Interface ColumnSchema
public interface ColumnSchema
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Method Summary
Modifier and TypeMethodDescriptionlongTotal number of columnsGet all columns metadata.intindexOfColumn(Column column) Retrieve column index based on column metadataindexOfColumnName(String columnName) Retrieve column index based on column name.
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Method Details
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getColumns
Get all columns metadata.- Returns:
- columns metadata
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indexOfColumnName
Retrieve column index based on column name.- Parameters:
columnName-- Returns:
- column index or empty if column is not found
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indexOfColumn
Retrieve column index based on column metadata- Parameters:
column- metadata- Returns:
- column index or empty if column is not found
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columnsCount
long columnsCount()Total number of columns- Returns:
- total number of columns
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