Leon Mika
f65c5778a9
Changed package name from github.com/lmika/audax to github.com/lmika/dynamo-browse
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
package queryexpr
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import (
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"github.com/aws/aws-sdk-go-v2/feature/dynamodb/expression"
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"github.com/lmika/dynamo-browse/internal/dynamo-browse/models"
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)
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// TO DELETE = operandFieldName() string
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type irAtom interface {
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// calcQueryForScan returns the condition builder for this atom to include in a scan
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calcQueryForScan(info *models.TableInfo) (expression.ConditionBuilder, error)
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}
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type queryableIRAtom interface {
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irAtom
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// canBeExecutedAsQuery returns true if the atom is capable of being executed as a query
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canBeExecutedAsQuery(qci *queryCalcInfo) bool
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// calcQueryForQuery returns a key condition builder for this atom to include in a query
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calcQueryForQuery() (expression.KeyConditionBuilder, error)
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}
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type oprIRAtom interface {
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calcOperand(info *models.TableInfo) expression.OperandBuilder
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}
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type nameIRAtom interface {
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oprIRAtom
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// keyName returns the name as key if it can be a DB key. Returns "" if this name cannot be a key
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keyName() string
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calcName(info *models.TableInfo) expression.NameBuilder
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}
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type valueIRAtom interface {
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oprIRAtom
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exprValue() exprValue
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}
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func canExecuteAsQuery(ir irAtom, qci *queryCalcInfo) bool {
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queryable, isQuearyable := ir.(queryableIRAtom)
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if !isQuearyable {
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return false
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}
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return queryable.canBeExecutedAsQuery(qci)
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}
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