MySQL Connector/J 9.2.0 · com.mysql.cj.result.DefaultColumnDefinition

Field Summary

Modifier and Type	Field and Description
private boolean	builtIndexMapping
private Map<String, Integer>	columnLabelToIndex Map column names (and all of their permutations) to column indices
private Map<String, Integer>	columnNameToIndex Map column names (and all of their permutations) to column indices
private Map<String, Integer>	columnToIndexCache The above map is a case-insensitive tree-map, it can be slow, this caches lookups into that map, because the other alternative is to create new object instances for every call to findColumn()....
protected Field[]	fields
private Map<String, Integer>	fullColumnNameToIndex Map of fully-specified column names to column indices

Constructor Summary

Access	Constructor and Description
public	DefaultColumnDefinition()
public	DefaultColumnDefinition(Field[] fields)

Method Summary

Modifier and Type	Method and Description
public void	buildIndexMapping() Implements com.mysql.cj.protocol.ColumnDefinition.buildIndexMapping. Builds a hash between column names and their indices for fast retrieval.
public void	exportTo(ColumnDefinition columnDefinition) Implements com.mysql.cj.protocol.ColumnDefinition.exportTo.
public int	findColumn(String columnName, boolean useColumnNamesInFindColumn, int indexBase) Implements com.mysql.cj.protocol.ColumnDefinition.findColumn.
public Map<String, Integer>	getColumnLabelToIndex() Implements com.mysql.cj.protocol.ColumnDefinition.getColumnLabelToIndex.
public Map<String, Integer>	getColumnNameToIndex() Implements com.mysql.cj.protocol.ColumnDefinition.getColumnNameToIndex.
public Map<String, Integer>	getColumnToIndexCache() Implements com.mysql.cj.protocol.ColumnDefinition.getColumnToIndexCache.
public Field[]	getFields() Implements com.mysql.cj.protocol.ColumnDefinition.getFields.
public Map<String, Integer>	getFullColumnNameToIndex() Implements com.mysql.cj.protocol.ColumnDefinition.getFullColumnNameToIndex.
public boolean	hasBuiltIndexMapping() Implements com.mysql.cj.protocol.ColumnDefinition.hasBuiltIndexMapping.
public boolean	Returns: true if this ColumnDefinition has large fields hasLargeFields() Implements com.mysql.cj.protocol.ColumnDefinition.hasLargeFields. Check if fields with type BLOB, MEDIUMBLOB, LONGBLOB, TEXT, MEDIUMTEXT, LONGTEXT, or VECTOR exist in this ColumnDefinition.
public void	initializeFrom(ColumnDefinition columnDefinition) Implements com.mysql.cj.protocol.ColumnDefinition.initializeFrom.
public void	setColumnLabelToIndex(Map<String, Integer> columnLabelToIndex) Implements com.mysql.cj.protocol.ColumnDefinition.setColumnLabelToIndex.
public void	setColumnNameToIndex(Map<String, Integer> colNameToIndex) Implements com.mysql.cj.protocol.ColumnDefinition.setColumnNameToIndex.
public void	setColumnToIndexCache(Map<String, Integer> columnToIndexCache) Implements com.mysql.cj.protocol.ColumnDefinition.setColumnToIndexCache.
public void	setFields(Field[] fields) Implements com.mysql.cj.protocol.ColumnDefinition.setFields.
public void	setFullColumnNameToIndex(Map<String, Integer> fullColNameToIndex) Implements com.mysql.cj.protocol.ColumnDefinition.setFullColumnNameToIndex.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

builtIndexMapping	back to summary
private boolean builtIndexMapping

columnLabelToIndex	back to summary
private Map<String, Integer> columnLabelToIndex Map column names (and all of their permutations) to column indices

columnNameToIndex	back to summary
private Map<String, Integer> columnNameToIndex Map column names (and all of their permutations) to column indices

columnToIndexCache	back to summary
private Map<String, Integer> columnToIndexCache The above map is a case-insensitive tree-map, it can be slow, this caches lookups into that map, because the other alternative is to create new object instances for every call to findColumn()....

