public abstract class AbstractAnsiTrimEmulationFunction extends Object implements SQLFunction
SQLFunction
providing support for implementing TRIM functionality
(as defined by both the ANSI SQL and JPA specs) in cases where the dialect may not support the full trim
function itself.
Follows the template pattern in order to implement
the render(org.hibernate.type.Type, java.util.List, org.hibernate.engine.spi.SessionFactoryImplementor)
method.Constructor and Description |
---|
AbstractAnsiTrimEmulationFunction() |
Modifier and Type | Method and Description |
---|---|
Type |
getReturnType(Type argumentType,
Mapping mapping)
The return type of the function.
|
boolean |
hasArguments()
Does this function have any arguments?
|
boolean |
hasParenthesesIfNoArguments()
If there are no arguments, are parentheses required?
|
String |
render(Type argumentType,
List args,
SessionFactoryImplementor factory)
Render the function call as SQL fragment.
|
protected abstract SQLFunction |
resolveBothSpaceTrimFromFunction()
Resolve the function definition which should be used to trim both leading and trailing spaces.
|
protected abstract SQLFunction |
resolveBothSpaceTrimFunction()
Resolve the function definition which should be used to trim both leading and trailing spaces.
|
protected abstract SQLFunction |
resolveBothTrimFunction()
Resolve the function definition which should be used to trim the specified character from both the
beginning (leading) and end (trailing) of the trim source.
|
protected abstract SQLFunction |
resolveLeadingSpaceTrimFunction()
Resolve the function definition which should be used to trim leading spaces.
|
protected abstract SQLFunction |
resolveLeadingTrimFunction()
Resolve the function definition which should be used to trim the specified character from the
beginning (leading) of the trim source.
|
protected abstract SQLFunction |
resolveTrailingSpaceTrimFunction()
Resolve the function definition which should be used to trim trailing spaces.
|
protected abstract SQLFunction |
resolveTrailingTrimFunction()
Resolve the function definition which should be used to trim the specified character from the
end (trailing) of the trim source.
|
public final boolean hasArguments()
SQLFunction
hasArguments
in interface SQLFunction
public final boolean hasParenthesesIfNoArguments()
SQLFunction
hasParenthesesIfNoArguments
in interface SQLFunction
public final Type getReturnType(Type argumentType, Mapping mapping) throws QueryException
SQLFunction
SQLFunction.render(org.hibernate.type.Type, java.util.List, org.hibernate.engine.spi.SessionFactoryImplementor)
getReturnType
in interface SQLFunction
argumentType
- The type of the first argumentmapping
- The mapping source.QueryException
- Indicates an issue resolving the return type.public final String render(Type argumentType, List args, SessionFactoryImplementor factory) throws QueryException
SQLFunction
SQLFunction.getReturnType(org.hibernate.type.Type, org.hibernate.engine.spi.Mapping)
render
in interface SQLFunction
argumentType
- The type of the first argumentargs
- The function argumentsfactory
- The SessionFactoryQueryException
- Indicates a problem rendering the
function call.protected abstract SQLFunction resolveBothSpaceTrimFunction()
protected abstract SQLFunction resolveBothSpaceTrimFromFunction()
SQLFunction.render(org.hibernate.type.Type, java.util.List, org.hibernate.engine.spi.SessionFactoryImplementor)
processing.protected abstract SQLFunction resolveLeadingSpaceTrimFunction()
protected abstract SQLFunction resolveTrailingSpaceTrimFunction()
protected abstract SQLFunction resolveBothTrimFunction()
protected abstract SQLFunction resolveLeadingTrimFunction()
protected abstract SQLFunction resolveTrailingTrimFunction()
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