Package com.apama.event.parser
Class SequenceFieldType<E>
- java.lang.Object
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- com.apama.event.parser.FieldType<java.util.List<E>>
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- com.apama.event.parser.SequenceFieldType<E>
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- Type Parameters:
E
- The Java type used for the elements of this sequence.
public class SequenceFieldType<E> extends FieldType<java.util.List<E>>
Represents the Apamasequence<type>
type, for which values are specified asList
objects.
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Constructor Summary
Constructors Constructor Description SequenceFieldType(FieldType<E> elementType)
Construct a new field type representing a sequence whose members are all of a given field type.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
assertAssignable(java.lang.Object c, java.lang.String fieldName)
This method is intended for internal use only and may be removed at any time - do not use.java.util.List<E>
defaultValue()
Get the default value for Sequence field type.FieldType<E>
getElementType()
Get the type of the elements.java.lang.String
getName()
Return the name of this type.java.util.List<E>
parse(java.lang.String value)
Convert a value of this type from the format used in Apama event strings, into a List object.java.lang.String
toString()
Returns a String representation of the field type.-
Methods inherited from class com.apama.event.parser.FieldType
format, getTypeClass, newField
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Constructor Detail
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SequenceFieldType
public SequenceFieldType(FieldType<E> elementType)
Construct a new field type representing a sequence whose members are all of a given field type. This constructor is provided for backwards compatibility, the recommended way to construct this field type is withFieldTypes.sequence(FieldType)
.- Parameters:
elementType
- type of elements this sequence contains- See Also:
FieldTypes.sequence(FieldType)
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Method Detail
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getName
public java.lang.String getName()
Description copied from class:FieldType
Return the name of this type.
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getElementType
public FieldType<E> getElementType()
Get the type of the elements.- Returns:
- the type of sub-elements
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assertAssignable
public void assertAssignable(java.lang.Object c, java.lang.String fieldName)
Description copied from class:FieldType
This method is intended for internal use only and may be removed at any time - do not use.- Specified by:
assertAssignable
in classFieldType<java.util.List<E>>
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parse
public java.util.List<E> parse(java.lang.String value) throws ParserRuntimeException
Convert a value of this type from the format used in Apama event strings, into a List object.- Overrides:
parse
in classFieldType<java.util.List<E>>
- Parameters:
value
- the value to parse.- Returns:
- an object specifying the value of the string that was parsed.
- Throws:
ParserRuntimeException
- If the specified value string cannot be parsed.
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toString
public java.lang.String toString()
Description copied from class:FieldType
Returns a String representation of the field type. Note that this representation will use the Java toString() method to format the results, and is not valid monitorscript.
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defaultValue
public java.util.List<E> defaultValue()
Get the default value for Sequence field type.- Specified by:
defaultValue
in classFieldType<java.util.List<E>>
- Returns:
- An empty list
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