src/org/redkale/source/ColumnNode.java

@@ -0,0 +1,122 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.redkale.source;
+
+import java.io.Serializable;
+import static org.redkale.source.ColumnExpress.*;
+
+/**
+ * 作为ColumnValue的value字段值，用于复杂的字段表达式
+ *
+ * @author zhangjx
+ */
+public class ColumnNode implements Serializable {
+
+    private Serializable left;//类型只能是String、Number、ColumnNode
+
+    private ColumnExpress express; //不能是MOV
+
+    private Serializable right;//类型只能是String、Number、ColumnNode
+
+    public ColumnNode() {
+    }
+
+    public ColumnNode(Serializable left, ColumnExpress express, Serializable right) {
+        if (express == null || express == ColumnExpress.MOV) throw new IllegalArgumentException("express cannot be null or MOV");
+        this.left = left;
+        this.express = express;
+        this.right = right;
+    }
+
+    public static ColumnNode create(Serializable left, ColumnExpress express, Serializable right) {
+        return new ColumnNode(left, express, right);
+    }
+
+    public static ColumnNode inc(Serializable left, Serializable right) {
+        return new ColumnNode(left, INC, right);
+    }
+
+    public static ColumnNode mul(Serializable left, Serializable right) {
+        return new ColumnNode(left, MUL, right);
+    }
+
+    public static ColumnNode div(Serializable left, Serializable right) {
+        return new ColumnNode(left, DIV, right);
+    }
+
+    public static ColumnNode mod(Serializable left, Serializable right) {
+        return new ColumnNode(left, MOD, right);
+    }
+
+    public static ColumnNode and(Serializable left, Serializable right) {
+        return new ColumnNode(left, AND, right);
+    }
+
+    public static ColumnNode orr(Serializable left, Serializable right) {
+        return new ColumnNode(left, ORR, right);
+    }
+
+    public ColumnNode inc(Serializable right) {
+        return any(INC, right);
+    }
+
+    public ColumnNode mul(Serializable right) {
+        return any(MUL, right);
+    }
+
+    public ColumnNode div(Serializable right) {
+        return any(DIV, right);
+    }
+
+    public ColumnNode mod(Serializable right) {
+        return any(MOD, right);
+    }
+
+    public ColumnNode and(Serializable right) {
+        return any(AND, right);
+    }
+
+    public ColumnNode orr(Serializable right) {
+        return any(ORR, right);
+    }
+
+    protected ColumnNode any(ColumnExpress express, Serializable right) {
+        ColumnNode one = new ColumnNode(this.left, this.express, this.right);
+        this.left = one;
+        this.express = express;
+        this.right = right;
+        return this;
+    }
+
+    public Serializable getLeft() {
+        return left;
+    }
+
+    public void setLeft(Serializable left) {
+        this.left = left;
+    }
+
+    public ColumnExpress getExpress() {
+        return express;
+    }
+
+    public void setExpress(ColumnExpress express) {
+        this.express = express;
+    }
+
+    public Serializable getRight() {
+        return right;
+    }
+
+    public void setRight(Serializable right) {
+        this.right = right;
+    }
+
+    @Override
+    public String toString() {
+        return "{\"column\":" + ((left instanceof CharSequence) ? ("\"" + left + "\"") : left) + ", \"express\":" + express + ", \"value\":" + ((right instanceof CharSequence) ? ("\"" + right + "\"") : right) + "}";
+    }
+}