com.streambase.sb

Class CompleteDataType.FunctionType

java.lang.Object

com.streambase.sb.CompleteDataType

com.streambase.sb.CompleteDataType.FunctionType

All Implemented Interfaces:

Serializable

Enclosing class:

CompleteDataType

public static class CompleteDataType.FunctionType
extends CompleteDataType

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.streambase.sb.CompleteDataType

CompleteDataType.CaptureType, CompleteDataType.FunctionType, CompleteDataType.ListType, CompleteDataType.TupleType

Field Summary

Fields inherited from class com.streambase.sb.CompleteDataType

NULL_TO_TYPE_SCORE, SCORE_FAIL, SCORE_PASS, type, TYPE_TO_TYPE_SCORE, WILDCARD_SCORE

Constructor Summary

Constructors

Constructor and Description
FunctionType(Schema arguments, CompleteDataType returnType)

Method Summary

Modifier and Type	Method and Description
protected boolean	canAssignFromImpl(CompleteDataType other) Method for subclasses to override if they have a broader concept of type.
boolean	equals(Object obj)
boolean	equalTypes(CompleteDataType completeType) Like equals(), but ignores field type names.
Schema	getArgumentSchema() For function types, return the argument schema.
CompleteDataType	getReturnType() For function types, return the return type of the function.
int	hashCode()
long	rateCoercion(CompleteDataType to) calculate the coercion score to get coerce this → type - by default returns SCORE_PASS or SCORE_FAIL based on equals
String	toHumanString(SchemaUtil.SchemaProvider schemaProvider) Return a String describing the type suitable for error messages.

Methods inherited from class com.streambase.sb.CompleteDataType

canAssignFrom, equalBaseTypes, findSuperType, forBlob, forBlobList, forBool, forBoolean, forBoolList, forCapture, forDouble, forDoubleList, forFunction, forInt, forIntList, forList, forLong, forLongList, forString, forStringList, forTimestamp, forTimestampList, forTuple, getCaptureName, getDataType, getElementType, getName, getSchema, rateCoercion, toHumanString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FunctionType

public FunctionType(Schema arguments,
                    CompleteDataType returnType)

Method Detail

toHumanString

public String toHumanString(SchemaUtil.SchemaProvider schemaProvider)

Description copied from class: CompleteDataType

Return a String describing the type suitable for error messages.

Specified by:

toHumanString in class CompleteDataType

Parameters:

schemaProvider - A schema provider to identify named schemas

Returns:

param a suitable string

getArgumentSchema

public Schema getArgumentSchema()

Description copied from class: CompleteDataType

For function types, return the argument schema. For other types null is returned.

Overrides:

getArgumentSchema in class CompleteDataType

Returns:

the function type's argument schema

getReturnType

public CompleteDataType getReturnType()

Description copied from class: CompleteDataType

For function types, return the return type of the function. For other types, return null.

Overrides:

getReturnType in class CompleteDataType

Returns:

the function type's return type

equals

public boolean equals(Object obj)

Specified by:

equals in class CompleteDataType

hashCode

public int hashCode()

Overrides:

hashCode in class CompleteDataType

equalTypes

public boolean equalTypes(CompleteDataType completeType)

Description copied from class: CompleteDataType

Like equals(), but ignores field type names.

Specified by:

equalTypes in class CompleteDataType

Parameters:

completeType - a complete data type

Returns:

type equality

rateCoercion

public long rateCoercion(CompleteDataType to)

Description copied from class: CompleteDataType

calculate the coercion score to get coerce this → type - by default returns SCORE_PASS or SCORE_FAIL based on equals

Overrides:

rateCoercion in class CompleteDataType

Parameters:

to - the CType to converse to

Returns:

the score, use COp.java as a reference for score constants

canAssignFromImpl

protected boolean canAssignFromImpl(CompleteDataType other)

Method for subclasses to override if they have a broader concept of type.

Overrides:

canAssignFromImpl in class CompleteDataType

Parameters:

other - the other type

Returns:

type assignment compatibility