Top Description Fields Constructors Methods
org.hibernate.sql.ast.tree.expression

public Class ColumnReference

extends Object
implements Expression, Assignable
Class Inheritance
All Implemented Interfaces
org.hibernate.sql.ast.tree.update.Assignable, org.hibernate.sql.ast.tree.expression.Expression, org.hibernate.sql.ast.spi.SqlSelectionProducer, org.hibernate.sql.ast.tree.SqlAstNode
Imports
java.util.Collections, .List, .Locale, .Objects, java.util.function.Consumer, org.hibernate.internal.util.StringHelper, org.hibernate.metamodel.mapping.JdbcMapping, .SelectableMapping, .SelectablePath, org.hibernate.sql.ast.SqlAstWalker, org.hibernate.sql.ast.spi.SqlAppender, .StringBuilderSqlAppender, org.hibernate.sql.ast.tree.from.TableReference, org.hibernate.sql.ast.tree.update.Assignable
Models a reference to a Column in a SQL AST
Authors
Steve Ebersole, Nathan Xu

Field Summary

Modifier and TypeField and Description
private final String
columnExpression

private final boolean
isFormula

private final JdbcMapping
jdbcMapping

private final String
qualifier

private final String
readExpression

private final SelectablePath
selectablePath

Constructor Summary

AccessConstructor and Description
public
ColumnReference(TableReference tableReference, SelectableMapping selectableMapping)

public
ColumnReference(TableReference tableReference, String mapping, JdbcMapping jdbcMapping)

public
ColumnReference(String qualifier, SelectableMapping selectableMapping)

public
ColumnReference(String qualifier, SelectableMapping selectableMapping, JdbcMapping jdbcMapping)

public
ColumnReference(TableReference tableReference, String columnExpression, boolean isFormula, String customReadExpression, JdbcMapping jdbcMapping)

public
ColumnReference(String qualifier, String columnExpression, boolean isFormula, String customReadExpression, JdbcMapping jdbcMapping)

public
ColumnReference(String qualifier, String columnExpression, SelectablePath selectablePath, boolean isFormula, String customReadExpression, JdbcMapping jdbcMapping)

Method Summary

Modifier and TypeMethod and Description
public void
accept(SqlAstWalker interpreter)

Implements org.hibernate.sql.ast.tree.SqlAstNode.accept.

public void
appendColumnForWrite(SqlAppender appender)

public void
appendColumnForWrite(SqlAppender appender, String qualifier)

public void
appendReadExpression(SqlAppender appender)

public void
appendReadExpression(String qualifier, Consumer<String> appender)

public void
appendReadExpression(SqlAppender appender, String qualifier)

public boolean
equals(Object
the reference object with which to compare.
o)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.
public String
getColumnExpression()

public ColumnReference
getColumnReference()

Overrides default org.hibernate.sql.ast.tree.expression.Expression.getColumnReference.

public List<ColumnReference>
getColumnReferences()

Implements org.hibernate.sql.ast.tree.update.Assignable.getColumnReferences.

public String
getExpressionText()

public JdbcMapping
getExpressionType()

Implements org.hibernate.sql.ast.tree.expression.Expression.getExpressionType.

The type for this expression
public JdbcMapping
getJdbcMapping()

public String
getQualifier()

public String
getSelectableName()

public SelectablePath
getSelectablePath()

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for the object.
public boolean
isColumnExpressionFormula()

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.
public void
visitColumnReferences(Consumer<ColumnReference> columnReferenceConsumer)

Overrides default org.hibernate.sql.ast.tree.update.Assignable.visitColumnReferences.

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

columnExpressionback to summary
private final String columnExpression
isFormulaback to summary
private final boolean isFormula
jdbcMappingback to summary
private final JdbcMapping jdbcMapping
qualifierback to summary
private final String qualifier
readExpressionback to summary
private final String readExpression
selectablePathback to summary
private final SelectablePath selectablePath

Constructor Detail

ColumnReferenceback to summary
public ColumnReference(TableReference tableReference, SelectableMapping selectableMapping)
ColumnReferenceback to summary
public ColumnReference(TableReference tableReference, String mapping, JdbcMapping jdbcMapping)
ColumnReferenceback to summary
public ColumnReference(String qualifier, SelectableMapping selectableMapping)
ColumnReferenceback to summary
public ColumnReference(String qualifier, SelectableMapping selectableMapping, JdbcMapping jdbcMapping)
ColumnReferenceback to summary
public ColumnReference(TableReference tableReference, String columnExpression, boolean isFormula, String customReadExpression, JdbcMapping jdbcMapping)
ColumnReferenceback to summary
public ColumnReference(String qualifier, String columnExpression, boolean isFormula, String customReadExpression, JdbcMapping jdbcMapping)
ColumnReferenceback to summary
public ColumnReference(String qualifier, String columnExpression, SelectablePath selectablePath, boolean isFormula, String customReadExpression, JdbcMapping jdbcMapping)

Method Detail

acceptback to summary
public void accept(SqlAstWalker interpreter)

Implements org.hibernate.sql.ast.tree.SqlAstNode.accept.

Annotations
@Override
appendColumnForWriteback to summary
public void appendColumnForWrite(SqlAppender appender)
appendColumnForWriteback to summary
public void appendColumnForWrite(SqlAppender appender, String qualifier)
appendReadExpressionback to summary
public void appendReadExpression(SqlAppender appender)
appendReadExpressionback to summary
public void appendReadExpression(String qualifier, Consumer<String> appender)
appendReadExpressionback to summary
public void appendReadExpression(SqlAppender appender, String qualifier)
equalsback to summary
public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations
@Override
getColumnExpressionback to summary
public String getColumnExpression()
getColumnReferenceback to summary
public ColumnReference getColumnReference()

Overrides default org.hibernate.sql.ast.tree.expression.Expression.getColumnReference.

Annotations
@Override
getColumnReferencesback to summary
public List<ColumnReference> getColumnReferences()

Implements org.hibernate.sql.ast.tree.update.Assignable.getColumnReferences.

Annotations
@Override
getExpressionTextback to summary
public String getExpressionText()
getExpressionTypeback to summary
public JdbcMapping getExpressionType()

Implements org.hibernate.sql.ast.tree.expression.Expression.getExpressionType.

Doc from org.hibernate.sql.ast.tree.expression.Expression.getExpressionType.

The type for this expression

Annotations
@Override
getJdbcMappingback to summary
public JdbcMapping getJdbcMapping()
getQualifierback to summary
public String getQualifier()
getSelectableNameback to summary
public String getSelectableName()
getSelectablePathback to summary
public SelectablePath getSelectablePath()
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object.

Annotations
@Override
isColumnExpressionFormulaback to summary
public boolean isColumnExpressionFormula()
toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations
@Override
visitColumnReferencesback to summary
public void visitColumnReferences(Consumer<ColumnReference> columnReferenceConsumer)

Overrides default org.hibernate.sql.ast.tree.update.Assignable.visitColumnReferences.

Annotations
@Override