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t

scales.xml.parser.strategies

MemoryOptimisationStrategy

trait MemoryOptimisationStrategy[Token <: OptimisationToken] extends AnyRef

Memory usage in DOMs is often dominated by repeated elements. Xerces and co use string tables to optimise memory usage, with DTM a key example.

Performing lookups is expensive so the strategies can have selective levels of lookup. Developers may therefore choose appropriate levels that best fit their trade-off between space and time.

There will, of course, be temporary garbage created for such a scheme but it should pay off for larger messages.

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Known Subclasses
ElemMemoryOptimisation, ElemOptimisationT, ElemQNameOptimisationT, FullMemoryOptimisationT, HighMemoryOptimisation, NoOptimisation, PathOptimisationStrategy, QNameElemTreeOptimisation, QNameMemoryOptimisation, QNameOptimisationT, QNameTreeOptimisation, TextNodeJoiner, TreeOptimisation
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Abstract Value Members

  1. abstract def createToken(implicit ver: XmlVersion, fromParser: FromParser): Token

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def attribute(qname: xml.AttributeQName, value: String, token: Token): Attribute

    It is expected that certain attributes have fixed values, ie.

    It is expected that certain attributes have fixed values, ie. booleans or based on schema enums etc, this function allows such optimisations.

    The qname will have been obtained via a call to either noNamespaceQName, unprefixedQName or prefixedQName, so any optimisations provided by them can be leveraged.

  6. def clone(): AnyRef
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    protected[lang]
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    @throws( ... ) @native()
  7. def elem(name: QName, attributes: xml.Attributes, namespaces: Map[String, String], token: Token): Elem

    For files without large (and varied) attribute counts per repeated element it may represent significant space savings to optimise against the entire Elem itself.

    For files without large (and varied) attribute counts per repeated element it may represent significant space savings to optimise against the entire Elem itself.

    The Elements QName is garaunteed to be the last QName evaluated via the QName functions (i.e. Attributes are done first then the Elems QName)

  8. final def eq(arg0: AnyRef): Boolean
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  9. def equals(arg0: Any): Boolean
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  10. def finalize(): Unit
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  11. final def getClass(): Class[_]
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  12. def hashCode(): Int
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  13. final def isInstanceOf[T0]: Boolean
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  14. final def ne(arg0: AnyRef): Boolean
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  15. def noNamespaceQName(local: String, token: Token): NoNamespaceQName
  16. final def notify(): Unit
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  17. final def notifyAll(): Unit
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    @native()
  18. def prefixedQName(local: String, uri: String, prefix: String, token: Token): PrefixedQName
  19. final def synchronized[T0](arg0: ⇒ T0): T0
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  20. def toString(): String
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  21. def unprefixedQName(local: String, uri: String, token: Token): UnprefixedQName
  22. final def wait(): Unit
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  23. final def wait(arg0: Long, arg1: Int): Unit
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  24. final def wait(arg0: Long): Unit
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