Package de.aristaflow.adept2.model.logmanagement

Class Schema

java.lang.Object

de.aristaflow.adept2.model.logmanagement.Schema

All Implemented Interfaces:

Serializable

public class Schema
extends Object
implements Serializable

A Schema defines an ordered set of columns and is used in the log manager to describe the structure of logs complex columns and Log.read(de.aristaflow.adept2.base.sessionmanagement.SessionToken, String, String, int, String...)

Author:

Patrick Schmidt

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Schema(Column... columns)	Constructs a new Schema with the specified columns.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
Column	getColumn(int index)	Returns the column at the specified index.
Column	getColumn(String columnName)	Returns the column with the specified name or null if no such column exists.
int	getColumnCount()	Returns the number of columns in this schema.
List<Column>	getColumnRecursively(String columnName)	Returns the column with the specified name recursively or the empty list if no such column exists.
Column[]	getColumns()	Returns all columns of this schema.
int	hashCode()
int	indexOfColumn(String columnName)	Returns the index of the column with the specified name or -1 if no such column exists.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Schema

public Schema(Column... columns)

Constructs a new Schema with the specified columns.

Parameters:

columns - the columns of this schema

Method Detail

getColumnCount

public int getColumnCount()

Returns the number of columns in this schema.

Returns:

the number of columns in this schema

getColumn

public Column getColumn(int index)

Returns the column at the specified index.

Parameters:

index - the desired index

Returns:

the column at the specified index

indexOfColumn

public int indexOfColumn(String columnName)

Returns the index of the column with the specified name or -1 if no such column exists.

Parameters:

columnName - the column name being looked for

Returns:

the index of the column with the specified name or -1 if no such column exists

getColumn

public Column getColumn(String columnName)

Returns the column with the specified name or null if no such column exists.

Parameters:

columnName - the column name being looked for

Returns:

the column with the specified name

getColumnRecursively

public List<Column> getColumnRecursively(String columnName)

Returns the column with the specified name recursively or the empty list if no such column exists. Note, that a breadth-first algorithm is applied. If the same column name is re-used in a sub-schema, the method will always return the path to the parent schema and not to the path to a sub-schema.

Parameters:

columnName - the column name being looked for

Returns:

The column with the specified name and the way through the schema. This will be the empty list if no column of the designated name is found.

getColumns

public Column[] getColumns()

Returns all columns of this schema.

Returns:

all columns of this schema

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object