Uses of Class
dev.frostlake.executor.expressions.CollationSpec

Packages that use CollationSpec

Package	Description
dev.frostlake.executor
dev.frostlake.executor.expressions
dev.frostlake.executor.operators
dev.frostlake.functions
dev.frostlake.functions.scalar.conditional
dev.frostlake.functions.scalar.string

Uses of CollationSpec in dev.frostlake.executor

Methods in dev.frostlake.executor that return CollationSpec

Modifier and Type	Method	Description
CollationSpec	ExpressionEvaluator.keyCollation(Expression expression)	The collation an ORDER BY, GROUP BY, DISTINCT, PARTITION BY or set-operation key compares under.
static CollationSpec[]	KeyCollations.resolve(List<String> keys, ExpressionEvaluator evaluator)	The collation each key compares under.

Methods in dev.frostlake.executor with parameters of type CollationSpec

Modifier and Type	Method	Description
static List<Row>	SetOperations.applyDistinct(List<Row> rows, CollationSpec[] collations)	Apply DISTINCT where some columns compare under a collation: values that differ only below the collation's strength are ONE row, and the row reports the smallest of them by raw text.

Uses of CollationSpec in dev.frostlake.executor.expressions

Methods in dev.frostlake.executor.expressions that return CollationSpec

Modifier and Type	Method	Description
static CollationSpec	CollationSpec.parse(String spec)	The rules spec names, refusing a specification live refuses.
CollationSpec	CollatedKey.rulesOf()	The collation this key compares under.
CollationSpec	ExpressionCollation.toRules()	The rules a comparison under this collation runs by, or null for a binary comparison.

Methods in dev.frostlake.executor.expressions with parameters of type CollationSpec

Modifier and Type	Method	Description
static Object	CollatedKey.of(Object value, CollationSpec rules)	The key for a value under a collation: the value itself when there is no collation, or when it is not text (a collation orders strings; everything else keeps its own order).

Uses of CollationSpec in dev.frostlake.executor.operators

Method parameters in dev.frostlake.executor.operators with type arguments of type CollationSpec

Modifier and Type	Method	Description
void	GroupByOperator.collateKeys(List<CollationSpec> collations)	The collation each group key compares under.

Uses of CollationSpec in dev.frostlake.functions

Methods in dev.frostlake.functions with parameters of type CollationSpec

Modifier and Type	Method	Description
static boolean	CollationMatching.containsUnder(CollationSpec rules, String haystack, String needle)	Whether haystack holds a substring the collation calls equal to needle.
static boolean	CollationMatching.endsWithUnder(CollationSpec rules, String haystack, String suffix)	Whether some suffix of haystack is equal to suffix under the collation.
static boolean	CollationMatching.equalUnder(CollationSpec rules, Object left, Object right)	Whether two values are equal under a collation, or by ordinary equality when there is none or either side is not text.
Object	BuiltInFunction.evaluate(List<Object> args, CollationSpec collation)	The same, for a call whose arguments settled on a collation.
static int[]	CollationMatching.findUnder(CollationSpec rules, String haystack, String needle, int from)	The first substring of haystack at or after from that the collation calls equal to needle.
static String	CollationMatching.replaceUnder(CollationSpec rules, String haystack, String needle, String replacement)	Every occurrence of needle in haystack replaced, matching under the collation.
static List<String>	CollationMatching.splitUnder(CollationSpec rules, String haystack, String separator)	haystack split on every occurrence of separator, matching under the collation.
static boolean	CollationMatching.startsWithUnder(CollationSpec rules, String haystack, String prefix)	Whether some prefix of haystack is equal to prefix under the collation.

Uses of CollationSpec in dev.frostlake.functions.scalar.conditional

Methods in dev.frostlake.functions.scalar.conditional with parameters of type CollationSpec

Modifier and Type	Method	Description
Object	Decode.evaluate(List<Object> args, CollationSpec collation)	Under a collation a search value matches what the collation calls equal to the subject.
Object	Greatest.evaluate(List<Object> args, CollationSpec collation)	Under a collation the arguments are ordered by its rules, so 'a' outranks 'B' where it should.
Object	GreatestIgnoreNulls.evaluate(List<Object> args, CollationSpec collation)	Under a collation the arguments are ordered by its rules, so 'a' outranks 'B' where it should.
Object	Least.evaluate(List<Object> args, CollationSpec collation)	Under a collation the arguments are ordered by its rules, so 'a' outranks 'B' where it should.
Object	LeastIgnoreNulls.evaluate(List<Object> args, CollationSpec collation)	Under a collation the arguments are ordered by its rules, so 'a' outranks 'B' where it should.
Object	NullIf.evaluate(List<Object> args, CollationSpec collation)	Under a collation the two are compared by its rules, so a case-blind pair answers NULL.

Uses of CollationSpec in dev.frostlake.functions.scalar.string

Methods in dev.frostlake.functions.scalar.string with parameters of type CollationSpec

Modifier and Type	Method	Description
Object	CharIndex.evaluate(List<Object> args, CollationSpec collation)	Under a collation the needle is found where the collation matches it, not byte for byte.
Object	Contains.evaluate(List<Object> args, CollationSpec collation)	Under a collation the needle is looked for as the collation matches it, not byte for byte.
Object	EndsWith.evaluate(List<Object> args, CollationSpec collation)	Under a collation the suffix is the one the collation matches, not the byte-for-byte one.
Object	Position.evaluate(List<Object> args, CollationSpec collation)	Under a collation the needle is found where the collation matches it, not byte for byte.
Object	Replace.evaluate(List<Object> args, CollationSpec collation)	Under a collation every substring the collation calls equal to the search text is replaced.
Object	Split.evaluate(List<Object> args, CollationSpec collation)	Under a collation the text splits on every separator the collation matches.
Object	SplitPart.evaluate(List<Object> args, CollationSpec collation)	Under a collation the text splits on every separator the collation matches.
Object	StartsWith.evaluate(List<Object> args, CollationSpec collation)	Under a collation the prefix is the one the collation matches, not the byte-for-byte one.