Top Description Constructors Methods
org.hibernate.hql.ast.tree

public abstract Class AbstractNullnessCheckNode

extends UnaryLogicOperatorNode
Class Inheritance
Known Direct Subclasses
org.hibernate.hql.ast.tree.IsNotNullLogicOperatorNode, org.hibernate.hql.ast.tree.IsNullLogicOperatorNode
Imports
antlr.collections.AST, org.hibernate.type.Type, org.hibernate.engine.SessionFactoryImplementor, org.hibernate.hql.antlr.HqlSqlTokenTypes, org.hibernate.util.StringHelper, org.hibernate.HibernateException
Base class for nodes dealing 'is null' and 'is not null' operators.

todo : a good deal of this is copied from BinaryLogicOperatorNode; look at consolidating these code fragments

Author
Steve Ebersole

Constructor Summary

AccessConstructor and Description
public
AbstractNullnessCheckNode()

Method Summary

Modifier and TypeMethod and Description
private static Type
extractDataType(Node operand)

private static String[]
extractMutationTexts(Node operand, int count)

protected abstract String

Returns:

The expansion connector text.
getExpansionConnectorText()

When (if) we need to expand a row value constructor, what is the text of the connector to use between the expansion fragments.

protected abstract int

Returns:

The expansion connector type.
getExpansionConnectorType()

When (if) we need to expand a row value constructor, what is the type of connector to use between the expansion fragments.

public void
initialize()

Overrides org.hibernate.hql.ast.tree.UnaryLogicOperatorNode.initialize.

Implements org.hibernate.hql.ast.tree.OperatorNode.initialize.

Called by the tree walker during hql-sql semantic analysis after the operator sub-tree is completely built.
private void
mutateRowValueConstructorSyntax(int operandColumnSpan)

Inherited from org.hibernate.hql.ast.tree.UnaryLogicOperatorNode:
getDataTypegetOperand

Constructor Detail

AbstractNullnessCheckNodeback to summary
public AbstractNullnessCheckNode()

Method Detail

extractDataTypeback to summary
private static Type extractDataType(Node operand)
extractMutationTextsback to summary
private static String[] extractMutationTexts(Node operand, int count)
getExpansionConnectorTextback to summary
protected abstract String getExpansionConnectorText()

When (if) we need to expand a row value constructor, what is the text of the connector to use between the expansion fragments.

Returns:String

The expansion connector text.

getExpansionConnectorTypeback to summary
protected abstract int getExpansionConnectorType()

When (if) we need to expand a row value constructor, what is the type of connector to use between the expansion fragments.

Returns:int

The expansion connector type.

initializeback to summary
public void initialize()

Overrides org.hibernate.hql.ast.tree.UnaryLogicOperatorNode.initialize.

Implements org.hibernate.hql.ast.tree.OperatorNode.initialize.

Doc from org.hibernate.hql.ast.tree.OperatorNode.initialize.

Called by the tree walker during hql-sql semantic analysis after the operator sub-tree is completely built.

mutateRowValueConstructorSyntaxback to summary
private void mutateRowValueConstructorSyntax(int operandColumnSpan)