Package com.mckoi.database.interpret
Class ColumnDef
- java.lang.Object
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- com.mckoi.database.interpret.ColumnDef
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- All Implemented Interfaces:
StatementTreeObject
,java.io.Serializable
,java.lang.Cloneable
public final class ColumnDef extends java.lang.Object implements java.io.Serializable, StatementTreeObject, java.lang.Cloneable
Represents a column definition (description).- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description (package private) Expression
default_expression
(package private) java.lang.String
index_str
(package private) java.lang.String
name
private boolean
not_null
(package private) Expression
original_default_expression
private boolean
primary_key
(package private) static long
serialVersionUID
(package private) TType
type
private boolean
unique
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Constructor Summary
Constructors Constructor Description ColumnDef()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addConstraint(java.lang.String constraint)
Adds a constraint to this column.java.lang.Object
clone()
Performs a DEEP clone of this object if it is mutable, or a deep clone of its mutable members.boolean
isNotNull()
Returns true if this column has the not null constraint set for it.boolean
isPrimaryKey()
Returns true if this column has a primary key constraint set on it.boolean
isUnique()
Returns true if this column has the unique constraint set for it.void
prepareExpressions(ExpressionPreparer preparer)
Prepares all expressions in this statement tree object by passing the ExpressionPreparer object to the 'prepare' method of the expression.void
setDataType(TType type)
Sets the type of data of this column.void
setDefaultExpression(Expression exp)
Sets the default expression (this is used to make a new constraint).void
setIndex(Token t)
Sets the indexing.void
setName(java.lang.String name)
Sets the name of the column.
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Field Detail
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serialVersionUID
static final long serialVersionUID
- See Also:
- Constant Field Values
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name
java.lang.String name
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type
TType type
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index_str
java.lang.String index_str
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default_expression
Expression default_expression
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original_default_expression
Expression original_default_expression
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not_null
private boolean not_null
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primary_key
private boolean primary_key
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unique
private boolean unique
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Method Detail
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isPrimaryKey
public boolean isPrimaryKey()
Returns true if this column has a primary key constraint set on it.
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isUnique
public boolean isUnique()
Returns true if this column has the unique constraint set for it.
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isNotNull
public boolean isNotNull()
Returns true if this column has the not null constraint set for it.
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setName
public void setName(java.lang.String name)
Sets the name of the column.
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addConstraint
public void addConstraint(java.lang.String constraint)
Adds a constraint to this column.
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setDataType
public void setDataType(TType type)
Sets the type of data of this column.
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setIndex
public void setIndex(Token t) throws ParseException
Sets the indexing.- Throws:
ParseException
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setDefaultExpression
public void setDefaultExpression(Expression exp)
Sets the default expression (this is used to make a new constraint).
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prepareExpressions
public void prepareExpressions(ExpressionPreparer preparer) throws DatabaseException
Description copied from interface:StatementTreeObject
Prepares all expressions in this statement tree object by passing the ExpressionPreparer object to the 'prepare' method of the expression.- Specified by:
prepareExpressions
in interfaceStatementTreeObject
- Throws:
DatabaseException
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clone
public java.lang.Object clone() throws java.lang.CloneNotSupportedException
Description copied from interface:StatementTreeObject
Performs a DEEP clone of this object if it is mutable, or a deep clone of its mutable members. If the object is immutable then it may return 'this'.- Specified by:
clone
in interfaceStatementTreeObject
- Overrides:
clone
in classjava.lang.Object
- Throws:
java.lang.CloneNotSupportedException
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