# Interface QueryTreeVisitor<T> (5.0.3)

    public interface QueryTreeVisitor<T>

Defines an interface of the visitor invoked by the walker.

| ## Type Parameter ||
|---|---|
| **Name** | **Description** |
| `T` |   |

## Methods

### visitConjunction(Tree node, T context)

    public abstract void visitConjunction(Tree node, T context)

Visits a node that represents a conjunction (logical and) of conditions.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitContains(Tree node, T context)

    public abstract void visitContains(Tree node, T context)

Visits a node that represents that a field must contain a value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitDisjunction(Tree node, T context)

    public abstract void visitDisjunction(Tree node, T context)

Visits a node that represents a disjunction (logical or) of conditions.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitEqual(Tree node, T context)

    public abstract void visitEqual(Tree node, T context)

Visits a node that represents that a field value must be greater than
or equal to some specified value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitFunction(Tree node, T context)

    public abstract void visitFunction(Tree node, T context)

Visits a node that represents a function computed on some arguments.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitFuzzy(Tree node, T context)

    public abstract void visitFuzzy(Tree node, T context)

Visits a node that represents a text field that is subject to query rewrite.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitGlobal(Tree node, T context)

    public abstract void visitGlobal(Tree node, T context)

Visits a node that represents a global field.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitGreaterOrEqual(Tree node, T context)

    public abstract void visitGreaterOrEqual(Tree node, T context)

Visits a node that represents an inequality between a field and value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitGreaterThan(Tree node, T context)

    public abstract void visitGreaterThan(Tree node, T context)

Visits a node that represents that a field value must be greater than some
specified value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitLessOrEqual(Tree node, T context)

    public abstract void visitLessOrEqual(Tree node, T context)

Visits a node that represents that a field value must be less than or
equal to some specified value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitLessThan(Tree node, T context)

    public abstract void visitLessThan(Tree node, T context)

Visits a node that represents that a field value must be less than some
specified value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitLiteral(Tree node, T context)

    public abstract void visitLiteral(Tree node, T context)

Visits a node that represents a text field that must not be altered.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitNegation(Tree node, T context)

    public abstract void visitNegation(Tree node, T context)

Visits a node that represents a negation of conditions.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitOther(Tree node, T context)

    public abstract void visitOther(Tree node, T context)

Catch-all method for future type of query nodes.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitSequence(Tree node, T context)

    public abstract void visitSequence(Tree node, T context)

Visits a node that represents a sequence of expressions.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |

### visitValue(Tree node, T context)

    public abstract void visitValue(Tree node, T context)

Visits a node that represents a constant value.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `node` | `org.antlr.runtime.tree.Tree` |
| `context` | `T` |