fields	back to summary
protected Field[] fields

fullColumnNameToIndex	back to summary
private Map<String, Integer> fullColumnNameToIndex Map of fully-specified column names to column indices

Constructor Detail

DefaultColumnDefinition	back to summary
public DefaultColumnDefinition()

DefaultColumnDefinition	back to summary
public DefaultColumnDefinition(Field[] fields)

Method Detail

buildIndexMapping	back to summary
public void buildIndexMapping() Implements com.mysql.cj.protocol.ColumnDefinition.buildIndexMapping. Doc from com.mysql.cj.protocol.ColumnDefinition.buildIndexMapping. Builds a hash between column names and their indices for fast retrieval. This is done lazily to support findColumn() and get*(String), as it can be more expensive than just retrieving result set values by ordinal index. Annotations @Override

buildIndexMapping

back to summary

public void buildIndexMapping()

Implements com.mysql.cj.protocol.ColumnDefinition.buildIndexMapping.

Doc from com.mysql.cj.protocol.ColumnDefinition.buildIndexMapping.

Builds a hash between column names and their indices for fast retrieval. This is done lazily to support findColumn() and get*(String), as it can be more expensive than just retrieving result set values by ordinal index.

Annotations

@Override

exportTo	back to summary
public void exportTo(ColumnDefinition columnDefinition) Implements com.mysql.cj.protocol.ColumnDefinition.exportTo. Annotations @Override

exportTo

back to summary

public void exportTo(ColumnDefinition columnDefinition)

Implements com.mysql.cj.protocol.ColumnDefinition.exportTo.

Annotations

@Override

findColumn	back to summary
public int findColumn(String columnName, boolean useColumnNamesInFindColumn, int indexBase) Implements com.mysql.cj.protocol.ColumnDefinition.findColumn. Annotations @Override

findColumn

back to summary

public int findColumn(String columnName, boolean useColumnNamesInFindColumn, int indexBase)

Implements com.mysql.cj.protocol.ColumnDefinition.findColumn.

Annotations

@Override

getColumnLabelToIndex	back to summary
public Map<String, Integer> getColumnLabelToIndex() Implements com.mysql.cj.protocol.ColumnDefinition.getColumnLabelToIndex. Annotations @Override

getColumnLabelToIndex

back to summary

public Map<String, Integer> getColumnLabelToIndex()

Implements com.mysql.cj.protocol.ColumnDefinition.getColumnLabelToIndex.

Annotations

@Override

getColumnNameToIndex	back to summary
public Map<String, Integer> getColumnNameToIndex() Implements com.mysql.cj.protocol.ColumnDefinition.getColumnNameToIndex. Annotations @Override

getColumnNameToIndex

back to summary

public Map<String, Integer> getColumnNameToIndex()

Implements com.mysql.cj.protocol.ColumnDefinition.getColumnNameToIndex.

Annotations

@Override

getColumnToIndexCache	back to summary
public Map<String, Integer> getColumnToIndexCache() Implements com.mysql.cj.protocol.ColumnDefinition.getColumnToIndexCache. Annotations @Override

getColumnToIndexCache

back to summary

public Map<String, Integer> getColumnToIndexCache()

Implements com.mysql.cj.protocol.ColumnDefinition.getColumnToIndexCache.

Annotations

@Override

getFields	back to summary
public Field[] getFields() Implements com.mysql.cj.protocol.ColumnDefinition.getFields. Annotations @Override

getFields

back to summary

public Field[] getFields()

Implements com.mysql.cj.protocol.ColumnDefinition.getFields.

Annotations

@Override

getFullColumnNameToIndex	back to summary
public Map<String, Integer> getFullColumnNameToIndex() Implements com.mysql.cj.protocol.ColumnDefinition.getFullColumnNameToIndex. Annotations @Override

getFullColumnNameToIndex

back to summary

public Map<String, Integer> getFullColumnNameToIndex()

Implements com.mysql.cj.protocol.ColumnDefinition.getFullColumnNameToIndex.

