Class TagPathReadExpression
- java.lang.Object
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- com.inductiveautomation.ignition.common.expressions.AbstractExpression
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- com.inductiveautomation.ignition.common.expressions.TagPathReadExpression
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- All Implemented Interfaces:
Expression
public class TagPathReadExpression extends AbstractExpression
A general purpose expression that can read a tag path from a generic reader function.
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Field Summary
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Fields inherited from class com.inductiveautomation.ignition.common.expressions.AbstractExpression
children, context, updateListener
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Constructor Summary
Constructors Constructor Description TagPathReadExpression(TagPath path, java.util.function.Function<TagPath,QualifiedValue> reader)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description QualifiedValue
execute()
Compute and return the value of this expressionjava.lang.String
getOpName()
Return a human-readable name for the operation that this expression performs-
Methods inherited from class com.inductiveautomation.ignition.common.expressions.AbstractExpression
connect, disconnect, getChildren, setChildren, shutdown, startup
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.inductiveautomation.ignition.common.expressions.Expression
getType
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Constructor Detail
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TagPathReadExpression
public TagPathReadExpression(TagPath path, java.util.function.Function<TagPath,QualifiedValue> reader)
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Method Detail
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execute
@Nonnull public QualifiedValue execute() throws ExpressionException
Description copied from interface:Expression
Compute and return the value of this expression- Throws:
ExpressionException
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getOpName
public java.lang.String getOpName()
Description copied from interface:Expression
Return a human-readable name for the operation that this expression performs
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