruthOperator operator, ExpressionNode rightCondition)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.util.List<ExpressionNode>
children()
Returns a read-only list containing the immediate children of this compositeValue
evaluate(Context context)
Returns the value of evaluating this expression over the given context.ExpressionNode
getLeftCondition()
TruthOperator
getOperator()
ExpressionNode
getRightCondition()
ComparisonNode
setChildren(java.util.List<ExpressionNode> children)
Returns a copy of this where the children is replaced by the given children.java.lang.StringBuilder
toString(java.lang.StringBuilder string, SerializationContext context, java.util.Deque<java.lang.String> path, CompositeNode parent)
Returns a script instance of this based on the supplied script functions.com.yahoo.tensor.TensorType
type(com.yahoo.tensor.evaluation.TypeContext<Reference> context)
Returns the type this will return if evaluated with the given context.-
Methods inherited from class com.yahoo.searchlib.rankingexpression.rule.ExpressionNode
equals, hashCode, toString, toString
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Constructor Detail
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ComparisonNode
public ComparisonNode(ExpressionNode leftCondition, TruthOperator operator, ExpressionNode rightCondition)
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Method Detail
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children
public java.util.List<ExpressionNode> children()
Description copied from class:CompositeNode
Returns a read-only list containing the immediate children of this composite
- Specified by:
children
in classCompositeNode
- Returns:
- The children of this.
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getOperator
public TruthOperator getOperator()
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getLeftCondition
public ExpressionNode getLeftCondition()
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getRightCondition
public ExpressionNode getRightCondition()
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toString
public java.lang.StringBuilder toString(java.lang.StringBuilder string, SerializationContext context, java.util.Deque<java.lang.String> path, CompositeNode parent)
Description copied from class:ExpressionNode
Returns a script instance of this based on the supplied script functions.- Specified by:
toString
in classExpressionNode
- Parameters:
string
- 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 a root- Returns:
- the main script, referring to script instances.
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type
public com.yahoo.tensor.TensorType type(com.yahoo.tensor.evaluation.TypeContext<Reference> context)
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
public Value evaluate(Context context)
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
public ComparisonNode setChildren(java.util.List<ExpressionNode> children)
Description copied from class:CompositeNode
Returns a copy of this where the children is replaced by the given children.- Specified by:
setChildren
in classCompositeNode
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