Annotations

@Override

hasBuiltIndexMapping	back to summary
public boolean hasBuiltIndexMapping() Implements com.mysql.cj.protocol.ColumnDefinition.hasBuiltIndexMapping. Annotations @Override

hasBuiltIndexMapping

back to summary

public boolean hasBuiltIndexMapping()

Implements com.mysql.cj.protocol.ColumnDefinition.hasBuiltIndexMapping.

Annotations

@Override

hasLargeFields	back to summary
public boolean hasLargeFields() Implements com.mysql.cj.protocol.ColumnDefinition.hasLargeFields. Check if fields with type BLOB, MEDIUMBLOB, LONGBLOB, TEXT, MEDIUMTEXT, LONGTEXT, or VECTOR exist in this ColumnDefinition. This check is used for making a decision about whether we want to force a buffer row (better for rows with large fields). Returns:boolean true if this ColumnDefinition has large fields Annotations @Override

hasLargeFields

back to summary

public boolean hasLargeFields()

Implements com.mysql.cj.protocol.ColumnDefinition.hasLargeFields.

Check if fields with type BLOB, MEDIUMBLOB, LONGBLOB, TEXT, MEDIUMTEXT, LONGTEXT, or VECTOR exist in this ColumnDefinition. This check is used for making a decision about whether we want to force a buffer row (better for rows with large fields).

Returns:boolean

true if this ColumnDefinition has large fields

Annotations

@Override

initializeFrom	back to summary
public void initializeFrom(ColumnDefinition columnDefinition) Implements com.mysql.cj.protocol.ColumnDefinition.initializeFrom. Annotations @Override

initializeFrom

back to summary

public void initializeFrom(ColumnDefinition columnDefinition)

Implements com.mysql.cj.protocol.ColumnDefinition.initializeFrom.

Annotations

@Override

setColumnLabelToIndex	back to summary
public void setColumnLabelToIndex(Map<String, Integer> columnLabelToIndex) Implements com.mysql.cj.protocol.ColumnDefinition.setColumnLabelToIndex. Annotations @Override

setColumnLabelToIndex

back to summary

public void setColumnLabelToIndex(Map<String, Integer> columnLabelToIndex)

Implements com.mysql.cj.protocol.ColumnDefinition.setColumnLabelToIndex.

Annotations

@Override

setColumnNameToIndex	back to summary
public void setColumnNameToIndex(Map<String, Integer> colNameToIndex) Implements com.mysql.cj.protocol.ColumnDefinition.setColumnNameToIndex. Annotations @Override

setColumnNameToIndex

back to summary

public void setColumnNameToIndex(Map<String, Integer> colNameToIndex)

Implements com.mysql.cj.protocol.ColumnDefinition.setColumnNameToIndex.

Annotations

@Override

setColumnToIndexCache	back to summary
public void setColumnToIndexCache(Map<String, Integer> columnToIndexCache) Implements com.mysql.cj.protocol.ColumnDefinition.setColumnToIndexCache. Annotations @Override

setColumnToIndexCache

back to summary

public void setColumnToIndexCache(Map<String, Integer> columnToIndexCache)

Implements com.mysql.cj.protocol.ColumnDefinition.setColumnToIndexCache.

Annotations

@Override

setFields	back to summary
public void setFields(Field[] fields) Implements com.mysql.cj.protocol.ColumnDefinition.setFields. Annotations @Override

setFields

back to summary

public void setFields(Field[] fields)

Implements com.mysql.cj.protocol.ColumnDefinition.setFields.

Annotations

@Override

setFullColumnNameToIndex	back to summary
public void setFullColumnNameToIndex(Map<String, Integer> fullColNameToIndex) Implements com.mysql.cj.protocol.ColumnDefinition.setFullColumnNameToIndex. Annotations @Override

setFullColumnNameToIndex

back to summary

public void setFullColumnNameToIndex(Map<String, Integer> fullColNameToIndex)

Implements com.mysql.cj.protocol.ColumnDefinition.setFullColumnNameToIndex.

Annotations

@Override

public Class DefaultColumnDefinition

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail