org.openrdf.sail.rdbms.algebra.base

Class SqlConstant<T>

java.lang.Object

org.openrdf.query.algebra.QueryModelNodeBase

org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase

org.openrdf.sail.rdbms.algebra.base.SqlConstant<T>

All Implemented Interfaces:

Serializable, Cloneable, QueryModelNode, SqlExpr

Direct Known Subclasses:

BooleanValue, DoubleValue, NumberValue, SqlNull, StringValue

public abstract class SqlConstant<T>
extends RdbmsQueryModelNodeBase
implements SqlExpr

A constant SQL value, like a varchar or number.

Author:

James Leigh

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SqlConstant()
SqlConstant(T value)

Method Summary

Modifier and Type	Method and Description
SqlConstant<T>	clone() Returns a (deep) clone of this query model node.
boolean	equals(Object obj) Returns true if this query model node and its children are recursively equal to o and its children.
String	getSignature() Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
T	getValue()
int	hashCode()
void	setValue(T value)

Methods inherited from class org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase

visit, visit

Methods inherited from class org.openrdf.query.algebra.QueryModelNodeBase

getParentNode, nullEquals, replaceChildNode, replaceNodeInList, replaceWith, setParentNode, toString, visitChildren

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.openrdf.query.algebra.QueryModelNode

getParentNode, replaceChildNode, replaceWith, setParentNode, toString, visit, visitChildren

Constructor Detail

SqlConstant

public SqlConstant()

SqlConstant

public SqlConstant(T value)

Method Detail

getValue

public T getValue()

setValue

public void setValue(T value)

getSignature

public String getSignature()

Description copied from class: QueryModelNodeBase

Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.

Specified by:

getSignature in interface QueryModelNode

Overrides:

getSignature in class QueryModelNodeBase

Returns:

The node's signature, e.g. SLICE (offset=10, limit=10).

clone

public SqlConstant<T> clone()

Description copied from interface: QueryModelNode

Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.

Specified by:

clone in interface QueryModelNode

Specified by:

clone in interface SqlExpr

Overrides:

clone in class QueryModelNodeBase

Returns:

A deep clone of this query model node.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Description copied from interface: QueryModelNode

Returns true if this query model node and its children are recursively equal to o and its children.

Specified by:

equals in interface QueryModelNode

Overrides:

equals in class Object