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## org.modeshape.graph.query.validate
Class Validator

    java.lang.Object
      org.modeshape.graph.query.model.Visitors.AbstractVisitor
          org.modeshape.graph.query.validate.Validator

All Implemented Interfaces:
  Visitor

    public class Validator

extends Visitors.AbstractVisitor

A `Visitor` implementation that validates a query's used of a `Schemata` and records any problems as errors.

Constructor Summary
`Validator(QueryContext context, Map<SelectorName,Schemata.Table> selectorsByName)`

Method Summary
`protected Schemata.Table` | `tableWithNameOrAlias(SelectorName tableName)`
`protected Schemata.Table` | `verify(SelectorName selectorName)`
`protected Schemata.Column` | `verify(SelectorName selectorName, String propertyName, boolean columnIsRequired)`
`protected void` | `verifyArithmeticOperand(DynamicOperand operand)`
`protected void` | `verifyOperator(DynamicOperand operand, Operator op)`
`protected void` | `verifyOperator(SelectorName selectorName, String propertyName, Operator op)`
`protected void` | `verifyOrdering(DynamicOperand operand)`
`protected void` | `verifyOrdering(SelectorName selectorName, String propertyName)`
`protected Schemata.Table` | `verifyTable(SelectorName tableName)`
`void` | `visit(AllNodes obj)`
`void` | `visit(ArithmeticOperand obj)`
`void` | `visit(ChildNode obj)`
`void` | `visit(ChildNodeJoinCondition obj)`
`void` | `visit(Column obj)`
`void` | `visit(Comparison obj)`
`void` | `visit(DescendantNode obj)`
`void` | `visit(DescendantNodeJoinCondition obj)`
`void` | `visit(EquiJoinCondition obj)`
`void` | `visit(FullTextSearch obj)`
`void` | `visit(FullTextSearchScore obj)`
`void` | `visit(Length obj)`
`void` | `visit(LowerCase obj)`
`void` | `visit(NamedSelector obj)`
`void` | `visit(NodeDepth obj)`
`void` | `visit(NodeLocalName obj)`
`void` | `visit(NodeName obj)`
`void` | `visit(NodePath obj)`
`void` | `visit(Ordering obj)`
`void` | `visit(PropertyExistence obj)`
`void` | `visit(PropertyValue obj)`
`void` | `visit(Query obj)`
`void` | `visit(ReferenceValue obj)`
`void` | `visit(SameNode obj)`
`void` | `visit(SameNodeJoinCondition obj)`
`void` | `visit(Subquery subquery)`

Methods inherited from class org.modeshape.graph.query.model.Visitors.AbstractVisitor
`visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Validator

    public Validator(QueryContext context,
                     Map<SelectorName,Schemata.Table> selectorsByName)

Parameters:
  `context` - the query context
  `selectorsByName` - the `tables` by their name or alias, as defined by the selectors

Method Detail

### visit

    public void visit(AllNodes obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.AllNodes)`

### visit

    public void visit(ArithmeticOperand obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.ArithmeticOperand)`

### verifyArithmeticOperand

    protected void verifyArithmeticOperand(DynamicOperand operand)

### visit

    public void visit(ChildNode obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.ChildNode)`

### visit

    public void visit(ChildNodeJoinCondition obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.ChildNodeJoinCondition)`

### visit

    public void visit(Column obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.Column)`

### visit

    public void visit(Comparison obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.Comparison)`

### visit

    public void visit(DescendantNode obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.DescendantNode)`

### visit

    public void visit(DescendantNodeJoinCondition obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.DescendantNodeJoinCondition)`

### visit

    public void visit(EquiJoinCondition obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.EquiJoinCondition)`

### visit

    public void visit(FullTextSearch obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.FullTextSearch)`

### visit

    public void visit(FullTextSearchScore obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.FullTextSearchScore)`

### visit

    public void visit(Length obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.Length)`

### visit

    public void visit(LowerCase obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.LowerCase)`

### visit

    public void visit(NamedSelector obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.NamedSelector)`

### visit

    public void visit(NodeDepth obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.NodeDepth)`

### visit

    public void visit(NodeLocalName obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.NodeLocalName)`

### visit

    public void visit(NodeName obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.NodeName)`

### visit

    public void visit(NodePath obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.NodePath)`

### visit

    public void visit(Ordering obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.Ordering)`

### visit

    public void visit(PropertyExistence obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.PropertyExistence)`

### visit

    public void visit(PropertyValue obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.PropertyValue)`

### visit

    public void visit(ReferenceValue obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.ReferenceValue)`

### visit

    public void visit(Query obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.Query)`

### visit

    public void visit(Subquery subquery)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.Subquery)`

### visit

    public void visit(SameNode obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.SameNode)`

### visit

    public void visit(SameNodeJoinCondition obj)

  Specified by:
    `visit` in interface `Visitor`
  Overrides:
    `visit` in class `Visitors.AbstractVisitor`
  See Also:
    `Visitors.AbstractVisitor.visit(org.modeshape.graph.query.model.SameNodeJoinCondition)`

### verifyOrdering

    protected void verifyOrdering(DynamicOperand operand)

### verifyOrdering

    protected void verifyOrdering(SelectorName selectorName,
                                  String propertyName)

### verifyOperator

    protected void verifyOperator(DynamicOperand operand,
                                  Operator op)

### verifyOperator

    protected void verifyOperator(SelectorName selectorName,
                                  String propertyName,
                                  Operator op)

### tableWithNameOrAlias

    protected Schemata.Table tableWithNameOrAlias(SelectorName tableName)

### verify

    protected Schemata.Table verify(SelectorName selectorName)

### verifyTable

    protected Schemata.Table verifyTable(SelectorName tableName)

### verify

    protected Schemata.Column verify(SelectorName selectorName,
                                     String propertyName,
                                     boolean columnIsRequired)

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